[DutchmenSport]

I'm not sure exactly what you have, but would something like this work?
Click here.

One thing I've learned after completely remodeling 4 houses and hundreds of home repair projects, if you find the product that works, but the color is wrong, you can always spray paint it to match anything you want. Plastic or wood wall light switch face plates, to a claw foot bath tub. Original Rust-o-lium (oil based) spray paint works fantastic on plastics ... especially those travel trailer A-frame vinyl propane tank covers and plastic hatch doors on campers!