We used this on our tent and it's a good thing we did! We went camping and wouldn't you know, it rained on our second day. The water just beaded up and rolled off of our tent. We stayed dry, as did our sleeping bags and supplies. We had a great time and my husband was so happy, that he went out and purchased more, after our trip. We have more tents, different sizes, and he wants to waterproof all of our camping gear. This really works and is well worth buying. We also used some on our patio set, before placing it out on the deck. I am extremely happy with the results. It's a great investment to protect your outdoor furniture, backpacks, hammock, umbrellas, etc. If you haven't tried it yet, you should. You'll be glad that you did! [This review was collected as part of a promotion.]