{"title":"Raw Materials","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSeattle Pottery Supply offers one of the most complete selections of chemicals and raw materials on the west coast for ceramics, glass, and enamel work. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWarning: Remember that many ceramic materials are TOXIC. The safest course is to consider all materials that you are working with to be toxic. Before you use any raw material, read up on it, and remember that combining two different items that are perfectly safe may result in an extremely toxic byproduct. Use good common sense and be safe. Always use a good industrial-grade respirator and rubber gloves. Do not eat or smoke when working with chemicals! Good habits of cleanliness, including frequent changes of contaminated clothing, can keep your studio safer. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003eAlso note: The companies that supply us with our raw materials are the best in their fields. However, many of the materials we supply are natural products, mined from the earth, and therefore may vary by batch. We can not make any warranty concerning these materials since the control of them is out of our hands. We urge you to test each raw material to make sure it will do what you expect before committing to a large batch. MSDSs are available upon request.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"30m-sand","title":"30M Sand","description":"\u003cp\u003eA coarse grain sand added to clay for textrue, higher thermal expansion, and better drying performance.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064556032139,"sku":"72170-1LB","price":4.69,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064556064907,"sku":"72170-10LB","price":10.56,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064556163211,"sku":"72170-25LB","price":13.89,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064556195979,"sku":"72170-5LB","price":7.99,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064556228747,"sku":"72170-50LB","price":21.12,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72170-30m-sand-50lb_b7c7bd33-3a5c-4a7a-9057-2dc3dcb6d499.jpg?v=1598906650"},{"product_id":"70m-sand","title":"70M Sand","description":"\u003cp\u003eA medium grain sand added to clay for textrue, higher thermal expansion, and better drying performance.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064556261515,"sku":"72171-1LB","price":4.82,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064556359819,"sku":"72171-10LB","price":11.35,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064556392587,"sku":"72171-25LB","price":23.38,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064558325899,"sku":"72171-5LB","price":7.04,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064559177867,"sku":"72171-50LB","price":36.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72171-70m-sand-50lb_662a3af9-c879-4deb-9d15-39970facfe24.jpg?v=1598907184"},{"product_id":"alumina-hydrate","title":"Alumina Hydrate","description":"\u003cp\u003eAlumina Hydrate is a key material in ceramics and glaze formulation, valued for its ability to reduce gloss and produce soft matte finishes. In glaze recipes, Alumina Hydrate helps control flow during firing and enhances surface stability. It also improves the strength and durability of finished pieces, making it especially useful for functional pottery and high-performance ceramic surfaces.\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064559472779,"sku":"72111-1LB","price":9.96,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064559898763,"sku":"72111-5LB","price":38.14,"currency_code":"USD","in_stock":false},{"title":"10# Bag","offer_id":34064559505547,"sku":"72111-10LB","price":69.76,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064559734923,"sku":"72111-25LB","price":155.42,"currency_code":"USD","in_stock":false},{"title":"50# Bag","offer_id":34064559964299,"sku":"72111-50LB","price":292.4,"currency_code":"USD","in_stock":false}]},{"product_id":"alumina-oxide-calcined","title":"Alumina Oxide (Calcined)","description":"Alumina Oxide Al2O3\r\nAllows adjustment of glaze from matt to rough. Adds strength. Also used as a kiln wash. Does not dissolve in water.","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064559997067,"sku":"72113-1LB","price":18.53,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064560062603,"sku":"72113-10LB","price":150.4,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064560128139,"sku":"72113-25LB","price":348.2,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064560193675,"sku":"72113-5LB","price":79.22,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064560259211,"sku":"72113-55LB","price":832.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72113-alumina-oxide_calcined_-50lb.jpg?v=1598896390"},{"product_id":"antimony-oxide","title":"Antimony Oxide","description":"Antimony Oxide Sb2O3\r\nAn opacifier for low fire glazes. Also used as colorant producing yellow with lead oxide.","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064560324747,"sku":"72301-1LB","price":17.95,"currency_code":"USD","in_stock":false},{"title":"1\/2# Bag","offer_id":34064560357515,"sku":"72301-1\/2LB","price":13.46,"currency_code":"USD","in_stock":false},{"title":"10# Bag","offer_id":34064560586891,"sku":"72301-10LB","price":161.55,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064561307787,"sku":"72301-25LB","price":359.0,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064561438859,"sku":"72301-5LB","price":85.26,"currency_code":"USD","in_stock":false},{"title":"50# Bag","offer_id":34064561504395,"sku":"72301-50LB","price":592.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72301-antimony-oxide--2.jpg?v=1598893403"},{"product_id":"ball-clay-54-s","title":"Ball Clay (54-S)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e54-S Ball Clay is a high-plasticity Kentucky ball clay prized for its balanced combination of formability and strength. Its fine particle size distribution gives excellent green strength, good drying behavior, and strong performance when pressing, extruding, or casting. Because of its low total carbon and moderate firing color, 54-S offers better oxidation behavior and produces fewer defects than clays with more organics.\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"419\"\u003eKentucky ball clays are some of the most widely used clays in ceramics because of their exceptional plasticity, strength, and fine particle size. They provide green strength in forming, reduce cracking during drying, and improve glaze fit, making them essential in everything from studio pottery to industrial ceramic bodies. Their light firing color also makes them versatile in blending with other clays and fluxes.\u003c\/p\u003e\n\u003cp data-start=\"421\" data-end=\"1041\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eGeologically, Kentucky ball clays formed over millions of years as feldspar-rich rocks weathered and broke down into fine particles. These sediments were carried by water and deposited in ancient basins, where low-energy conditions allowed extremely fine clay minerals (mainly kaolinite, with mica and quartz) to accumulate. Subsequent burial, compaction, and natural refining concentrated these clays into the pure, plastic seams mined today. This unique geological history gives Kentucky ball clays their rare balance of plasticity, strength, and consistency, making them a cornerstone of ceramic production worldwide.