pinnakattemine

Pinnakattemine is the process of applying a layer to a surface to protect, decorate, or modify its properties. The term is used in Estonian to denote surface coating or finishing. Coatings are applied to metals, concrete, wood, plastics, and composites and serve protective, functional, and aesthetic purposes across a wide range of industries.

Common coating types include paints and varnishes, epoxy or polyurethane systems, powder coatings, and inorganic ceramic or metallic coatings. Application methods vary and can include brushing, rolling, spraying (air- or airless), electrostatic application, dipping, and heat curing or room-temperature curing formulations. Surface preparation is critical and typically involves cleaning, degreasing, rust or oxide removal, mechanical or blast cleaning, and priming to improve adhesion and durability.

Coating performance is evaluated by adhesion, film thickness, hardness, abrasion resistance, chemical and UV stability, and appearance attributes such as gloss and color retention. Standards from ISO, ASTM, and other authorities govern testing and quality assurance. Environmental and safety considerations include volatile organic compounds (VOCs), solvent alternatives, waste handling, and worker protection.

Applications span construction (architectural façades and protective paints), automotive and aerospace finishes, marine coatings, industrial equipment, electronics enclosures, and furniture. Trends in pinnakattemine emphasize low-VOC and waterborne formulations, powder coatings, and advanced coatings with enhanced durability, scratch resistance, or specialized properties such as anti-corrosion, anti-microbial effects, or self-cleaning features.