Warning: 

Crystalline glazes can be runny! We advise testing and always utilizing precautions such as glaze catchers or other sacrificial supports.

We always recommend testing, and dinnerware producers must test compatibility for their own applications. 

Crystalline Instructions:

The Ceramic Shop’s Crystalline series is formulated to fit a range of cone 6 porcelain and stoneware bodies with minimal run or crazing. Thicker applications will run and may require the use of glaze catchers. As always, we recommend testing the fit between this glaze and your desired clay body before larger application.

Apply an even layer of glaze by dipping or thin with water for spraying. Thin applications will go matte and thicker applications will run more. These features can be utilized to help slow the glaze from running, by having a single thin layer near the bottom of the pot. Or using layering to increase or decrease the run in particular areas. 

The thicker parts of this glaze will grow large zinc silicate crystals in the surface of the glaze when fired using the provided firing schedule. This is a basic crystal firing that fires to cone 6 and immediately drops down to approximately cone 04 and is held at temperature as the crystalline structure takes time to grow. The schedule can be adjusted to better fit a clay body or crystal formation
 

These glazes work best on vertical surfaces as they can run when applied thickly and pooling on flat surfaces can cause matting, bubbling, or simply not work.

Crystalline Firing Schedule No. 1 (Basic):

This Basic firing is a good all around schedule that should fit most kilns and applications. The hold in the last segment can be increased or decreased and will affect crystal size. 

Crystalline Firing Schedule No. 2 (Slow Cool)

This firing schedule adds an additional cooling segment which can produce more matte crystallization.