Mayco SW140 SD140 Black Matte Stoneware Glaze Glazes. Mid Fire Cobalt Oxide is a metallic

Cobalt Oxide is a metallic coloring oxide that produces blue colors in glazes and is stable at all firing temperatures (unless in very high percentages where it will be black)

It has a high thermal expansion

red clay body containing both sand and grog

The handle is easily removed for easier transport

Mayco SW140 SD140 Black Matte Stoneware Glaze Glazes. Mid Fire Cobalt Oxide is a metallicMaycos Stoneware Glazes are formulated to be friendly to the user in application and firing. They feature a broad pallet of colors and variety of surfaces. Wide Temperature Range Designed to fire at Cone 6 but can be successfully used at Cone 10, oxidation or reduction. Testing at the higher ranges is recommended. Glaze Compatibility Stoneware glazes work well with each other and other Mayco glazes, providing endless opportunities to combine and layer