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064564158603,"sku":"71009-1LB","price":3.98,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064564191371,"sku":"71009-10LB","price":13.44,"currency_code":"USD","in_stock":true},{"title":"5lb Bag","offer_id":34064564453515,"sku":"71009-5LB","price":9.45,"currency_code":"USD","in_stock":true},{"title":"25 lb Bag","offer_id":43553790132363,"sku":"71009-25LB","price":20.78,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71009-ball-clay__54-s.jpg?v=1597867753"},{"product_id":"ball-clay-m-d-kentucky-stone","title":"Ball Clay (M\u0026D) Kentucky Stone","description":"\u003cp data-start=\"0\" data-end=\"417\"\u003eBall Clay (M\u0026amp;D) Kentucky Stone is a highly plastic ball clay known for its excellent forming qualities and consistent performance in ceramic bodies. It fires to a light buff or cream color, making it especially useful in stoneware and mid-range clays where both strength and color response are important. Its fine particle size adds green strength and workability, while blending easily with other clays and fluxes.\u003c\/p\u003e\n\u003cp data-start=\"419\" data-end=\"644\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eSubstitutes for Ball Clay (M\u0026amp;D) Kentucky Stone include OM-4 and Old Hickory 54-S, which share similar plasticity and firing properties, though adjustments to recipes may be needed to match color and shrinkage characteristics.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064565174411,"sku":"71008-1LB","price":4.5,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064565502091,"sku":"71008-10LB","price":40.5,"currency_code":"USD","in_stock":true},{"title":"5 lb Bag","offer_id":34064565600395,"sku":"71008-5LB","price":21.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71008-BallClay_M_D_KentuckyStone.jpg?v=1597872660"},{"product_id":"ball-clay-no-5","title":"Ball Clay (No. 5)","description":"\u003cp data-start=\"0\" data-end=\"404\"\u003eKentucky #5 Ball Clay is a high-plasticity clay prized for its strength, workability, and smooth texture. It blends well with other clays to improve green strength, reduce cracking during drying, and enhance the overall plasticity of ceramic bodies. Its light firing color makes it versatile for both stoneware and porcelain blends, providing consistent performance in throwing, casting, and extrusion.\u003c\/p\u003e\n\u003cp data-start=\"406\" data-end=\"629\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eSubstitutes for Kentucky #5 include OM-4, which offer similar plasticity and firing characteristics, though slight adjustments may be needed in clay body recipes to match shrinkage and color.\u003c\/p\u003e\n\u003cp\u003eKentucky ball clays are some of the most widely used clays in ceramics because of their exceptional plasticity, strength, and fine particle size. They provide green strength in forming, reduce cracking during drying, and improve glaze fit, making them essential in everything from studio pottery to industrial ceramic bodies. Their light firing color also makes them versatile in blending with other clays and fluxes.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064565731467,"sku":"71003-1LB","price":4.5,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064565764235,"sku":"71003-10LB","price":40.5,"currency_code":"USD","in_stock":true},{"title":"5lb Bag","offer_id":34064565862539,"sku":"71003-5LB","price":21.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71003-BALLCLAY_NO.5.jpg?v=1597785640"},{"product_id":"ball-clay-om4","title":"Ball Clay (Om4)","description":"\u003cp data-start=\"0\" data-end=\"386\"\u003e\u003cmeta charset=\"utf-8\"\u003eOM‑4 Ball Clay is a highly plastic, fine-textured clay that enhances both strength and workability in ceramic bodies. Its smooth, consistent particles improve green strength and reduce cracking during drying, making it ideal for stoneware, porcelain, and functional pottery. With moderate natural organics and a light-firing color, OM‑4 blends easily with other clays and fluxes to create durable, high-quality wares. While it can help suspend heavier materials in glazes in small amounts, its primary role is as a performance-enhancing clay in the body.\u003c\/p\u003e\n\u003cp\u003eKentucky ball clays are some of the most widely used clays in ceramics because of their exceptional plasticity, strength, and fine particle size. They provide green strength in forming, reduce cracking during drying, and improve glaze fit, making them essential in everything from studio pottery to industrial ceramic bodies. Their light firing color also makes them versatile in blending with other clays and fluxes.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064567402635,"sku":"71001B-1LB","price":3.88,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064567468171,"sku":"71001B-10LB","price":12.48,"currency_code":"USD","in_stock":true},{"title":"25 lb Bag","offer_id":34064567795851,"sku":"71001B-25LB","price":18.48,"currency_code":"USD","in_stock":false},{"title":"5 lb Bag","offer_id":34064567828619,"sku":"71001B-5LB","price":8.97,"currency_code":"USD","in_stock":true},{"title":"50lb Dry Bag","offer_id":34064567894155,"sku":"71001B-50LB","price":29.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71001b-ball-clay-om4.jpg?v=1597874015"},{"product_id":"ball-clay-saggar-xx","title":"Ball Clay (Saggar Xx)","description":"\u003cp\u003eXX Sagger Ball Clay is a fine-grained, low-iron ball clay from Kentucky, noted for its high silica and alumina content. It fires to a light cream color with approximately 13% shrinkage at cone 10. This ball clay is particularly effective in salt and soda firings, where its silica content promotes the \"orange peel\" effect on the fired surface. Its fine particle size and low flux make it ideal for creating smooth, durable clay bodies.\u003c\/p\u003e\n\u003cp\u003eDue to its low iron content, XX Sagger Ball Clay is also well-suited for flashing in wood firings. It is commonly used in clay body formulations for atmospheric firings and can be incorporated into slips for decorative effects.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064567959691,"sku":"71004-1LB","price":4.5,"currency_code":"USD","in_stock":false},{"title":"10 lb Bag","offer_id":34064567992459,"sku":"71004-10LB","price":40.5,"currency_code":"USD","in_stock":false},{"title":"25 lb Bag","offer_id":34064568123531,"sku":"71004-25LB","price":90.0,"currency_code":"USD","in_stock":false},{"title":"5 lb Bag","offer_id":34064568189067,"sku":"71004-5LB","price":21.38,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71004-BallClay_SaggarXX.jpg?v=1597785073"},{"product_id":"barium-carbonate","title":"Barium Carbonate","description":"\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eBarium Carbonate (BaCO₃) is a white powder used in ceramics as a flux in glazes and to add durability to clay bodies. It lowers glaze melting points, promotes glossy surfaces, and can enhance opacity and color response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eBarium Carbonate can be used to tie up sulfate in casting slips and reduce salt leaching in red bodies. Barium carbonate is also a common source of barium oxide in glazes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBarium Carbonate is toxic if ingested or inhaled, so it must be handled with care. Use gloves, a dust mask or respirator, and work in a well-ventilated area. Never use it on functional ware that will come into contact with food or drink unless it is fully encapsulated in a stable glaze.