Thermochromatic Pigment - Blue (20g)

• Thermochromatic Pigment - Blue (20g)
• Is Blue at Room Temperature
• Turns Clear at Around 92 °F (33 °C)
• Can be mixed with paint, glue, resin, Polymorph, Sugru, etc.

The Thermochromatic Pigment - Blue (20g) is a color-changing pigment and can be implemented in a number of ways. This particular pigment is a Leuco dye type pigment which is made up of a mixture of Leuco dyes, weak acids and salts microencapsulated in a polymer.

This very fine, colored powder changes to a clear powder when you heat it to about 92 °F (33°C). This is really cool for a lot of reasons. You can mix this pigment with paint to create thermochromatic paint for craft projects or to make temperature indicators. It mixes with Sugru and Polymorph as well, rendering them both thermochromatic.

Use a controllable electric heating source and you could even build a thermochromatic display! This pigment comes in a 20g bag, which is more than enough to play with and just enough for a good-sized project.