Reply To: Does Wissmach luminescent behave the same as iridescent?

[wordana]

My experience is that Wissmach’s lums do not give the same result as irid. I have not specifically done irid on irid (or rather, lum on lum), but the lums will most often burn off at fusing temps if they are face up. Face down on the kiln shelf is a nice result. Capped, a lot of the intensity of the luminescence is lost. My guess is the result will not be what you are hoping for.