ABSTRACT
Epoxy and polyurethane materials have superior performance properties, so they are used for the production of high-quality coatings [1]. Each of the above-mentioned types of polymers has its advantages and disadvantages: epoxies have low shrinkage during hardening, high chemical resistance, hardness, adhesion to polar surfaces, and high dielectric performance, but they are inferior to polyurethane materials in resistance to aromatized fuel, abrasion resistance, and adhesion to aluminum and nonferrous metals. On the other hand, polyurethanes have limited resistance to alkalis and acids and they are inferior to epoxy resin in strength and hardness.
