McNett Seam Grip® Style # 10510. Seam Grip is amazing. It’s an award-winning repair adhesive that can keep you dry in any weather. It permanently seals the seams on your tent, pack and rainwear. It can repair rips, tears and holes in your gear, too. It’s your all-purpose liquid tool in a tube. Seam Grip is part of a comprehensive line of Care and Repair products from Gear Aid. With Gear Aid, anyone can be a master of gear repair. Ideal for on uncoated and polyurethane coated fabrics.