tubachris85x
Master Member
What kind of plastic? What are you needing to seal on plastics parts. If you mean for joints, seams, scratches etc. Bondo glazing putty works great.
Or is this a porous type plastic?
Im not too sure to be honest. It's motocross plastic protective wear. We have been trying to seal it because the stuff doesn't hold paint at all. We took it to an auto body shop and they told us this type of plastic is similar to human skin, in that, it's releasing "stuff" which prevents it from holding paint