Why is the coat easy to peeling? How to solve it?

During the coating construction process, coating defects will occur due to various reasons. Today we mainly talk about coating peeling and coating bleeding.

What about peeling off? In fact, it is very common in life, see the picture below

The most basic thing to apply a coating on the surface of various objects is to play a protective role. The peeling off of the coating naturally has no protective effect. What is the principle of coating peeling?

Coating peeling refers to the loss of adhesion between the coating and the substrate or another coating. Generally, the coating adhesion test will be done during the construction or production of raw materials.

In general, there are two reasons for the peeling of the coating: surface pollution and surface condensation.

So how to prevent these two situations? Start by making sure the surface is clean, dry and free of any contamination. Surfaces are treated with appropriate materials. In addition, the construction process is better to follow the requirements of the manual and pay attention to various detailed processes to carry out the construction.

In fact, many construction engineers know that they need to pay attention to details, but because of some unpredictable factors, the coating peels off, so it is necessary to repair the coating. So how to fix it?

First, according to the degree of spalling, remove defects and perform appropriate surface treatment. Again, use the correct paint system according to the paint manufacturer's recommendations.