Photochromic Powder
Photochromic powder is a designed powder to change color when exposed to a UV light source, but reacts best to direct sunlight. Color changes within seconds of exposure and will stay changed for a few minutes after exposed.
Photochromic powder is a designed powder to change color when exposed to a UV light source, but reacts best to direct sunlight. Color changes within seconds of exposure and will stay changed for a few minutes after exposed.