Davis FSR Fiberglass Stain Remover Gel - 2 LiterDavis Fiberglass Stain Remover is a unique stain absorbing gel that is ideal for removing oil, rust, exhaust, waterline and transom stains. Its non-abrasive quality makes it safe to use on white painted surfaces as well as on gel-coat. Use FSR anywhere fiberglass stains may pop up including shower stalls and furniture. Can also be used to remove road soil from trailered boats and recreational vehicles. Davis Fiberglass Stain Remover is easy to use and doesn't require any sanding or compounding-simply apply, wait, then rinse off.Features: 2 Liter (67.8 fl oz) bottle; Non-abrasive, safe on most surfaces; Simple application with a brush, sponge, or cloth; Removes oil, rust, exhaust, waterline, and transom stains; How to Use Davis Fiberglass Stain Remover Gel Shake well before using.; Test a small area first to be sure FSR will not damage finish.; Apply with cloth, brush or sponge.; Allow to stand for a few minutes.; Wipe off or rinse with water. ; Repeat for stubborn stains;