| You need different abrasives for plastic. You have to be EXTREMELY careful if you use a machine - especially a rotary - because a little too much heat won't just ruin paint (if it is painted as opposed to molded-in color), it will melt the plastic. Then your're SOL.
Talk to a body shop that repairs plastic bumpers - these are painted - see what they use.
Certainly wet sanding will be safe. But I'm not sure what to recommend to bring the shine back up. Anything by hand should be OK at least as an experiment - (3M fine Cut rubbing Compund is supposed to remove 1200 grit sanding scratches) but be very, very careful if you try it by machine,. |