Photochromic pigment and powder changes colour in the sun and under certain levels of UV exposure. The product turns from an almost colourless powder into vibrant colours if it is exposed to the ultraviolet rays. Once the direct UV source is removed from the product, it reverses back to colourless again. 

This product can be used for a number of applications including coatings, printing and plastic injection moulding. Due to the flexibility of photochromic powder it can be applied to a range of substrates such as ceramics, Resin, glass, wood, Clay, paper, board, metals, plastics and fabric.

For best results pour an initial layer with UV pigment powder, let it set then pour a second layer, this way you aren't using up a lot of UV sensitive powder in the rest of the project that wont be seen.