UHMWPE (Ultra-high molecular weight) is polymerised with a modified Ziegler-Catalyst. The density is lowered and the sliding friction coefficient is improved. UHMWPE distinguishes itself through its very high impact resistance and abrasion resistance. The FDA approval assures physiological safety.
The low friction coefficient and its non-hygroscopicity make it suitable for use as a bearing or mechanical parts with low loads, even when operating in water.
Sliding guides or pump and wear parts are often manufactured from UHMWPE.
However, it’s widely used for components in food machinery and manufacturing.
It can operate as low as -200°C and can be used in cryogenics.