Although Oliver coatings are most often used for grinding or other material-removal jobs, Oliver also performs coating services to apply very hard, wear-resistant coatings to customers' parts. For these "hard facing" or "hard surfacing" jobs, the coating is not engineered to be open and aggressive like on a grinding tool, but rather is made with a layer of densely-packed tungsten-carbide particles fully infiltrated with a nickel-based braze alloy. Unlike with various "spray" coatings, the particles used can be rather large, and a heavy build-up can be applied. Because the parts are furnace-sintered to produce the bond, there is a strong penetration of braze alloy into the steel surface and the coatings are thus extremely resistant to flaking or spalling.

Applications include debarker tips and wear parts for the forestry industry, mixing paddles and other internal parts for mixing abrasive materials such as brake lining stock, and internal parts for plastic pelletizers and pellet dryers.