GW CARPET & UPHOLSTERY CLEANER is packed with dirt-targeting surfactants. Surfactants bond to foreign contaminants and lift them from deep within carpet and upholstery fibres. This proven technology works effectively on stubborn stains and dirt inside your vehicle, your RV and your home. . This product breaks down and removes stubborn stains from any indoor/outdoor fabric, upholstery, or carpet safely and completely. GW Upholstery and carpet Cleaner removes stains fast and restores fabric, carpet and upholstery to like-new condition.no stain is tough enough for GW.