In the paint industry the main processes concern the composition an the standardisation of the paints. The majority of the paint industries work on the area of standardisation. The production process is usually non-continuous and it is realised in batch reactors. Many of the paint plants produce also solvents, substrates, paint and varnish cleaners, various types of insulation, as well as other adhesive materials.

The main sources of pollution that are recorded in this industrial sector are gases emissions (VOCs, volatile organic materials) that result from the storage tanks and equipment, as well as liquid waste which is created from the equipment cleaning after each batch. It is essential to be point that the paint industry uses important quantities of toxic chemical substances.