SP20 - Transparent
SKU: 20020-1LB Brand: Seattle Pottery Supply
$7.95
SP20 - Transparent
Fires to CONE 06 - 1
A great low-fire clear glaze. Great clarity whether you're packing on the underglazes or wanting to highlight the natural beauty of your clay body. This glaze is best when applied thinly. Add water and mix well if the consistency is too thick.
Low-fire glazes, such as this, should be used on low-fire clay (meant to be fired to cone 06 - 04).
To apply: Always mix first before each use! Then brush or dip onto bisque-fired pottery (pottery that has been fired to cone 08 - 06).
If brushing, apply three layers, alternating the direction of the brush strokes with each layer to create a smooth finish. Let dry completely between each coat (until it completely loses its sheen), but do not over-dry or the glaze may crawl.
If dipping, dip and hold in the glaze, then remove from the glaze and shake off the excess. The amount of time you hold the piece in the glaze will dictate the thickness of the coat. We recommend 1 dip. A second layer can be applied, but more layers can result in the glaze running off the pot. Let dry until it loses its sheen between each coat if you are adding additional coats. Fire to cone 06-04.
If the consistency seems thick, first mix thoroughly. If it still seems thick, add water SPARINGLY to thin it down. If too thin, leave the container open to let some of the moisture evaporate.
Note that mixing glazes together or applying one on top of the other may cause the glazes to react differently than you expect. We recommend that you always test a new glaze combination and clay/glaze combination to see how it performs.
For a more in-depth how-to, check out Pottery Glazing Techniques.
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Low-fire glazes, such as this, should be used on low-fire clay (meant to be fired to cone 06 - 04).
To apply: Always mix first before each use! Then brush or dip onto bisque-fired pottery (pottery that has been fired to cone 08 - 06).
If brushing, apply three layers, alternating the direction of the brush strokes with each layer to create a smooth finish. Let dry completely between each coat (until it completely loses its sheen), but do not over-dry or the glaze may crawl.
If dipping, dip and hold in the glaze, then remove from the glaze and shake off the excess. The amount of time you hold the piece in the glaze will dictate the thickness of the coat. We recommend 1 dip. A second layer can be applied, but more layers can result in the glaze running off the pot. Let dry until it loses its sheen between each coat if you are adding additional coats. Fire to cone 06-04.
If the consistency seems thick, first mix thoroughly. If it still seems thick, add water SPARINGLY to thin it down. If too thin, leave the container open to let some of the moisture evaporate.
Note that mixing glazes together or applying one on top of the other may cause the glazes to react differently than you expect. We recommend that you always test a new glaze combination and clay/glaze combination to see how it performs.
For a more in-depth how-to, check out Pottery Glazing Techniques.
- Brand
- Seattle Pottery Supply
- Type
- Lowfire Glazes
- Firing range
- Lowfire ∆06-04
- SKU
- 20020-1LB
- Weight
- 1.16 lb
- Availability
- In stock & ready to ship
| SKU | Wet or Dry | INVENTORY | ORDER ELIGIBILITY | PRICE |
|---|---|---|---|---|
| 20020-1LB | Dry / 1 Pound Bag | 2 in stock | While supplies last | $7.95 |
| 20020-5LB | Dry / 5 Pound Bag | 1 in stock | While supplies last | $31.95 |
| 20020-10LB | Dry / 10 Pound Bag | 1 in stock | While supplies last | $56.00 |
| 20020-25LB | Dry / 25 Pound Bag | Out of Stock | Please call | $100.00 |
| 20020-50LB | Dry / 50 Pound Bag | Out of Stock | Please call | $175.00 |
| 20020-PT | Wet / 1 Pint | 7 in stock | While supplies last | $16.50 |
| 20020-QT | Wet / 1 Quart | 3 in stock | While supplies last | $24.50 |
| 20020-1GAL | Wet / 1 Gallon | 1 in stock | While supplies last | $42.50 |
| 20020-5GAL | Wet / 5 Gallon | Out of Stock | Please call | $135.00 |
*Back orders will be placed for order quantities exceeding that of on-hand inventory.
Questions & Answers
-
I frequently do raw firing on small pieces and flat ornaments, and by raw firing I leave out the bisque firing stage and do a glaze fire on bone dry clay that has had glaze applied. I have had good results using various locally purchased glazes when firing at 04 or 05.
That being said, the recommendation in this glaze description is to fire on bisque fired clay. Have there ever been results reported for low firing this glaze on bone dry clay? If so, what were the results?We don't have any tests of this glaze for a once fire, however this doesn't mean our SP20 won't work on green ware. The best way to know would be testing this with the clay and other glazes you plan on using -- some glaze and cay pairing are not ideal for once firings. We recommend brushing thin layers, allowing each layer to dry between application. If you can, we also recommend a slow ramp speed to minimize the chances of bloating, bubbling, or other surface irregularities. — The Seattle Pottery Supply team -
Glossy? Satin? Matt?
Gloss -
Is it more economical to buy dry? Or does it have more to do with longer shelf life?
It is more economical to buy bulk because it cuts out the labor costs of mixing and bottling. It you have a favorite glaze I highly recommend buying in bulk. -
Will this glaze work on redart earthanware claythat has shallow imprinting
SP20 is a lowfire glaze so it will work with redart clay. I recommend doing a test tile to make sure your application isnt too thick as you can get micro bubbles that cause a milky cast with transparent glazes.