FSR is a unique stain absorbing gel that is ideal for quickly removing a variety of stains from fiberglass surfaces such as oil, rust, exhaust, waterline and transom stains. Excellent for removing road soil from trailered boats and recreational vehicles and for household cleaning of Fiberglass shower stalls. Its non-abrasive quality means that it's safe to use on white painted surfaces as well as on gel-coat.
Requires no sanding or compounding. Simply apply with a brush, sponge or cloth. Wait a few minutes and then wipe off or rinse. Comes in a 16 fl oz (0.47 liter) container.