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/search\/Barium%20Carbonate\"\u003eBarium Carbonate\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064568877195,"sku":"72300-1LB","price":7.14,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064568909963,"sku":"72300-10LB","price":43.2,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064568975499,"sku":"72300-25LB","price":91.92,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064569041035,"sku":"72300-5LB","price":24.61,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064569073803,"sku":"72300-50LB","price":166.65,"currency_code":"USD","in_stock":false},{"title":"1\/2# Bag","offer_id":39410124456075,"sku":"72300-1\/2LB","price":5.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72300-barium_carbonate--2.jpg?v=1597968594"},{"product_id":"barnard-slip-clay-blackbird-sps","title":"Barnard Slip Clay (Blackbird)=Sps","description":"\u003cp\u003eBarnard has proven valuable for iron slip glazes requiring high clay content.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"50# Bag","offer_id":34064570220683,"sku":"71061-50LB","price":72.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/SPS_LOGO-cooper-02_c3b02cb7-ffc4-4d3b-8a17-451cc9358740.png?v=1599158452"},{"product_id":"bentonite-volclay","title":"Bentonite - Volclay","description":"\u003cp\u003eVolclay Bentonite is a fine-grained smectite clay used in ceramics as a plasticizer, binder, and suspending agent—helping improve workability, aid slip stability, and reduce cracking in bodies.\u003c\/p\u003e\n\u003cp\u003eContains naturally occurring crystalline silica and fine dust that can irritate respiratory passages, skin, and eyes. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest. Wash hands when done.\u003cbr\u003e\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064570318987,"sku":"71020-1LB","price":4.01,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064570351755,"sku":"71020-10LB","price":13.76,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064570417291,"sku":"71020-25LB","price":21.54,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064570450059,"sku":"71020-5LB","price":9.62,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064570548363,"sku":"71020-50LB","price":34.27,"currency_code":"USD","in_stock":true}]},{"product_id":"bismuth-subnitrate","title":"Bismuth Subnitrate","description":"\u003cp\u003eBismuth Subnitrate (Bi₅O(OH)(NO₃)₄) is a white or pale-yellow compound used in ceramics and glazes primarily as a colorant and opacifier. Under reduction, it can produce subtle gold to bronze surfaces and interesting metallic effects in specialty glazes.\u003c\/p\u003e\n\u003cp\u003eBismuth compounds can be hazardous if inhaled or ingested, potentially affecting the kidneys and liver over prolonged exposure. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest. Wash hands thoroughly after handling.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/bismuth+subnitrate\"\u003eBismuth Subnitrate\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064570646667,"sku":"71022-1LB","price":55.5,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064570744971,"sku":"71022-1\/2LB","price":41.63,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064570941579,"sku":"71022-1\/4LB","price":27.75,"currency_code":"USD","in_stock":true}]},{"product_id":"borax-5-mole","title":"Borax 5 Mole","description":"\u003cp\u003eBorax 5 Mole (Na₂B₄O₇·5H₂O), also called \u003cstrong\u003eBorax Pentahydrate\u003c\/strong\u003e, contains \u003cstrong\u003efive moles of water of crystallization\u003c\/strong\u003e per formula unit. This means that for every molecule of sodium tetraborate, there are five water molecules chemically bound within its crystal structure. The “5 mole” distinction matters because it defines the compound’s \u003cstrong\u003ehydration level\u003c\/strong\u003e—affecting both its weight and fluxing strength in ceramics.\u003c\/p\u003e\n\u003cp\u003eCompared to the 10 mole (decahydrate) form, Borax 5 Mole is more concentrated in boron, less prone to losing water during storage, and produces a smoother melt with fewer bubbles when fired. It is often preferred in glazes and frits for its stability and consistency.\u003c\/p\u003e\n\u003cp\u003eBorax can irritate the skin, eyes, and respiratory system. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Avoid ingestion and wash hands thoroughly after handling.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/borax+pentahydrate\"\u003eBorax Pentahydrate (5 Mole)\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064571334795,"sku":"72304-1LB","price":5.44,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064571367563,"sku":"72304-10LB","price":27.2,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064571433099,"sku":"72304-25LB","price":53.67,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064571498635,"sku":"72304-5LB","price":16.46,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064571564171,"sku":"72304-50LB","price":90.9,"currency_code":"USD","in_stock":true}]},{"product_id":"borax-anhydras","title":"Borax, Anhydras","description":"\u003cp\u003eAnhydrous Borax (sodium tetraborate with little or no water of crystallization) is produced by fusing hydrated borax and regrinding it into a glassy powder. (\u003ca href=\"https:\/\/digitalfire.com\/material\/anhydrous%2Bborax?utm_source=chatgpt.com\" title=\"Anhydrous Borax\"\u003eDigitalFire\u003c\/a\u003e) In ceramics, it is prized because it doesn’t “puff” or swell during melting, melts more cleanly, and provides a higher boron-to-weight ratio than hydrated forms. (\u003ca href=\"https:\/\/digitalfire.com\/material\/anhydrous%2Bborax?utm_source=chatgpt.com\" title=\"Anhydrous Borax\"\u003eDigitalFire\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eBecause it is a concentrated borate source, anhydrous borax must be handled with care: dust may irritate skin, eyes, and lungs, and borate compounds can be harmful if ingested. Always wear gloves, eye protection, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after use.