Painting (Industrial coating)

Painting: Functional and Aesthetic Protection

The basic principle of painting is to form a protective barrier on the surface of the material. This is done by applying a liquid coating that then dries and cures, creating a tough, durable layer. Depending on the type of material and paint, the paint layer adheres mechanically or chemically to the surface. This layer prevents moisture and oxygen from reaching the underlying material, preventing corrosion and degradation. Paint application can be done by spraying, rolling or dipping, where the paint is evenly distributed. The drying process can range from air to oven curing, depending on the specific requirements of the paint type.

Treatment Options and Variants

There are different painting techniques depending on the desired performance and applications:

• Wet Painting: A liquid paint is applied by spray, roller or brush. This is suitable for both metal and plastic surfaces and offers flexibility in color and texture.
• Anti-corrosion coating: Coatings with special ingredients, such as zinc, provide additional protection against corrosion, especially in humid or marine environments.

Material compatibility

Painting is applicable to a variety of materials, including metals such as steel and aluminum, as well as plastics and composites. For optimal paint adhesion, pre-treatment such as sandblasting or chemical cleaning is often required. For metal surfaces, a primer may be essential to improve corrosion resistance and extend paint life. Plastics often require special adhesion paints to prevent the paint from peeling, given the smooth and non-porous structure of these materials.

Performance Benefits

The benefits of painting go beyond aesthetics. They include:

• Corrosion Protection: Increases the life of metal surfaces by more than 50%, especially in aggressive environments such as marine applications.
• UV Protection: Prevents materials from becoming brittle or discolored by prolonged exposure to sunlight. Tested surfaces withstood up to 1,000 hours of UV exposure without degradation.
• Chemical resistance: Crucial in industrial environments where materials come into contact with solvents, acids or bases.

Applications & Relevance in Industry

Painting is indispensable in many industries. In the automotive industry, coatings are used to protect bodies and parts from weathering and corrosion while improving the aesthetics of vehicles. In the aerospace industry, coatings provide protection against extreme temperatures and pressure variations while meeting strict safety standards. In addition, painting is widely used in the construction industry to extend the life of steel structures, with coating layers protecting buildings from corrosion and weathering.

Customization and Process Optimization

As a contract manufacturer, we offer extensive options for custom painting and coating applications. Customers can choose from a variety of coating thicknesses, from 25 to 150 microns per coat, depending on the application and protection needed. There are also extensive choices of colors and textures, from high gloss to matte, so that each project can be tailored to specific visual and functional requirements. Our process optimization includes automated spray booths and quality control systems to ensure consistency and precision in every application.