Use Seam Sure™ Water Based Seam Sealer to seal and waterproof the seams of your tent, tarp, pack and rainwear. Durable, odourless and flexible, Seam Sure is perfect for family-sized tents. Plus, its water-based formula is good for the earth. Ideal for sealing seams on polyurethane coated fabrics.Seam Sure flexes with the fabric insuring waterproofing even in cold temperatures and high wind conditions. The unique brush applicator allows the user to easily apply Seam Sure into needle holes, sewn joints, corners and under lap-felled and folded seams. Fast drying, super easy to use Odourless, water-based urethane formula Dries clear, stays flexible Works on tents, tarps, packs and rainwear