Flaking Paint Job
I’m using polycarbonate paint for my car bodies, but I’m still having trouble with it flaking off. Why won’t it stick?
When the body is prepared and painted correctly, you shouldn’t run into problems with the paint flaking off. As far as prepping the body, you should always lightly scuff it with a Scotch-brite pad to give the paint a surface to stick to and clean it well with soap and water to remove debris like oil and moldrelease residue. This prep will allow the paint to adhere with a strong bond and eliminate flaking later on. And when you paint the body, it’s important to use several thin coats of paint with adequate drying time in between coats. Thin coats dry more evenly and cure with better adhesion than using thick coats, resulting in more sticking power and less potential for flaking.
Thoroughly washing your body with soap and water after scuffing will ensure that the paint bonds strongly.