Look around the RV park and you'll see examples of UV radiation damage.
Window frames, vents and corner pieces that have yellowed are abundant. 
These items are still serviceable, but they will eventually become brittle and crack allowing moisture into your RV. 
You can purchase new frames and vents (they are inexpensive parts) or you can remove them give them a good cleaning then spray paint them. They will look as good as new. You should also clean off the old caulking and reapply fresh caulking at this time. If you choose to replace them with new parts, I would still paint them with a high quality paint before replacing them. Paint will stand up better to UV radiation than the PVC type material these are made from. Bringing you great RV ideas every day - Jim Twamley the RV Guy.
8 comments:
I appreciate your method to fix the yellowing but who is calling for the entire RV industry to stop using these and develop a better material to make these from.
Excellent topic. More like this anytime.
One other method is to use AERO 303 spray on all outsude plastic parts. Works great.
And now there are spray paints specifically designed for plastic that won't crack, chip or peel, available at home improvement stores.
The frame around my entry door window and the white on the screen door looked like the picture in this article. I took the frame off, cleaned it and bought white spray paint for plastic. After spraying and replacing the parts, it looked like I had bought new. Made the unit look so much better. It is a very inexpensive fix and easy.
Janice, Louisiana
I agree with the first anonymous comments...who is pressing the RV industry to use better materials?
I AGREE THE RV INDUSTRY SHOULD ATTACK THE PROBLEM.THEY LOOK GOOD WHEN YOU PURCHASE RV, BUT OVER TIME THEYGET YELLOW
The Uniform Plumbing Code requires that PVC pipe extending through the the roof of a house be painted with water base paint (ie latex). Evidendly oil and solvent base paints have a detrimentale effect on PVC.
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