Bullseye Sheet Glass: 3mm Red Opal Striker 0124.30

3mm Bullseye Opalescent Sheet Glass - Red Striker. 

This is a strong colour, complimented by either similar tones for an eye-catching design or softer colours to calm the piece. This colour is a striker, so matures to its target colour on firing.

Contains: 

Selenium, Sulphur

May react with: 

Copper, Lead, Silver

Experiment with reactive glasses.  Here the dark interface reaction between the silver foil and the red opal, capped with clear, creates interest in the piece:

Cold characteristics:  

Colour variations common from red-orange to terracotta. Frequently lightly streaked and with yellow mottling on back of single-rolled sheet.

Working notes: 

A cadmium/selenium glass. Can react with lead-bearing glasses or overglazes. Possible reactions with 1311, 1215.
Much colour variation typical upon firing. If specific colour is important, always test before beginning project. Use glasses from same dates. Do not assume that sheets of the same colour when cold will fire identically.

This style is not suitable for kilncasting because it can opalise and/or become incompatible when held at high temperatures for an extended period.