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064571629707,"sku":"72306A-1LB","price":6.32,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064571662475,"sku":"72306A-10LB","price":35.52,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064571728011,"sku":"72306A-25LB","price":73.56,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064571760779,"sku":"72306A-5LB","price":20.7,"currency_code":"USD","in_stock":true},{"title":"55# Bag","offer_id":34064571859083,"sku":"72306A-50LB","price":179.69,"currency_code":"USD","in_stock":true}]},{"product_id":"borax-powdered-10-mole","title":"Borax, Powdered 10 Mole","description":"\u003cp\u003eThe “10 mole” in \u003cstrong\u003eBorax, Powdered 10 Mole\u003c\/strong\u003e refers to \u003cstrong\u003eBorax Decahydrate\u003c\/strong\u003e—its chemical formula is \u003cstrong\u003eNa₂B₄O₇·10H₂O\u003c\/strong\u003e.\u003cbr\u003eThis means each unit of sodium tetraborate contains ten moles of chemically bound water (water of crystallization).\u003c\/p\u003e\n\u003cp\u003eThat water content affects how the material behaves in ceramics:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlux behavior:\u003c\/strong\u003e When heated, the ten water molecules are released between 150–300 °C, causing Borax to puff and lose weight before it melts and begins to flux.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHandling differences:\u003c\/strong\u003e Because of its water content, 10-mole borax is bulkier and less concentrated in boron than anhydrous (0-mole) or pentahydrate (5-mole) forms, so glaze recipes using different borax types must adjust by weight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e The decahydrate can lose water over time if exposed to air, altering its weight and chemistry slightly, so it’s best stored sealed and dry.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDust can irritate the eyes, skin, and respiratory system. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Avoid ingestion and wash hands thoroughly after handling.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/borax+10+mole\"\u003eBorax Decahydrate\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064572022923,"sku":"72306-1LB","price":5.81,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064572088459,"sku":"72306-10LB","price":30.72,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064572121227,"sku":"72306-25LB","price":62.09,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064572219531,"sku":"72306-5LB","price":18.26,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064572514443,"sku":"72306-50LB","price":107.57,"currency_code":"USD","in_stock":true}]},{"product_id":"boric-acid","title":"Boric Acid","description":"\u003cp\u003eBoric Acid (H₃BO₃) is a white, water-soluble crystalline compound used in ceramics as a source of boron (B₂O₃) in glazes and frits. It begins to decompose around 150–300 °C, releasing water and forming boron oxide, which then acts as a flux to help melt silica at lower temperatures. Because of this behavior, boric acid is often used in low-fire and fast-fire glaze formulations to promote gloss and glass formation. (\u003ca href=\"https:\/\/digitalfire.com\/material\/boric%2Bacid?utm_source=chatgpt.com\" title=\"Boric Acid\"\u003edigitalfire.com\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eBoric Acid can irritate the respiratory system, eyes, and skin. Avoid inhaling the dust, and when mixing always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands and exposed skin thoroughly after handling.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064572547211,"sku":"72305-1LB","price":6.43,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064572776587,"sku":"72305-10LB","price":36.48,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064572842123,"sku":"72305-25LB","price":78.15,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064573038731,"sku":"72305-5LB","price":21.19,"currency_code":"USD","in_stock":false}]},{"product_id":"calcium-carbonate-whiting","title":"Calcium Carbonate (Whiting)","description":"\u003cp\u003eCalcium Carbonate (CaCO₃), also known as Whiting, is a white, powdery material used in ceramics as a flux in glazes and as a source of calcium in clay bodies. It helps lower glaze melting points, encourages glossy surfaces, and can influence glaze color and opacity.\u003c\/p\u003e\n\u003cp\u003eWhile relatively low in toxicity, Calcium Carbonate can be irritating if inhaled as dust. Use a dust mask or respirator when handling, and work in a well-ventilated area to avoid respiratory irritation.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/search\/Calcium%20Carbonate\"\u003eCalcium Carbonate (Whiting)\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064574218379,"sku":"72120-1LB","price":4.49,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064574414987,"sku":"72120-10LB","price":18.24,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064574447755,"sku":"72120-25LB","price":34.55,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064574677131,"sku":"72120-5LB","price":11.9,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064574873739,"sku":"72120-50LB","price":48.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72120-calcium_carbonate__whiting.jpg?v=1597945304"},{"product_id":"chrome-oxide","title":"Chrome Oxide","description":"\u003cp\u003eChrome Oxide (Cr₂O₃) is a powerful ceramic colorant that produces stable, rich green tones in glazes, even at high firing temperatures. It is highly refractory and often used in small amounts to achieve celadon greens, jade-like surfaces, or as a component in black glazes when combined with other oxides. Its chemical stability makes it resistant to volatilization, giving consistent results across different kiln atmospheres.\u003c\/p\u003e\n\u003cp\u003eDust can irritate the lungs, skin, and eyes, and chromium compounds should always be handled with care. Wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after handling.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/chrome+oxide\"\u003eChrome Oxide\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1\/4# Bag","offer_id":34064575266955,"sku":"72307-1\/4LB","price":9.65,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064575234187,"sku":"72307-1\/2LB","price":15.08,"currency_code":"USD","in_stock":true},{"title":"1# Bag","offer_id":34064575201419,"sku":"72307-1LB","price":25.53,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064575529099,"sku":"72307-5LB","price":111.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72307-chrome-oxide-50lb.jpg?v=1598897260"},{"product_id":"cmc-carboxyl-methyl-cellulose","title":"Cmc (Carboxyl Methyl Cellulose)","description":"An organic cellulose gum used as a glaze thickener, binder and suspending agent. Use about 1 - 2% for brushing glazes.","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064576348299,"sku":"72308-1LB","price":48.38,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064576544907,"sku":"72308-1\/2LB","price":37.38,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064577003659,"sku":"72308-1\/4LB","price":22.14,"currency_code":"USD","in_stock":true},{"title":"1 Quart","offer_id":34388522139787,"sku":"72308-QT","price":20.0,"currency_code":"USD","in_stock":true},{"title":"1 Pint","offer_id":43226892042379,"sku":"72308-PT","price":11.0,"currency_code":"USD","in_stock":true},{"title":"1 Gallon","offer_id":43226892632203,"sku":"72308-1GAL","price":75.0,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":43226892992651,"sku":"72308-5LB","price":221.