Additives for Paints and Coatings are substances which are employed to improve the performance of coatings, paints and adhesives. They may include thickeners leveling agents, wetting agents defoamers/spreaders and anti-foaming agents/ (for use in latex paint) solvents and priming compounds (to improve penetration of primers and adhesives), UV inhibitors (to protect materials from degradation by sunlight) as well as retardants and antifoggants (when applying paint over wood). Once you intend to an article source on powder coating additives, check over here.