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LUBMER™ LS4140

Technical Datasheet | Supplied by Mitsui Chemicals
LUBMER™ LS4140 by Mitsui Chemicals is a ultra-high molecular weight polyethylene (UHMWPE) grade. It is a self-lubricating, halogen- and PFOA- free, food contact acceptable grade. Exhibits low friction and good resistance to wear and chemicals including alcohols, alkalis, oils, hydrogen peroxide, sulfuric and phosphoric acid. It effectively improves sliding property in low dosage, better than PTFE or molybdenum disulfide. It also improves abrasion resistance for higher durability and robust material. LUBMER™ LS4140 is designed for processing by injection molding, extrusion or insert mold for grease-less, light weight gears and bearings. Applicable materials for modified LUBMER™ include PA6, PA66, Aromatic PA, POM, PBT, PET, PC, ABS and PPS. Provides low water absorption, good moldability, good dimensional stability and electrical insulating properties, high mechanical properties and innovative processability. It contributes to increased production efficiency and total cost reduction in a co-extrusion process. Complies with UL 94 HB Flame Rating. LUBMER™ LS4140 can be used for the replacement for PTFE or as a tribology modifier of engineering plastics.
Product Type
PE (Polyethylene) > UHMWPE
Physical Form
Pellets
Appearance
Light yellow
Product Status
COMMERCIAL
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™ LS4140 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
14 g/10 min
(At 230°C, 2.16 kgf)
MCI Method
Density
1095 kg/m3
( )
ASTM D1505

LUBMER™ LS4140 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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