Yellow Thermochromic Pigment (25°C / 77°F)

This powder is very bright yellow in temperatures under 25°C / 77°F. It is fine and fluffy, with such a rich color that it looks very similar to pollen. Under a black light it will really POP out at you in the same way a neon or fluorescent pigment would.

When the powder comes in direct contact with temperatures above 25°C / 77°F it will turn white, or what some would call "colorless". If you mix this pigment into a clear medium in a low enough ratio and apply it thin enough, its white or "colorless" state can actually appear transparent, which makes for very cool transitions!

A few cool uses we've found with it are:

• Mix it with BLUE paint. Yellow and blue together will make green. However, when it reaches temperatures warmer than 25°C / 77°F the paint will turn blue!

• Mix it with RED paint. Yellow and red together will make orange. When it reaches the transition point the paint will turn red!

• Mix it with CLEAR paint to create a yellow paint you can apply over a secret message, then hand it to your buddy without worrying about anyone seeing it. When they're ready to decode it, they can press it between their hands to reveal what is hidden beneath!