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Lennite™ WM is made from UHMWPE resin which conforms to ASTM F648 and ISO 5834-1. Westlake Plastics’ manufacturing processes and stringent quality control deliver well-consolidated and consistent pre-forms. Lennite ram extruded bar stock conforms to ASTM F648 and ISO 5834-2 and is targeted for use in machining orthopedic implants. Sterilization methods include EtO gas, cold sterilization, and limited gamma irradiation.

Polymer Name: Ultra High Molecular Weight Polyethylene (UHMWPE)

Physical Form: Rods

Features: Chemical Resistant, Low Moisture Absorption, Wear Resistant

Color: Natural

Technical Data Sheet

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Knowde Enhanced TDS

Identification & Functionality

Technologies

Features & Benefits

Manufacturing Capabilities

Westlake Plastics LENNITE WM Manufacturing Capabilities

Applications & Uses

Plastics & Elastomers End Uses
Applications
  • Total hip and knee joint prosthesis
  • Various other surgical implants
  • Medical devices

Properties

Color
Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Ash Content (max. 150)58mg/kg
Density (927 to 944)0.932kg/m3
Elongation at Break (min. 300 )405%
Izod Impact Strength (min. 126)NBkJ/m2
Tensile Strength (Break, min. 35)49.9MPa
Tensile Strength (Yield, min. 21)22.6MPa

Regulatory & Compliance

Certifications & Compliance