Sure-Thane stock CUSS is a one-component, permanently flexible, polyurethane adhesive sealer.Sure-Thane cures in the presence of atmospheric moisture and oxygen to produce a high strength adhesive that can replace rivets, welds and other fasteners. Sure-Thane has been specifically developed for use in the repair and construction of trailers, trucks, buses, trains, RV utility bodies, van conversions and specialty vehicles. Bonds to all primed or painted metals and most automotive plastics. Duplicating factory look on standing seams, cosmetic seams, truck bed seams, tooled door skin seams, floor pan seams, core support seams and any other application in which a non-sag cosmetic seam sealer is required.