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Oil Slick develops a mix of dark blue, green, and purple tones following a proper raku firing. Due to the unpredictable nature of this firing technique, results will vary with every firing.
Mayco Raku glazes are designed to develop beautiful metallic lusters and crackle patterns when fired according to raku firing processes. Raku glazes will not produce the same results in a typical electric firing – must encounter a raku environment. Due to the unpredictable nature of this firing technique, results will vary with every firing.
Raku glazes are formulated specifically for the raku firing process. In the raku process, pieces are removed from the kiln after standard firing and then put into a container filled with flammable material that burns and causes a reduction atmosphere (meaning there is no oxygen). When fired in this manner, these raku glazes create the vibrant colors and metallic look of raku pottery.
Note that raku glazes do not form a full glass, and are therefore not food safe or watertight. Use on clay designed specifically for Raku, such as our Pipenburg Raku, Raku, Raku II.
To apply: Brush two to three coats on bisqueware (pottery that has been fired to cone 08 - 06) or dip for three to five seconds. If brushing, make sure to alternate the direction of the brush strokes between each coat for a smooth, even application, and let dry between coats.