First, any idea how to prevent this? Products?





Have a mini-van that has a severe case. Anybody had any luck clearing this up?

Try some plastic polish.........


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Waxing them too should help prevent oxidation too.

sand them with the finest sandpaper you can get.... prefer 1200 or better... after that coat them with clear spray paint... make sure first the paint is compatible with plastics.... works on jeep soft top windows too... do a trial run on a small patch first