Photochromic Pigment (Blue)

Description

Color:Blue This is a very fine, colored powder that changes to a specific color when it is exposed to UV or sunlight. This is really cool for a lot of reasons. You can mix this pigment with paint to create UV sensitive paint for craft projects or to make light sensors. This pigment comes in a 20g bag, which is more than enough to play with and just enough for a good sized project (depending on what you're doing with it). Careful not to overheat the pigment as temperatures over 200°C can cause irreversible damage.