Water-based paints are formulated with resins which have a different chemical composition than those used in conventional (solvent-based) paint. The acrylic chemistry is very similar to that used in acrylic plastic sheet and moulding powder, with well known applications, including outdoor illuminated signs, street light covers and rear-light covers.

Solvents are substances intended for dissolving, diluting or separating products ? in this instance paints and varnishes. Industrial paint applications are often limited to organic solvents. In DIY paints, solvents are still found relatively often in paints for wood surfaces.