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Hostalloy® ultra-high molecular weight polyethylene (UHMW-PE) is a linear polyethylene with a much higher molecular weight than standard PE, which offers outstanding abrasion resistance, superior impact resistance, non-sticking and self-lubricating properties, and excellent mechanical characteristics, even in cryogenic conditions.

Product Properties:

Exceptionally high notched impact strength
High energy absorption capacity at high stress rate
Excellent wear-resistant properties
Low coefficient of friction
Very high chemical resistance to acids, alkalis and corrosive gases
Highly resistant to environmental stress cracking
Wide service temperature range from -200°C to 90°C

Grades:

Orthopedic implants
Filtration
Batteries/lithium
Fibers
Additives
Membranes

Processing:

Pressureless sintering
Ram extrusion
Compression molding
Injection molding

As a polyethylene with a very high molecular weight, Hostalloy UHMW-PE is produced as a powder that requires special processing. In the semi-finished industry, the high pressures generated in compression molding and ram extrusion processes fuse the particles together. The material is then typically formed into stock shapes or profiles. It can also be processed by gelation and pressureless sintering.

Hostalloy UHMW-PE premium grades for orthopedic implants and standard grades meet the requirements of heath organizations, such as the U.S. Food and Drug Administration (FDA) and European Union food-conformity. FDA Drug and Device Master Files are available for premium grades.