McNett Seamsure 2oz is a fast-drying seam sealer that forms an almost invisible clear film. The water-based urethane formula is safe to use on all kinds of gear. Ideal for sealing tents, rain wear, tarps and backpacks. It is super easy to apply. Grab a tube and make sure all your gear is water proof ready for your next adventure so that spot of rain or even storm won't get all your stuff soaked.