Directions: If surface to be waterproofed is dirty or stained, clean it with Star brite Sail & Canvas Cleaner. Fabric to be treated must be dry. Apply enough Waterproofing with sprayer, brush or sponge to thoroughly wet top surface. Take care to avoid overspray, drips or penetration onto surfaces not being treated. Allow treated item to dry for 6 hours before using. Do not fold or store treated item until dry. Use only in a well ventilated area.If surface to be waterproofed is dirty or stained, clean it with Star brite Sail & Canvas Cleaner. Fabric to be treated must be dry. Apply enough Waterproofing with sprayer, brush or sponge to thoroughly wet top surface. Take care to avoid overspray, drips or penetration onto surfaces not being treated. Allow treated item to dry for 6 hours before using. Do not fold or store treated item until dry. Use only in a well ventilated area.22 oz covers – 80 square feet coverage (* Coverage may vary slightly depending upon amount of product applied per square foot). 1 Gallon - 465 square feet of coverage (Coverage may vary slightly depending upon amount of product applied per square foot). Great for use on new fabrics, greatly extending their service life by providing an additional repellant barrier to moisture and a sun shield to damaging UV rays. Does not change the breathabilty, color, or feel of fabric. Waterproofing + UV & stain protector for boat covers, car covers, bimini tops, sail covers, tents, jackets, backpacks, boots, awnings, canvas, canopy, sunbrella & patio covers.Item Weight: 1.34 Pounds. Brand: STAR BRITE. Size: 22 Oz. Color: 22 Oz. Date First Available: August 26, 2013. International Shipping: This item is not eligible for international shipping. Learn More. Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues. Best Sellers Rank: #530 in Sports & Outdoors. Customer Reviews: 4.4 out of 5 stars 1,888 ratings 4.4 out of 5 stars. : B00EXIVVUI. Manufacturer Part Number: ?081922SS. Item model number: ?081922SS. Country of Origin: ?USA. Product Dimensions: ?2.5 x 4 x 11.25 inches. Item Weight: ?1.34 pounds. Model: ?Heavy Duty Waterproofer. Brand: ?STAR BRITE. Manufacturer: ?Star brite.