Seam Sealant is a fast drying, water based urethane formula designed for sewn seams on synthetic fabrics and breathable laminates. It has a unique brush tip applicator to work into needle holes, sewn joints, corners and under lap-felled seams. Freeze/thaw stable and washable/dry-cleanable. It is ideal for tents, packs, rainwear, garments and tarps.