Unattractive fiberglass stains can be hard to remove and using the wrong product can cause permanent damage to the surface. The versatile Fiberglass Stain Remover (FSR) from Davis Instruments lifts discolored marks and dirt without harming fiberglass. Perfect for boats, RVs and around the house, innovative FSR is a unique, non-abrasive gel designed for difficult-to-clean stainless steel, white-painted and gelcoat surfaces. It removes rust, oil, exhaust, waterline and transom stains, as well as road dirt. It’s also great for shower stalls, bathtubs, patio furniture, outdoor grills, clothing, cloth sails, household fabrics and even steel stanchions and railings. Easy to use, FSR requires no sanding or compounding. It’s simply applied with a brush, sponge or cloth. Since it’s a gel, the product remains on the stained areas and won’t drip. Users just wipe or rinse after a few minutes. Davis recommends cleaning a small test spot first. Davis’ FSR has a suggested retail price of $29.99 for the 67.8 oz. Big Job jug, while a 16 oz. container costs $10.99. Contact Davis Instruments, 3465 Diablo Ave., Hayward, CA 94545. (510) 732-9229; Fax: (510) 732-9188. firstname.lastname@example.org; www.davisnet.com.