The production o color coated plate provides a new type of material for the construction, household appliances, electrical, vehicle and other industries. But in the production, there are often some shrinkage problems, which have a certain impact on the
product. Here is how to solve this problem.
There are three ways to eliminate shrinkage in color coated plate
1、 The curing time should be much longer than leveling time;
2、 The leveling time is longer than the defoaming time;
3、 Control the surface tension of the coating on the color coated plate, so that the surface tension of the coating is less than that of the substrate, and even less than that of some basic pollutants.
The above three problems can be solved
by mastering the three problems. In addition, attention should be paid to the details of various asp