firing irid glass

petra kaiser


when you work with iridescent glass you do not need to fire higher. Just make sure that you do not fire iridescent glass face down on to another irid glass. They don’t like to fuse together at our fusing temperatures. Also when you have the iridescent glass as your base glass and irid side up you will find that decor glass that you place on top of an irid layer will look  more tack fused than full fused. I prefer light colored iridescent glass the irid side towards the kiln shelf – the light reflections are what I’m after. Have fun and keep experimenting.

petra kaiser –


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