Dacromet coating peeling cause

The main reasons for Dacromet coating falling off include too thin or too thick or uneven coating, aging failure, external influence, and the influence of the use environment.

Dacromet coating requirements for the substrate: the surface of the substrate is not treated clean, or there are impurities such as oil and rust, which will affect the adhesion of the coating, resulting in the coating falling off.

The coating is too thin or too thick or not uniform: the thickness and uniformity of dacrometer coating have an important influence on its rust prevention performance. If the coating is too thin or uneven, it may expose the metal surface, making it vulnerable to oxidation and rust, thus affecting the anti-rust protection of the coating. The dacromet coating process is also important

Aging failure: If the Dacromet coating is not properly protected during long-term use, aging, cracking, falling off and other phenomena may occur, thus losing the role of anti-rust protection.

External force: When the workpiece is bent by external force, the adhesion ability of dacromet will be reduced, resulting in falling off. This indicates that external forces, such as impact, scratching, etc., may cause the coating to fail.

The impact of the use environment: The use environment of the product may also have an impact on its rust resistance. If the workpiece is in a harsh environment such as high temperature, high humidity, acid and alkali for a long time, it may accelerate its aging, cracking, falling off and other phenomena, resulting in rust spots.

In order to prevent the surface of Dacromet products from rust spots and coating off, we can improve the anti-rust performance of the coating, strengthen the protection of the workpiece, and improve the use environment.