Bevonás

Bevonás is the process of applying a material onto the surface of a substrate to create a protective, decorative or functional layer. The coating can modify properties such as corrosion resistance, wear resistance, hardness, chemical resistance, appearance, or electrical and thermal behavior. Bevonások are used on metals, plastics and ceramics and can form continuous films or patterned layers. Thickness ranges from nanometers to hundreds of micrometers, depending on method and purpose.

Coating types are commonly categorized as organic coatings (polymer-based films such as paints, varnishes and powder coatings), inorganic coatings (oxide, ceramic and silicate layers), metallic coatings (galvanized, nickel, chromium, tin, aluminum) and composite coatings (multilayer systems).

Applications methods include painting, powder coating, electroplating and hot-dip galvanizing for metallic coatings; anodizing for aluminum; electrostatic spray; dip coating; and thin-film deposition techniques such as chemical vapor deposition (CVD) and physical vapor deposition (PVD).

Key considerations include adhesion, uniformity, thickness control, porosity and durability under environmental exposure. Quality is assessed by adhesion tests, thickness measurements, hardness, abrasion resistance and corrosion tests such as salt spray.

Bevonások provide decorative finishes and essential protection in industries such as automotive, construction, electronics, packaging and aerospace, as well as in consumer goods and medical devices.