In our daily life, it’s common to see the coatings of plastic products flake off. Now, Let’s find out what are the causes and how to avoid such a problem.
The release agent is used for the small draft angel. So the resulting coating peeling defects are very common. A large amount of release agent containing silicone oil remains on the product, resulting in very bad quality.
Generally, painting operations are not performed for PS, PP, POM, etc. , while PP, etc. can be painted after pre-treatment.
For PS, especially GPPS, the solvent is prone to network silicon cracks, So the solvent should be carefully selected. Another is to set the molding conditions in the direction of no residual stress on the product.
As for the solutions for the coating flaking of plastic products, do you have any other better suggestions? If you do have, please leave your comment and let’s talk about it futher.
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