INERTEX UHF Joint Sealant looks and feels different from other Joint Sealant products. It is smooth and flexible with an exceptionally uniform texture and density. Under the surface is a microscopic structure that makes this remarkable material the strongest, most versatile sealant available today. It is manufactured by a patented process that produces a Uniform and Highly Fibrillated microstructure. It is FDA suitable and comes with a full paper covered self-adhesive backing that makes installation simple.