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/sps_cmc-1.jpg?v=1606505077"},{"product_id":"cobalt-carbonate","title":"Cobalt Carbonate","description":"\u003cp\u003eCobalt Carbonate (CoCO₃) is a deep blue powder used in ceramics to produce vibrant blue colors in glazes, stains, and decorative slips. It is highly stable during firing, providing consistent color in both oxidation and reduction atmospheres, making it essential for blue-and-white wares and high-temperature glazes.\u003c\/p\u003e\n\u003cp\u003eCobalt is expensive because it is a rare metal, mined in limited quantities, often as a byproduct of nickel or copper production. Its extraction requires complex processing, and global supply is concentrated in a few regions, which drives up the cost of cobalt-containing materials like Cobalt Carbonate.\u003c\/p\u003e\n\u003cp\u003eCobalt Carbonate is toxic if inhaled or ingested and can cause skin or respiratory irritation. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not use it on functional ware that will contact food or drink unless fully encapsulated in a stable glaze.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/search\/Cobalt%20Carbonate\"\u003eCobalt Carbonate\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064577265803,"sku":"72309-1LB","price":69.84,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064577298571,"sku":"72309-1\/2LB","price":38.13,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064577364107,"sku":"72309-1\/4LB","price":21.62,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064577396875,"sku":"72309-5LB","price":325.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/296-clay.jpg?v=1597951690"},{"product_id":"cobalt-oxide","title":"Cobalt Oxide","description":"\u003cp\u003eCobalt Oxide (Co₃O₄) is a powerful colorant widely used in ceramics for producing deep blue hues in glazes and slips. Even in small amounts, it yields intense color, and when combined with other oxides, it can create a broad range of tones from blue-greens to purples and blacks. Because cobalt is a relatively scarce metal with high demand across multiple industries, cobalt-based ceramic materials are expensive compared to most other colorants.\u003c\/p\u003e\n\u003cp\u003eDust is harmful if inhaled or ingested and may cause irritation to the skin and eyes. Prolonged exposure can have toxic effects. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after use.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/cobalt+oxide\"\u003eCobalt Oxide\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064577495179,"sku":"72310-1LB","price":103.26,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064577527947,"sku":"72310-1\/2LB","price":55.54,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064577593483,"sku":"72310-1\/4LB","price":30.61,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":39410112397451,"sku":"72310-5LB","price":484.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72310-cobalt-oxide-50lb.jpg?v=1598897691"},{"product_id":"copper-oxide-black-cupric","title":"Copper Oxide, Black (Cupric)","description":"\u003cp\u003eCopper Oxide, Black (CuO) is a black copper oxide used in ceramics as a colorant and flux in glazes. It produces green, turquoise, and blue tones depending on the glaze composition and firing atmosphere, particularly in oxidation or reduction firings. It is commonly used in high-fire stoneware and porcelain glazes to achieve earthy and vibrant effects.\u003c\/p\u003e\n\u003cp\u003eDust can irritate the respiratory system, eyes, and skin. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/copper+oxide+black\"\u003eCopper Oxide, Black (Cupric)\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064578019467,"sku":"72312-1LB","price":37.06,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064578052235,"sku":"72312-1\/2LB","price":21.06,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064578117771,"sku":"72312-1\/4LB","price":12.77,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064578183307,"sku":"72312-10LB","price":324.8,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064578216075,"sku":"72312-5LB","price":168.05,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72312-copper-oxide-black-50lb.jpg?v=1598894205"},{"product_id":"copper-oxide-red-cuprous","title":"Copper Oxide, Red (Cuprous)","description":"\u003cp\u003eCopper Oxide, Red (Cu₂O) is a red or reddish-brown copper oxide used in ceramics as a colorant and flux in glazes. It is particularly effective in reduction firings, producing red, pink, or coppery metallic effects, and is often used in high-fire stoneware and porcelain for unique surface coloration.\u003c\/p\u003e\n\u003cp\u003eDust can irritate the respiratory system, eyes, and skin. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/copper+oxide+red\"\u003eCopper Oxide, Red (Cuprous)\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064578281611,"sku":"72313-1LB","price":34.31,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064578314379,"sku":"72313-5LB","price":153.87,"currency_code":"USD","in_stock":false},{"title":"1\/2# Bag","offer_id":39319566254219,"sku":"72313-1\/2LB","price":18.94,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":39319566319755,"sku":"72313-1\/4LB","price":11.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72313-copper-oxide_red.jpg?v=1598895951"},{"product_id":"cornwall-stone","title":"Cornwall Stone","description":"\u003cp\u003eCornwall Stone (also known as Cornish Stone or China Stone) is a partially kaolinized feldspathic rock that served as a low-iron flux in both glazes and clay bodies. Its high silica content and balanced mix of alkali and alkaline earth oxides allowed smooth melting with minimal surface tension, making it useful to reduce crawling and aid adhesion in engobes and glazes. (\u003ca href=\"https:\/\/digitalfire.com\/material\/cornwall%2Bstone?utm_source=chatgpt.com\" title=\"Cornwall Stone\"\u003eDigitalFire\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eDust may contain respirable silica. It can irritate lungs, eyes, and skin. Always wear gloves, a properly fitted respirator, and eye protection. Work in a well-ventilated area. Do not ingest. Wash hands and exposed skin thoroughly after handling.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064579854475,"sku":"72122-1LB","price":4.69,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064579920011,"sku":"72122-1\/2LB","price":4.21,"currency_code":"USD","in_stock":false},{"title":"10# Bag","offer_id":34064580051083,"sku":"72122-10LB","price":20.16,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064580083851,"sku":"72122-25LB","price":39.14,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064580116619,"sku":"72122-5LB","price":12.88,"currency_code":"USD","in_stock":true}]},{"product_id":"cryolite-kryolite","title":"Cryolite (Kryolite)","description":"\u003cp\u003eCryolite (Na₃AlF₆) is a sodium aluminum fluoride mineral used in ceramics primarily as a flux and complexing agent in glazes. It lowers melting temperatures and helps produce glossy, flowing surfaces at relatively moderate kiln temperatures.