McNett Seam Sure is a fast drying, water based urethane formula designed for sealing seams on synthetic fabrics and breathable laminates. Use Mc Nett Seam Sure™ Water Based Seam Sealer to seal and waterproof the seams of your tent, tarp, pack and rainwear. Durable, odorless 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. Our unique brush applicator allows the user to easily apply Seam Sure into needle holes, sewn joints, corners and under lap-felled and folded seams.