Surface coatings are protective layers applied to various materials to enhance their durability and appearance. These coatings can be made from different substances, such as paints, varnishes, or powders, and are used on surfaces like metal, wood, and plastic. They help prevent corrosion, wear, and damage from environmental factors. In addition to protection, surface coatings can also improve aesthetics by providing color and finish. They are commonly used in industries such as automotive, construction, and electronics. The application methods for these coatings include spraying, brushing, and dipping, depending on the desired outcome and material.