of tetrafluoroethylene with ethylene tfb terpolymer of vinylidenedifluoride hexafluoropropylene and tetrafluoroethylene or blends thereof the fluoropolymeric component may also comprise a multilayer film which has a contact layer of fluoropolymer or non fluoropolymer that is penetrated by the binder and one or more backing layers that are not penetrated by the binder during processing preferably one or more of the backing layers has a melting or softening temperature higher than that of the contact layer so that the backing layer can remain substantially solid during processing examples of some multilayer films include fep ptfe multilayer films tfb ptfe multilayer films pvdf ptfe multilayer films tfb fep multilayer films pvdf pvf multilayer films pfa ptfe multilayer films tfb pfa multilayer films pvdf fep multilayer films and pvc pvdf multilayer films as stated above only a portion of the thickness of the non woven binder is intended for embedment in the fluoropolymeric component the remaining portion of the binder i e that not embedded into the fluoropolymeric component is intended for embedment preferably complete embedment into the non fluoropolymeric component the fluoropolymeric component must possess in the surface to be penetrated by the binder a fluoropolymer or fluoropolymer blend composition with a processing viscosity sufficient to allow embedment of the non woven binder under conditions which will not induce significant attrition of the strength of the fibers in the non woven binder the non fluoropolymeric component may comprise reinforced or unreinforced pvc polyvinylchloride ldpe low density polyethylene hdpe high density polyethylene pet poly ethylene terephthalate pp polypropylene pc polycarbonate abs terapolymer of acrylonitrile butadiene and styrene silicones epoxy resins pei polyether imide polyamide ppo polyphenylene oxide and pbt poly butylene terapthalate the non woven binder may comprise aramids polyesters polyamides polyimides polyamide imides polyvinylalcohols cellulosics.