Coghlan's 8040 Seam Seal Waterproofs sewn seams in nylon or other synthetic fabrics Ends leaky seams in tents, rainwear, jackets, backpacks, and more Washable, dry cleanable, colorless, clean, and flexible Waterproofs sewn seams For nylon or other synthetic fabrics Ends leaky seams in tents, rainwear, jackets, backpacks.etc