Quote:
Originally Posted by brulaz
Yes, I was wondering about that. This plastic is really shiny and water beads up on it. I could fine sand it, but maybe there is a chemical primer that is better?
Is the original caulk on yours silicone based? Ours was. The new stuff they're using (polyurethane-hybrid) is quite different. More solid feeling, not near as stretchy and seems to stick to just about anything. Apparently this is what they're using on all the new ones.
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If the plastic is really shiny, it isn't polyethylene. It's more than likely good old fashion Plexiglas. It has the same characteristics as F/G (for painting).
I would sand it with 180g paper, put a coat of epoxy primer on it (allow primer to dry 24 hours), quick-sand it with 220G paper then a coat or 2 of LP Marine paint (wet-on-wet). It will protect that panel for 20 years and look great. It can be done with a roller. If you leave the plexi exposed to the Sun, I give it 5 years before it starts cracking (unless you cover the trailer).