New improved Glow Powder Photoluminescent pigment for soft plastic bait making. Make your baits glow and be seen in the deeps and in the dark. Holds up to reheats. For best results, use with transparent, light coloured pigments. Daytime colour is light yellow. Glows for hours with 10-15 minute excite time. Sold by weight. Add 1/8 to 1/4 tsp per cup of plastic. Please Note: Purple has a more subtle glow and is not as bright as the green and blue.