Blue/Violet Glow Powder-1/2oz.

Can be used in glass blowing, fusing, casting, lamp working and even borosilicate artwork.

A small amount goes a very long way.

Glow in the dark Powder 1/2oz.

Glows in the dark 4-6 hrs.

Excitation wave length is 250nm-425nm / 25-35 micron