Review on Top-rated GEAR AID Seam Grip SIL Silicone Sealant: Perfect for Silnylon Tents and Tarps by Jerry Chembola

Barely enough for a basic 2 man tent. It's very easy to apply, but I found it easier to use my finger than the brush that came with it. If you have a large two-person tent or more, you will need multiple tubes. You also need to be careful not to rub it after it's applied and dried. While I haven't had any issues with it yet, I can see how it can wear down over time with normal wear and tear. However, this prevented water from entering the tent and served its purpose.