Abrasion & Wear Resistance

Abrasion resistance is the process of rubbing away the surface of something; wear means to become thin and disappear after repeated use or rubbing. The abrasion and wear of metal occurs through friction – the contact causing wearing on the metal surface. As contact is made between mating metal parts this has an impact on the component surface, resulting in momentary welding of asperities (peaks). As each part continues to move, the welded asperities are ripped off, leaving behind pits.

Xylan® coatings provide a thin layer of lubrication to prevent the asperities on mating surfaces from making physical contact with each other. The selection of the best dry lubricant, such as PTFE, moly, or graphite, for these applications depends primarily on the PV (Pressure X Velocity), atmosphere and operating temperature of the application.

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Often, a Xylan coating provides enough lubrication to eliminate excessive wear. In most cases, friction and wear of the parts are reduced when one or both are coated with a dry-film lubricant. Also, the coatings serve as a thin cushion, spreading high point loads in bearing and reducing element fatigue.

Abrasion resistance and wear are the main cause of component failure in almost every industry – choosing the correct Whitford coating does not only extend the life span of a component but also improves performance.

Coatings with abrasion and wear resistant properties have many advantages:

Extended part life of components
Decreased maintenance of components reducing cost and increasing uptime/productivity
Increased high-temperature resistance
Increased performance capabilities under harsh environmental conditions
Low coefficient of friction; preventing the scoring, galling or sticking of mating components

Whitford’s abrasion and wear resistant coatings have benefits for and are sold into various markets: