Industrial painters apply paints with sprayers and other technology using a variety of techniques. The difference between industrial painting and regular painting is that painters will paint many surfaces with considerations not found in normal environments, such as the exteriors of homes and buildings. For example, industrial painters who apply paints to metal surfaces in factories must be highly concerned with the paint's properties, such as flammability and performance under high temperatures.
According to the U.S. Small Business Administration (SBA), the preparation for a surface that will be painted is called the substrate. Industrial painters must ensure that they properly clean the substrate. The North Carolina Division of Pollution Prevention and Environmental Assistance found that "as high as 80 percent or more of all coating adhesion failures can be directly attributed to improper surface preparation." Readers can refer to the "Industrial Painting & Coating" document at the SBA website for more tips on complying with Environmental Protection Agency requirements for painting and preventing pollution.
Sometimes professional painters have to use a solvent to thin out paint or clean up a coat of paint. Painters have to choose the right type of solvent for the paint because "solvents differ in what they can dissolve, odor and flammability," according to Haas and Rohm's Paint Quality Institute. For example, mineral spirits are the right solvent for most paints with an oil or alkyd base and for varnishes and primers.
Industrial painters choose the right type of spray gun or other spraying device based on the type of paint finish desired and on the type of paint and the type of substrate. Painters can choose from many types of sprayers. Modern technology allows painters to choose how much pressure in pounds per square inch (PSI) to apply to the paint sprayer. When paint is sprayed effectively, the painters achieve an even design on the substrate.