Paints

Paints are a type of mixture called a colloid. They contain several components, including the pigment, a solvent and a binding medium. Pigments are coloured substances used in paint.

Paints are used to decorate surfaces , protect them from damage or to protect them from dirt.

Paints contain these ingredients:

• a pigment - gives the paint its colour
• a binding medium - a liquid polymer that hardens to form a continuous layer when the paint dries
• a solvent - dissolves the binding medium and makes the paint more fluid.

emultion paints

Emulsion paints are water-based. Their solvent is water and they dry when the water evaporates.

oil paints

The pigments in oil paints are dispersed in oil, which may itself be dissolved in a solvent.

The solvent evaporates away when…