3320 polish, wax or what?

[Egon]

Get some fiberglass boat or RV polish. Should work.

Park it in the garage and do not use will also work!

Use it and let the rain clean it off!

 

[orlo]

Look for pure Simonize furniture wax. It's pure Carnuba wax - No abrasives. Works well on anything you don't want to use abrasive on.