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Old 10-14-2017, 01:00 PM
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Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
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No. The trouble with cad sel reds is the sulfur. Cadmium is colorless in glass without the sulfur. Remember it's a cadmium-sulfo selenium glass. It has to have all three and one is a pure sociopath. There's more of it than you need in Cadmium sulfide and it really is better made with some of the cad sulfide and some cad oxide to get the cadmium level right but it usually isn't done that way. As Chuck Savoie used to say, "sulfur is not your friend in a red glass.". Taking the glass down in temperature does help but obviously makes it more viscous. Go too far and the valence switches and it turns brown. It's not a cooperative glass and even worse if you are having to use someone else's cullet. I picked bubbles from mine in large pieces.
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