Endless Facts, One Snippet at a Time
The Chemistry of Paints and Colors
- Pigments give paint its color by absorbing some wavelengths of light and reflecting others.
- Binders like acrylics or oils hold pigment particles together and make paint stick to surfaces.
- Solvents keep paint liquid in the can but evaporate as it dries, leaving a solid film.
- Titanium dioxide is the most common white pigment, prized for its brightness and opacity.
- Natural pigments like ochre and indigo have been used for thousands of years in art and decoration.
- Synthetic dyes expanded the color palette, giving us brighter and longer-lasting paints.
- Additives control flow, drying speed, and resistance to mold or UV damage.
- Color perception depends on both chemistry and physics—light interacts with molecules to create what we see.
- Metal-based pigments like cobalt blue or cadmium red produce vivid but sometimes toxic colors.
- Eco-friendly paints now replace harsh solvents with water-based or plant-derived alternatives.