Pulverlakker

Pulverlakker, also known as powder coating, is a type of coating that is applied as a free-flowing, dry powder. This powder is typically applied electrostatically and is then cured under heat to form a hard, durable finish. The process involves several steps: preparation of the substrate, application of the powder, curing, and optional post-treatment.

The powder used in pulverlakker is a mixture of polymer resin and pigments. The resin can be thermoplastic or thermosetting, and the pigments provide the desired color and finish. The powder is applied using an electrostatic spray gun, which charges the particles and causes them to adhere to the substrate.

Curing is the process of heating the coated object to a temperature that causes the powder to melt and flow, forming a continuous film. This temperature varies depending on the type of resin used, but is typically between 150°C and 200°C. After curing, the object is allowed to cool before any post-treatment, such as sanding or polishing, is performed.

Pulverlakker is known for its durability, resistance to chemicals and corrosion, and the wide range of colors and finishes available. It is commonly used in industries such as automotive, aerospace, and electronics, as well as for decorative purposes. The process is also environmentally friendly, as it does not require the use of solvents or water, and the powder can be recycled.