Adhesion problems in powder coating – causes and solutions
Insufficient adhesion of the powder coating can lead to peeling, chipping and poor durability. This not only affects the appearance, but also the protective function of the coating.
Common causes of adhesion problems
- Insufficient surface preparation
- Incorrect choice of powder for the substrate
- Residue of oil, grease or other contaminants
- Missing or incorrect primer
- Faulty baking parameters
How to avoid adhesion problems
To ensure that the powder coating adheres optimally, thorough pre-treatment is essential. This can be done by chemical degreasing, sandblasting or phosphatising. In addition, the right powder should be selected for the respective substrate and the curing parameters must be adhered to exactly.
Discover manual systemsnow Contact us now