951.200H Cerablock 50mm 61x50cm

Suitable as an underlayer for firing, especially in larger, flatbed kilns where a normal kiln shelf is too small. Can also be used for making slumping moulds. Easily cut to size with a sharp craft knife, or carved into for relief work. Has two sides: a semi-smooth side and a side that imparts a textural 'granite' finish to the underside of the glass.

The board is permanent when treated with Colloidal Silica Hardener, otherwise it will soften and deteriorate over time. Kiln wash required e.g: Bullseye Shelf Primer.

Dimensions: 61x50 cm