The quality of the paint and varnish is determined by the quantity of solids in the liquid and the amount of thinner (diluter). With paints that have a low level of shine (matte or silk), acrylic paint (more flexible and therefore durable) is used which is suitable for the wood industry.

With shiny paints, a polyester base (very durable and does not continue to absorb over the years) and outdoor automobile industry paints, which have a large amount of solids (and are also not diluted).

Automobile paints maintain their shine for several years and do not change or become yellow.