Get your watercraft shipshape before winter storage with Davis Fiberglass Stain Remover. Rid your boat of black streaks and waterline stains on the hull, oils stains on the transom and rust on the stainless steel stanchions with Davis FSR. This unique, stain absorbing gel requires no sanding or compounding and is effective on fiberglass (Gel coat), metal and white painted surfaces. Get your watercraft shipshape before winter storage with Davis Fiberglass Stain Remover. Rid your boat of black streaks and waterline stains on the hull, oils stains on the transom and rust on the stainless steel stanchions with Davis FSR. This unique, stain absorbing gel requires no sanding or compounding and is effective on fiberglass (Gel coat), metal and white painted surfaces. Stain absorbing gel Removes oil, rust, waterline and transom stains Non-abrasive Safe to use on white painted surfaces as well as on gel-coat Requires no sanding or compounding Wipes or rinses off 16 oz. jar