How paint works - Explain that Stuff!
Jun 27, 2020·Fluorescent pigments added to paints make them glow in the dark. Additives in paint designed for outdoor use can help to make things waterproof and rustproof, protect against frost or sunlight, and keep them free of mold and mildew. ... The pigment chemical might start off as a lump of rock, so it needs to be ground into a very fine powder. It ...