I recently cleaned off some stubborn stains on my stitch-N-glue using West Marine's "Fiberglass Stain Remover." It is basically oxalic acid, and worked quite well. The salesmen told me I should use some teflon boat polish afterwards to seal up my porous paint job to prevent future stains, perhaps with an intermediate step of Starbrite "rubbing compound" to "remove scratches" and residual ozxidation, scuff marks and other stains. I've already done the first step (oxalic acid), and will apply rubbing compound and teflon polish in another day or two, unless there is some reason not to. Are these things OK on painted, glass, plywood boats? Does anyone have experience with either the rubbing compound or teflon polish? Just don't want to do anything that will eat through fiberglass, for example, or do other harm that a salesperson more familiar with fiberglass motorboats, for example, might not be aware of.

Thanks, Dave