Gerstley Borate Stoneware Gloss Velvets fire true-to-color as a

Velvets fire true-to-color as a Cone 05/06 underglaze or fired to Cone 6

Butted against another glaze

Blend with a zircon opacifier to lighten and/or with Canary Yellow to produce pleasing spring greens or with Zircon Blue to produce intermediate greens and turquoise

then lightens when fired to cone 10 but still maintains its violet shade

efficient dye houses that adhere to the state of California’s EPA regulations around waste water treatment and usage

Gerstley Borate Stoneware Gloss Velvets fire true-to-color as aGerstley Borate is a sodium calcium borate compound used in ceramics as a low and mid range temperature flux. It is essentially a source of boron in glazes, and acts as a melting agent. It also can act somewhat as an opacifier and prevent crazing.