Restore polyurethane (PU) coating to like-new condition with Gear Aid's Seam Grip TF Tent Fabric Sealant 2-Pack. Previously known as Tent Sure, this clear sealant makes tent waterproofing hassle-free with its built-in foam applicator brush. Over time, the protective waterproofing on a tent floor, rain fly, or tarp wears out and begins to flake off. Easily apply Seam Grip TF Tent Fabric Sealant to the fabric and treat up to 85 square feet of material to prevent gear from leaking. When a rainfly gets sticky or backpacks start delaminating, make them perform again with Gear Aid's Seam Grip TF Tent Fabric Sealant.