Deep Red Opal Stringer

Deep Red Opal Stringers are quite the divas of the glass world; they don't take well to the heat of kilncasting, much like ice cream in the sun. They might throw a fit and become incompatible if you push them beyond their comfort zone, which is outlined in the compatibility test parameters. It's best to keep an eye on them and do a test run if you're planning to turn up the heat.