Seam sealing with Seam Grip SIL is the best way to keep moisture out when using a silnylon (silicone-nylon) tent. Previously known as SilNet, this clear sealant dries to a flexible rubber that works on all silicone treated gear including nylon tarps and ultralight backpacks. A single 1.5 oz tube can seal up to 24 ft of seams. Fast and easy to use, it&';s also handy for pinhole repairs and small tears. When you need to waterproof a silnylon tent only a silicone sealant will work, because silicone will only adhere to silicone. So, treat gear right and seal out the weather with Seam Grip SIL. Compatible - Bonds to silicone treated fabrics to prevent water from seeping through seams Waterproof - Provides a water-tight seal that won&';t peel or crack over time, keeping you warm and dry Long-lasting - Rubber sealant seals seams and patches pinhole leaks for repairs that last for years Flexible - Cures to an elastic, rubber seal that flexes and stretches with high performance gear Weather-resistant - Tough formula is not affected by extreme heat or cold