Micro Cerulean

• Micro is short for micro-crystalline which is a glaze that develops small crystallization from the zinc and silica during the cooling process. These glazes can be fired from cones 5-10, but we suggest a hot cone 6 with a fast cool in a loosely packed kiln for optimum crystallization.

• While Mayco’s Stoneware Crystal glazes contain glass frit in the jar, Micros do not contain a glass crystal, rather, the effect is created by the glaze itself during the firing process. Tips for Crystals

• Crystal glazes are designed to expand upon the surface with dazzling bursts of color.

• Crystals will settle to the bottom of the jar and will need thorough mixing prior to initial use and in between each coat.

• Apply two to three coats using a fan brush. While the glaze is wet, use your brush to redistribute crystals to achieve balanced coverage. Over-application of the crystals can cause pinholing or running.

• Crystals can create movement. Avoid having a heavy concentration of crystals near the bottom of your piece.

Cone 6 oxidation (first image): Micro Cerulean is a glossy, translucent, medium blue glaze with an aqua float that breaks over texture. Blooms of shimmering blue micro-crystallisation will develop during the firing process.

Cone 10 reduction (second image): Glaze turns to a variegated grey/blue. 

This glaze is dinnerware safe when used according to manufacturer’s directions.