| Kestoil® is a self-lubricated, strong, wear resistant engineering plastic with a low coefficient of friction. Implicit in its nature, it has many properties that no other material has in combination. It is ideal for bearings without lubrication and for guides. Lubricants and impact and wear resistance increasing additives are added during production to turn Kestamid® into Kestoi®.Integrated into the material, lubricant additives become inseparable and homogenous components. Additives do not leak out even in heaviest operating conditions. Material quality and mechanical machining performance remain unaffected. No oily sensation is felt by touching the surface because additives are spread evenly inside the material.As bearing material, Kestoil® has a wear resistance 5-7 times the standard cast polyamide. This considerable result comes from the fact that the self-lubricating characteristic of the material keeps the coefficient of friction low during operation and thus prevents formation of heat between components that rub against each other. In the absence of self-lubrication, friction is reduced by external lubrication. Yet heat that is formed when lubricant is diminished or totally cleared away shortens material life due to increasing wear.Kestoil® should be preferred in applications where dimensional stability and weatherability of Kestamid® are questionable. As additives fill up pores, humidity and water absorption are reduced; sustaining dimensional stability. As the lubricant additive in Kestoil® is liquid, in high pressure and bearing applications liquid oil may leak out.Information provided by Polikim Polimer. |
