a method and system are shown for protecting the threaded ends of tubular goods such as oil field tubulars from physical damage and corrosion due to environmental factors . a thread protector is formed of a polymeric body having cylindrical wall portions which engage the threaded ends of the tubular goods . instead of relying upon a separate thread compound or corrosion inhibitor applied to the exposed threads , the polymeric body has incorporated therein a corrosion inhibiting compound , which is integrally molded within the polymeric body as a part of the manufacturing process used to mold the polymeric body . the method also allows used end caps to be recycled into the corrosion resistant end caps of the invention .