\u003c\/p\u003e\n\u003cp\u003eCryolite can decompose to release fluoride fumes, which are toxic when inhaled and harmful to the eyes and skin. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after handling.\u003cbr\u003e\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064580411531,"sku":"72125-1LB","price":9.08,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064580477067,"sku":"72125-10LB","price":61.44,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064580509835,"sku":"72125-25LB","price":137.82,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064580542603,"sku":"72125-5LB","price":34.56,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064580608139,"sku":"72125-50LB","price":253.01,"currency_code":"USD","in_stock":true}]},{"product_id":"dolomite","title":"Dolomite","description":"\u003cp\u003eDolomite (CaMg(CO₃)₂) is a double carbonate mineral used in ceramics as a source of both calcium oxide (CaO) and magnesium oxide (MgO). It acts as a mild flux in glazes, helps stabilize the glaze melt, and can increase gloss and surface durability. In clay bodies, dolomite can reduce pyrometric cone melting range, improve thermal expansion properties, and contribute to fired hardness.\u003c\/p\u003e\n\u003cp\u003eDolomite dust contains magnesium and calcium compounds and may include trace silica — inhalation can irritate the respiratory system. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after handling.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/dolomite\"\u003eDolomite\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064581558411,"sku":"72127-1LB","price":5.03,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064581591179,"sku":"72127-10LB","price":23.36,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064581656715,"sku":"72127-25LB","price":46.79,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064581689483,"sku":"72127-5LB","price":14.51,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064581951627,"sku":"72127-50LB","price":72.72,"currency_code":"USD","in_stock":true}]},{"product_id":"epsom-salts-magnesium-sulfate","title":"Epsom Salts (Magnesium Sulfate)","description":"\u003cp\u003eSuspending agent in glazes. Used to flocculate over-doped slips.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064582017163,"sku":"72314-1LB","price":5.92,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064582115467,"sku":"72314-10LB","price":31.68,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064582181003,"sku":"72314-25LB","price":66.68,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064582213771,"sku":"72314-5LB","price":19.4,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064582246539,"sku":"72314-50LB","price":112.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72314-epsom-salts__magnesium_sulfate.jpg?v=1598915417"},{"product_id":"feldspar-kona-f4-minspar-200","title":"Minspar 200 - Feldspar","description":"\u003cp\u003eMinspar 200 is a high-quality, 200 mesh soda feldspar used in ceramics as a sodium-rich flux in glazes and clay bodies. It promotes vitrification, enhances glaze fluidity, and its low iron content makes it especially suitable for white clay bodies and porcelain.\u003c\/p\u003e\n\u003cp\u003eMinspar 200 can be irritating if inhaled as dust. Always wear a dust mask or respirator, gloves, and work in a well-ventilated area.\u003c\/p\u003e\n\u003cp\u003eLearn more about \u003ca href=\"https:\/\/digitalfire.com\/material\/search\/Minspar%20200\"\u003eMinspar 200\u003c\/a\u003e on DigitalFire.com.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eMinspar 200 can be used as a replacement for Kona F4.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064584966283,"sku":"72104-1LB","price":4.01,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064584999051,"sku":"72104-10LB","price":13.76,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064585064587,"sku":"72104-25LB","price":23.84,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064585097355,"sku":"72104-5LB","price":9.62,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064585228427,"sku":"72104-50LB","price":39.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72104-feldspar__kona_f4.jpg?v=1598047885"},{"product_id":"fireclay-goldart","title":"Fireclay Goldart","description":"\u003cp\u003eGoldArt is a stoneware clay burning to a very light buff color at cone 06 and to a darker cream color at cone 8 and light grey at cone 10. Used as a primary component of stoneware bodies in the cone 6-10 range, it lends plasticity to the body while the small amount of iron and titania lead to pleasing orange, grey, red and other color effects in reduction and\/or wood firing atmospheres. \u003c\/p\u003e\n\u003cp\u003eGoldArt refractory clay is 200 mesh, and made by the Cedar Heights Clay Company, which has been mining and processing clays in Southern Ohio since 1924.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"5 lb Bag","offer_id":34064586014859,"sku":"71030-5LB","price":6.73,"currency_code":"USD","in_stock":true},{"title":"50lb Dry Bag","offer_id":34064586047627,"sku":"71030-50LB","price":34.0,"currency_code":"USD","in_stock":true},{"title":"1 lb Bag","offer_id":43226359038091,"sku":"71030-1LB","price":4.5,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":43226359070859,"sku":"71030-10LB","price":10.76,"currency_code":"USD","in_stock":true},{"title":"25 lb Bag","offer_id":43226359103627,"sku":"71030-25LB","price":22.31,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71030-fireclay-goldart.jpg?v=1598312442"},{"product_id":"fireclay-hawthorne-missouri","title":"Fireclay Hawthorne Missouri","description":"\u003cp data-start=\"0\" data-end=\"265\"\u003eHawthorne Missouri Fireclay is a highly plastic, fine-grain clay used in stoneware and mid- to high-fire clay bodies. It contributes strength, workability, and a smooth texture to clay blends, making it ideal for throwing, hand-building, and casting applications.\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"265\"\u003eIrritating if inhaled or ingested. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest. Wash hands when done.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064586670219,"sku":"71042-1LB","price":4.5,"currency_code":"USD","in_stock":false},{"title":"10 lb Bag","offer_id":34064588439691,"sku":"71042-10LB","price":10.18,"currency_code":"USD","in_stock":false},{"title":"25 lb Bag","offer_id":34064589258891,"sku":"71042-25LB","price":21.25,"currency_code":"USD","in_stock":false},{"title":"5 lb Bag","offer_id":34064589324427,"sku":"71042-5LB","price":6.42,"currency_code":"USD","in_stock":false},{"title":"50lb Dry Bag","offer_id":34064589357195,"sku":"71042-50LB","price":32.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71042-fireclay-hawthorne-missouri.jpg?v=1598312106"},{"product_id":"fireclay-lincoln-60","title":"Fireclay Lincoln 60","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eLincoln 60 Fireclay is a fine mesh, high-plasticity clay suitable for mid-range and stoneware clay bodies.