The thickness required and the method of application need to be considered. As a general rule it is most cost effective to specify the best quality materials and adequately supervise the application. Maintenance costs should then be less than if lower quality materials and inadequate supervision are employed. Paints are comprised of four main ingredients, each contributing particular properties to the surface coating system of which they are a part. They include alkyds, vinyls, acrylics, epoxies, polyesters, silicones, fluorocarbons, polyurethanes and others.
Solvents evaporate causing the paint to dry.
Powder coatings are dry powder paints that do not contain solvents. They therefore require special application methods and equipment. Maintenance requirements and service life must be considered. The Painting of Buildings.