GUR® ultra-high molecular weight polyethylene (UHMW-PE)

Available from Celanese Corporation

GUR offers outstanding abrasion resistance, superior impact resistance, non-sticking and self-lubricating properties and excellent mechanical properties, even in cryogenic conditions.

GUR is an extremely high viscosity polymer that is produced in the form of a powder and has an average particle size diameter typically ranging from 100-200 microns. As a result of its viscosity, it generally cannot be processed by common methods used for thermoplastics. Thus, compression molding and ram extrusion processes are used to generate the high pressures needed to fuse GUR particles together and then, typically, are used to form the material into stock shapes or profiles with subsequent machining, as necessary.

Because of its abrasion resistance, chemical resistance and good frictional properties, major application areas of GUR include bulk material handling, food and beverage machinery; chemical, mining and mineral processing equipment, recreational equipment, transportation and orthopedic implants.

GUR can also be gel processed for battery separators, synthetic paper or high-strength fiber applications. The free sintering process can be used to produce porous filters, wicking parts and fluid delivery components.

Ticona is the largest global supplier with the broadest UHMW-PE portfolio in the industry. Included in this portfolio are GUR Specialty Products used to fabricate porous and filtration parts and as additives for paints, coatings or material matrix modifiers.

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