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Plastics & Elastomers
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Plastics & Elastomers
by SpecialChem
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Technical Datasheet | Supplied by Mitsui Chemicals
LUBMER™ L4000 by Mitsui Chemicals is a noiseless ultra-high molecular weight polyethylene (UHMWPE) grade free of halogen and PFOA. Exhibits low friction and good resistance to wear and chemicals including alcohols, alkalis, oils, hydrogen peroxide, sulfuric and phosphoric acid. It is a self-lubricating and food contact acceptable grade with low water absorption. LUBMER™ L4000 effectively improves sliding property in low dosage, better than PTFE or molybdenum disulfide. It also improves abrasion resistance for higher durability and robust material. Designed for processing by injection molding, extrusion or insert mold for grease-less, light weight gears and bearings. Provides good moldability, good dimensional stability and electrical insulating properties, high mechanical properties and innovative processability. Applicable materials for modified LUBMER™ include PA6, PA66, Aromatic PA, POM, PBT, PET, PC, ABS and PPS. It contributes to increased production efficiency and total cost reduction in a co-extrusion process. LUBMER™ L4000 can be used for the replacement for PTFE or as a tribology modifier of engineering plastics. Complies with UL 94 HB Flame Rating.
Technical Datasheet | Supplied by Mitsui Chemicals
Product Type
PE (Polyethylene) > UHMWPE
Physical Form
Product Status
Applications/ Recommended for
  • Gears
  • Extrusion > Coextrusion
  • Injection molding - thermoplastics
Labels/Agency Rating
UL 94 HB Flame Rating
Key Features
  • Abrasion resistance, Good
  • Alcohol Resistant
  • Alkali Resistant
  • Cost Effective
  • Dimensional stability, Good
  • Durable
  • Electrically Insulating
  • Food Contact Acceptable
  • Friction, Low
  • Halogen Free
  • Lubricating, Self
  • Mechanical Properties, Good
  • Moldability, Good
  • Molecular Wt., Ultra High
  • Noise Damping
  • Oil Resistant
  • Processability, Good
  • Water Absorption, Low to None
  • Wear resistance, Good
  • Sliding

LUBMER™ L4000 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Tensile Strength, Yield
37 MPa
(50 mm/min)
ISO 527-1/2
Tensile Strength at Break
30 MPa
(50 mm/min)
ISO 527-1/2
Flexural Modulus
1740 MPa
( )
ISO 178

LUBMER™ L4000 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Nozzle Temperature
240 °C
Injection Pressure
50 MPa
Injection Time
2 - 4 s

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