Spray paint for plastic
I painted 2 of my white, plastic-y dorade vents with that Krylon spray paint for plastics. These dorades were cracked and chalky and yellowed, just like my rub rail. Thought I'd test the paint on the dorades before committing to the rub rail job. It worked great, and has held up just fine, so far for a year. Looks very nice. I sanded the surface down really well first, taped off and covered everything within 4 feet with plastic to protect from overspray, then sprayed numerous coats, on a calm morning. I'm so happy with the results I plan on doing the rub rails next. Sure will cure that chalky streaking problem - but the taping off is really the time-consuming part of the job.