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064589881483,"sku":"71050-1LB","price":3.88,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064589914251,"sku":"71050-10LB","price":12.48,"currency_code":"USD","in_stock":false},{"title":"25 lb Bag","offer_id":34064589979787,"sku":"71050-25LB","price":20.78,"currency_code":"USD","in_stock":true},{"title":"5 lb Bag","offer_id":34064590045323,"sku":"71050-5LB","price":8.97,"currency_code":"USD","in_stock":true},{"title":"50lb Dry Bag","offer_id":34064590274699,"sku":"71050-50LB","price":34.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71050-fireclay-lincoln-60.jpg?v=1598312048"},{"product_id":"fireclay-redart","title":"Fireclay Redart","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eRedart is commonly used in low-fire clay bodies and terra cotta applications. Its high iron content contributes to its distinctive red hue. Due to its low plasticity, it is often combined with other clays to improve workability and reduce shrinkage.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1 lb Bag","offer_id":34064590471307,"sku":"71031-1LB","price":4.18,"currency_code":"USD","in_stock":true},{"title":"10 lb Bag","offer_id":34064590536843,"sku":"71031-10LB","price":15.36,"currency_code":"USD","in_stock":true},{"title":"25 lb Bag","offer_id":34064590569611,"sku":"71031-25LB","price":27.66,"currency_code":"USD","in_stock":false},{"title":"5 lb Bag","offer_id":34064590635147,"sku":"71031-5LB","price":10.43,"currency_code":"USD","in_stock":true},{"title":"50lb Dry Bag","offer_id":34064590700683,"sku":"71031-50LB","price":44.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71031-fireclay-redart.jpg?v=1598312325"},{"product_id":"fluorspar","title":"Fluorspar","description":"\u003cp\u003eFluorspar (CaF₂), also known as fluorite, is a chemical flux and opacifier used in ceramics and glaze formulation. It helps lower the melting point of glazes and contributes to opacity at low-fire temperatures. However, at higher temperatures it decomposes — releasing fluorine gas which can be toxic and cause blistering in glazes. (\u003ca href=\"https:\/\/digitalfire.com\/material\/fluorspar?utm_source=chatgpt.com\" title=\"Fluorspar\"\u003edigitalfire.com\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eCan be hazardous if fluorine gases are released during firing. Handle powder carefully, wear gloves and a respirator, work in a well-ventilated area, and avoid ingestion.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064590733451,"sku":"72129-1LB","price":4.5,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064590798987,"sku":"72129-10LB","price":40.5,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064590831755,"sku":"72129-25LB","price":90.0,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064591159435,"sku":"72129-5LB","price":21.38,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064591716491,"sku":"72129-50LB","price":148.5,"currency_code":"USD","in_stock":true}]},{"product_id":"grog-50m-christy","title":"Grog (50M, Christy)","description":"\u003cp\u003e50 Mesh means the materials was passed through a 50 mesh screen at the Christy Minerals factory, and this is what fit through the screen. 50 Mesh is more coarse than 100 Mesh, but finer than 35 Mesh.\u003c\/p\u003e\n\u003cp\u003eChristy Grog is a calcined clay product used in ceramics to add texture, reduce shrinkage, and improve thermal shock resistance in clay bodies. It is commonly used in stoneware, sculptural clay, and hand-built pottery to create grogged textures, strengthen the body, and reduce warping during drying and firing.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064592339083,"sku":"72211-1LB","price":4.18,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064592404619,"sku":"72211-10LB","price":15.36,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064592732299,"sku":"72211-25LB","price":27.66,"currency_code":"USD","in_stock":true},{"title":"5# Bag","offer_id":34064592797835,"sku":"72211-5LB","price":10.43,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064592830603,"sku":"72211-50LB","price":34.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72209g-grog-christy-50m.jpg?v=1598385828"},{"product_id":"grog-mo-k-23-brick-dust-fine-to-coarse","title":"Grog,  Mo K-23 Brick Dust, Fine To Coarse","description":"White Color","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064592896139,"sku":"71043-1LB","price":5.25,"currency_code":"USD","in_stock":false},{"title":"10# Bag","offer_id":34064592961675,"sku":"71043-10LB","price":47.25,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064592994443,"sku":"71043-25LB","price":105.0,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064593059979,"sku":"71043-5LB","price":24.94,"currency_code":"USD","in_stock":false},{"title":"50# Bag","offer_id":34064593584267,"sku":"71043-50LB","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/71043-mo-k-23-brick.jpg?v=1598386826"},{"product_id":"grog-christy-100m","title":"Grog, Christy 100M","description":"\u003cp\u003e100 Mesh means the materials was passed through a 100 mesh screen at the Christy Minerals factory, and this is what fit through the screen. 100 Mesh is finer than 35 Mesh.\u003c\/p\u003e\n\u003cp\u003eChristy Grog is a fine, calcined clay product used in ceramics to add texture, reduce shrinkage, and improve thermal shock resistance in clay bodies. It is commonly used in stoneware, sculptural clay, and hand-built pottery to create grogged textures, strengthen the body, and reduce warping during drying and firing.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064593977483,"sku":"72209G-1LB","price":3.98,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064594043019,"sku":"72209G-10LB","price":13.44,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064594075787,"sku":"72209G-25LB","price":23.07,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064594141323,"sku":"72209G-5LB","price":9.45,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064594239627,"sku":"72209G-50LB","price":35.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72209g-grog-christy-100.jpg?v=1598385496"},{"product_id":"grog-christy-12-20m-mix-10-pkg","title":"Grog, Christy 12-20M Mix","description":"\u003cp\u003e12-20 Mesh means we blended 12 Mesh and 20 Mesh grogs. This is our most coarse grog.\u003c\/p\u003e\n\u003cp\u003eChristy Grog is a calcined clay product used in ceramics to add texture, reduce shrinkage, and improve thermal shock resistance in clay bodies. It is commonly used in stoneware, sculptural clay, and hand-built pottery to create grogged textures, strengthen the body, and reduce warping during drying and firing.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"5# Bag","offer_id":34064594436235,"sku":"72206-5LB","price":11.9,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064594469003,"sku":"72206-50LB","price":48.48,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":43553790460043,"sku":"72206-10LB","price":18.24,"currency_code":"USD","in_stock":true},{"title":"1# Bag","offer_id":44987425915019,"sku":"72206-1LB","price":4.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72206-grog-christy-12-20m_mix10.jpg?v=1598389770"},{"product_id":"grog-christy-20m","title":"Grog, Christy 20M","description":"\u003cp\u003e20 Mesh means the materials was passed through a 20 Mesh screen at the Christy Minerals factory, and this is what fit through the screen. 