A part of the design of Engineering components is maintenance, and how to reduce maintenance. The designer is confronted by several methods of coating a product from which he must pick a system, which is most suitable to his application. Besides cost and delivery time the designer must consider quality, life expectancy and re-coating.

Plastic coating is the process of applying a thermoplastic to the surface of metal items in order to extend the life of a product by protecting it against corrosion and abrasion and also offer attractive decorative finish. These are the various properties of plastic coating:

• Non -toxic
• Dry lubrication
• Good U.V. stability
• High temperature resistance
• Good impact resistance
• Good chemical resistance
• Electrical and thermal insulation