Stimex says about the Seamsealer Flacon Waterproof 80ml
Stimex Seam Sealer prevents and repairs seams that permeat water quickly and simply. This seam sealant is ideal for water proofing seams in cotton and nylon tents, backpacks, rain clothes, sun awnings, cover sails, etc. The cap of the bottle has a handy brush to apply the seam sealer.