20 Mesh is our most coarse grog material.\u003c\/p\u003e\n\u003cp\u003eChristy Grog is a fine, calcined clay product used in ceramics to add texture, reduce shrinkage, and improve thermal shock resistance in clay bodies. It is commonly used in stoneware, sculptural clay, and hand-built pottery to create grogged textures, strengthen the body, and reduce warping during drying and firing.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064594534539,"sku":"72208-1LB","price":4.75,"currency_code":"USD","in_stock":false},{"title":"10# Bag","offer_id":34064594567307,"sku":"72208-10LB","price":7.25,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064594698379,"sku":"72208-25LB","price":15.19,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064594731147,"sku":"72208-5LB","price":4.88,"currency_code":"USD","in_stock":false},{"title":"50# Bag","offer_id":34064595779723,"sku":"72208-50LB","price":22.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/2727\/0027\/products\/72208g-grog-christy-70--2.jpg?v=1598384399"},{"product_id":"grog-christy-35m","title":"Grog, Christy 35M","description":"\u003cp\u003e35 Mesh means the materials was passed through a 35 mesh screen at the Christy Minerals factory, and this is what fit through the screen. 35 Mesh is more coarse than 100 Mesh, but finer than 20 Mesh.\u003c\/p\u003e\n\u003cp\u003eChristy Grog is a fine, calcined clay product used in ceramics to add texture, reduce shrinkage, and improve thermal shock resistance in clay bodies. It is commonly used in stoneware, sculptural clay, and hand-built pottery to create grogged textures, strengthen the body, and reduce warping during drying and firing.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064595910795,"sku":"72209-1LB","price":4.18,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064595976331,"sku":"72209-10LB","price":15.36,"currency_code":"USD","in_stock":false},{"title":"25# Bag","offer_id":34064596009099,"sku":"72209-25LB","price":27.66,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064596074635,"sku":"72209-5LB","price":10.43,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064596402315,"sku":"72209-50LB","price":34.85,"currency_code":"USD","in_stock":true}]},{"product_id":"gum-arabic","title":"Gum Arabic","description":"\u003cp\u003eOrganic gum that aids in the workability of clay.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064597581963,"sku":"72387-1LB","price":26.72,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064597614731,"sku":"72387-1\/2LB","price":15.68,"currency_code":"USD","in_stock":true},{"title":"1\/4# Bag","offer_id":34064598597771,"sku":"72387-1\/4LB","price":9.98,"currency_code":"USD","in_stock":true}]},{"product_id":"hectalite","title":"Hectalite","description":"\u003cp\u003eHectalite (dry-processed hectorite) is a microfine, magnesium-rich clay additive used in ceramics to improve suspension, binding, and plasticizing behavior in slips and glazes. (\u003ca href=\"https:\/\/digitalfire.com\/material\/hectalite%2B200?utm_source=chatgpt.com\" title=\"Hectalite 200\"\u003edigitalfire.com\u003c\/a\u003e) Hectalite 200 is formulated more for rheology control, whereas Hectalite GM is better suited for binding and plasticizing in clay bodies. (\u003ca href=\"https:\/\/digitalfire.com\/material\/hectalite%2Bgm?utm_source=chatgpt.com\" title=\"Hectalite GM\"\u003edigitalfire.com\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eContains fine particles that may contain silica and other minerals. Inhalation of the dust could lead to respiratory irritation. Always wear a dust mask or respirator, gloves, and work in a well-ventilated area. Do not ingest. Wash hands thoroughly after handling.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064598630539,"sku":"71021-1LB","price":10.34,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064598696075,"sku":"71021-10LB","price":73.28,"currency_code":"USD","in_stock":true},{"title":"25# Bag","offer_id":34064599711883,"sku":"71021-25LB","price":166.13,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064599777419,"sku":"71021-5LB","price":39.94,"currency_code":"USD","in_stock":true},{"title":"50# Bag","offer_id":34064599810187,"sku":"71021-50LB","price":309.06,"currency_code":"USD","in_stock":true}]},{"product_id":"ilmenite-granular","title":"Ilmenite, Granular","description":"\u003cp\u003eHigh-fire glaze speckling agent.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064600006795,"sku":"72315-1LB","price":7.34,"currency_code":"USD","in_stock":true},{"title":"1\/2# Bag","offer_id":34064600039563,"sku":"72315-1\/2LB","price":5.59,"currency_code":"USD","in_stock":true},{"title":"10# Bag","offer_id":34064600301707,"sku":"72315-10LB","price":44.16,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064600334475,"sku":"72315-5LB","price":25.59,"currency_code":"USD","in_stock":false}]},{"product_id":"ilmenite-powdered","title":"Ilmenite, Powdered","description":"\u003cp\u003eHigh-fire glaze speckling agent.\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064600629387,"sku":"72316-1LB","price":10.5,"currency_code":"USD","in_stock":false},{"title":"1\/2# Bag","offer_id":43227164115083,"sku":"72316-1\/2LB","price":7.88,"currency_code":"USD","in_stock":false}]},{"product_id":"iron-chloride","title":"Iron Chloride","description":"\u003cp\u003eIron Chloride (commonly ferric chloride, FeCl₃) is a chemical compound used in ceramics and glazes to introduce iron oxide for coloring and fluxing effects. In small amounts, it can help deepen earthy tones and contribute to variegated surfaces under certain firing conditions.\u003c\/p\u003e\n\u003cp\u003eIron Chloride is corrosive and can cause burns or severe irritation if it contacts skin or eyes, and its fumes are harmful if inhaled. Always wear gloves, eye protection, and a respirator or dust mask, and work in a well-ventilated area. Do not ingest. Wash hands and any affected skin thoroughly after handling.\u003cbr\u003e\u003c\/p\u003e","brand":"Seattle Pottery Supply","offers":[{"title":"1# Bag","offer_id":34064601350283,"sku":"71051-1LB","price":9.25,"currency_code":"USD","in_stock":false},{"title":"1\/2# Bag","offer_id":34064601415819,"sku":"71051-1\/2LB","price":6.94,"currency_code":"USD","in_stock":false},{"title":"1\/4# Bag","offer_id":34064601448587,"sku":"71051-1\/4LB","price":4.63,"currency_code":"USD","in_stock":false},{"title":"5# Bag","offer_id":34064601514123,"sku":"71051-5LB","price":43.94,"currency_code":"USD","in_stock":false}]},{"product_id":"iron-chromate","title":"Iron Chromate","description":"\u003cp\u003eIron Chromate (FeCrO₄) is a mixed oxide compound combining iron and chromium, used in ceramics as a strong coloring agent to produce deep green to chrome-green tones in glazes. Its color effects depend on glaze chemistry, firing temperature, and atmosphere, often yielding rich, saturated hues.\u003c\/p\u003e\n\u003cp\u003eIron Chromate may pose health risks due to the presence of chromium compounds, which can be toxic or carcinogenic in certain oxidation states. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest. 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