Abstract: A method for deploying an epoxy-based coating on a surface of an article, the method comprising the steps of: (a) providing an article including a metallic surface to be coated, the metallic surface presenting itself as a substrate; (b) preparing a self-sustaining, cloth-like, flexible, non-woven fibrillated PTFE preform with voids therein; (c) conforming the preform to the metallic surface; (d) infiltrating at least some of the voids with an epoxy in an uncured state; and (e) curing the epoxy; whereby an epoxy-based coating is formed on the metallic surface. In some embodiments, the PTFE preform in step (b) is a composite fibrillated PTFE preform comprising PTFE mixed with hard particles. Articles of manufacture are also disclosed having an epoxy-based coating deployed according to the embodiments of the disclosed coating methods.

Abstract: An article of manufacture having a wear-resistant cylindrical surface is made up of a metallurgically tough base steel with a substantially cylindrical surface, a thin, cylindrical metal sleeve mated to and affixed to the cylindrical surface of the base steel, and a composite metallic coating containing particles having a hardness greater than Rockwell C 70 metallurgically bonded to the surface of the sleeve opposite the base steel/sleeve interface.