Manufacturer"s description: spray-on waterproofing and uv blocker for all weatherproof textiles including tents, awnings, marquees, rucksacks, panniers and camera bags. Two weeks uv exposure can halve the tear length of tents and one application of tent & gear solarproof will double the fabric"s life. Always apply nikwax tent & gear solarproof to new or used tents and equipment to keep items in perfect water-repellent condition, and protect against uv degradation, allowing them to work better for longer. Product description: nikwax tent & gear solarproof is spray-on waterproofing and uv blocker for tents and all weatherproof fabrics. Nikwax tent & gear solarproof adds water repellency, reduces colour fade and maintains fabric strength.