SEAM GRIP+FC is a water-based product for sealing seams of polyurethane-loaded fabrics that are intended to be completely waterproof. It is supplied in a 60 ml plastic bottle with a brush applicator. It allows to form a continuous thin layer of polyurethane rubber for impregnating threads, seam sealing (even in sewing corners) and sealing places punctured by a sewing needle. It allows to achieve 100% waterproof seams on all types of fabrics (including applied) and all types of breathable membranes. It is suitable for use in both production and repair of clothing, footwear, tents, boat bags, etc. The formed film is matt, almost invisible, time to drying and complete polymerization at room temperature about 2 hours. Cannot be used to seal cracks. Instructions for use. If a thicker layer is desired, repeat application after the previous layer has completely dried. Approximate polymerization time is about 2 hours. Before folding up the tent where we have sealed the seams, we check that the sealer is no longer sticky.