Superior results on all outdoor fabrics such as nylon, polyester and canvas; adds or restores water repellency. Also for use as a sealer for zippers. Easy to apply. No yellowing of original color or stiffening of fabric when dry. Resists mold growth, stains and soiling. Ideal for waterproofing horse blankets and pet apparel. Biodegradable. No fluorocarbons, harmful solvents or alcohols.