thermochromic powder

A batch of injection-molded cups comes off the line. They're bright red at room temperature. Pour hot coffee in, and they turn transparent, revealing a printed message underneath. That's not a coating trick or a printed effect—that's thermochromic pigment responding to a physical st...

Mixing thermochromic powder into epoxy resin lets you build surfaces that visibly shift color in response to heat — a functional effect increasingly specified in craft art, interactive floor coatings, and novelty consumer goods. Done correctly, thermal pigment powder disper...