Which coating minimizes slippage and provides wear resistance?

• A. Plastic coating
• B. Surface finishing
• C. Powder coating
• D. Painting

Answer: (A)

A plastic coating is best for reducing slip between sliding surfaces while also offering wear resistance. Polymer-based coatings, like PTFE or nylon, create a lubricious, low-friction film on the surface, so two parts slide more easily and with less energy loss. This self-lubricating behavior helps minimize adhesive and abrasive wear, extending component life.

Powder coatings tend to be harder and more about surface durability and aesthetics, but they can increase friction on sliding contacts and aren’t as effective at lowering slip. Painting offers little protection for wear in sliding applications, as it can wear away quickly. Surface finishing is a broad category and doesn’t inherently ensure low friction or wear resistance without specifying a lubricious or hard-wearing film.