GEL FSR Xtreme Fiberglass Stain Remover - 16 ozPowerful no-sanding fiberglass stain remover for rust, tannins, and waterline stains. Designed for use on boats and RVs.Features: POWERFUL STAIN REMOVAL - Effectively removes rust, tannic, and waterline stains from fiberglass surfaces NO SANDING REQUIRED - Cleans deep stains without abrasive pads or surface damage THICK GEL FORMULA - Clings to vertical and curved surfaces for better stain-lifting performance FAST-ACTING RESULTS - Activates in minutes to break down stubborn discoloration SURFACE-SAFE CLEANER - Designed for use on fiberglass, gelcoat, and painted finishes EASY APPLICATION - Apply with a cloth, sponge, or brush for controlled cleaning PROFESSIONAL-GRADE FORMULA - Trusted cleaning power for marine and recreational use REDUCES SCRUBBING EFFORT - Lifts stains chemically to minimize manual labor IDEAL FOR WATERLINE STAINS - Targets discoloration caused by prolonged water exposure PREPARES SURFACE FOR PROTECTION - Leaves fiberglass ready for polish, wax, or ceramic coating Directions:Shake well before use. Apply with a cloth, sponge, or brush to the stained surface. Allow to activate for 23 minutes. Rinse with fresh water. Stubborn stains may require a second application. For best results, use when the temperature is above 50F. Wear rubber gloves during application. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No