Heavy-Duty Rubbing Compounds
Searching out the best fast-cut compounds for serious oxidation.
Gelcoat provides a fiberglass boat with a hard, water-resistant protective shell. When new, it’s polished and waxed to a bright shine, but after a few years of facing the elements—especially damaging UV rays—gelcoat will begin to oxidize and turn into a dull, chalky film on the surface. There are a few ways to remedy an oxidation problem (see “Tips & Techniques”), but for this article, we focused on coarse and medium-coarse rubbing compounds, which can be buffed on to remove the chalky layer and fine scratches. The tests evaluated ease of use, ability to remove oxidation and scratches, and whether they left swirl marks; testers also considered price, availability, and eco-friendliness.