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.