How to solve the film defects caused by poor electro-coating?

The defects of the coating film caused by poor electrophoretic coating include particles, shrinkage cavities, pinholes, insufficient film thickness, excessive thickness, redissolution, secondary flow marks, etc.). Due to the uniqueness of the electrophoretic coating method, Although the defects of the paint film produced are the same as those of the general paint film, their etiology and prevention methods are different, and some diseases are unique to electrophoretic coating. This section includes N 1 poor swimming permeability, N 2 pigment _{sedimentation} , _N 2 ₃ Wet stains, N ₄ dry stains, N ₆ segment marks, N ₆ breakdown coating film, N ₇ dry spots and N ₈ water traces, etc.