of the present invention curing is defined as the copolymerization of the polyfunctional acrylic monomers acrylated urethane oligomers and polymers to form a flexible coating the reaction chemistry of crosslinking through radiation induced polymerizations of for example uv curable coatings is generally known to those skilled in the art in the practice of this invention the uv curable coating is generally formed by but is not restricted to the polymerization of acrylated urethane oligomers the principle components of the embodied coating materials for this application are of two main types these are preferred materials should give a hard but flexible coating with good adhesion to various fabric substrates the coating must have acceptable wetting and flow characteristics to provide for uniform application to fabric a preferred aspect of the invention is the use of acrylated polyurethane resin materials and reactive oligomers urethane resins may be prepared as follows from reactions of isocyanates with compounds containing hydroxyl groups such as alcohols str1 unsaturation may then be readily introduced when r is acrylic allylic vinylic et al for example str2 unsaturation may also be introduced by reacting a hydroxyl modified acrylic or methacrylic monomer with a polyisocyanate to obtain a urethane type resin containing acrylic linkages which can then undergo free radical photopolymerization di isocyanates are frequently used allowing large structures to be formed especially when the chain is lengthened by ethylene oxide derivatives amino alcohols polyesters diamines etc as shown below str4 very large complicated urethane structures may be built up by combinations with acrylics and.