An opaque and glossy shade, this classic black melts beautifully for a uniform surface. Prone to devitrification if the surface is dirty when it's fired.
Cold characteristics:
Consistent colour. Although termed an opal due to its almost total lack of light transmission, this is (in terms of its composition) actually a transparent glass.
Working notes:
Low viscosity. Will flow sooner and more than other glasses. In very thin sections the colour may vary from reddish/grey to bluish/grey.
Each Bullseye billet is approximately 127 x 254 x 19mm and weighs about 1.5kg. In kiln casting, the form and particle size of the glass selected can strongly influence the appearance of the finished piece. For maximum clarity, the rule of thumb is to use the largest and thickest forms of glass. Smaller glass particles increase obscurity due to air trapped between the pieces.
Please note the weights of the billets can vary quite a lot so we recommend that you over compensate if you need a specific weight.
All our glass is COE90, Bullseye Glass compatible and suitable for applications such as glass fusing, glass casting and glass slumping (unless otherwise stated in the description).