Pigments are substances used to modify materials' colour. It is a raw material mainly used for paints production, but which also applies to other fields, such as plastics, synthetic fibers, printing inks, rubbers and cosmetics productions. Paints are widespread chemical products that are used to protect a large variety of surfaces. They are made up of a binder (able to grant adhesive characteristics), a solvent, (that keeps the paint flowing) and a plasticizer, (that improves the elastic properties of the paint).