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Ensinger PEI

LG Chemical LUCEL MR-320 Low Warpage POM, 20% Mineral Filled  (discontinued **)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Mineral Filled

Material Notes: LUCEL semi-crystalline acetal copolymer resins are produced by gas phase polymerization. LUCEL resins can be widely accepted as the replacement of thermosets, aluminum and zinc die-casts or other metals.

Characteristics:

  • No pungent smell in processing
  • Excellent thermal stability based on structure of Acetal Copolymer
  • Well balanced mechanical properties and resistance to creep
  • Highest fatigue resistance to organic and chemical and hot water
  • Excellent friction and abrasion resistance
  • High dimensional stability and good moldability
  • Easy part design and application over a broad range of environmental conditions

Applications:

    Automotive: Water valve parts, radiator drain cock, carburetor float, exhaust gas valve, diaphragm valve, door lock, winker switch, wiper gear and pivot bearing, speedometer gear, window glass bottom channel, safety belt, retractor parts, door handle, lumbar support handle, sun visor bracket, collapsible room mirror stay, fender mirror body, waster pump nozzle

    Electrical and Electronic: Switch, coil bobbin, micrometer base, tuner parts, control switch parts, dial mechanism, cassette tape reel, power transmission gear, shaft nearing, bracket, fan motor housing, spring frame of headphone, arc shooter, toner agitating rotor, printer mechanism, gas meter component

    Industrial Parts and Others: Spring, bearing, spray guns, power cylinder, watch gear, alarm clock base, hot water pot housing, gear housing, table top chain runner, zipper, partition corner piece curtain runner, blind gear, door runner, office furniture parts, accessories, comb, pressure container

Information Provided by LG Chem

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.53 g/cc1.53 g/ccASTM D792
Linear Mold Shrinkage 0.013 - 0.016 cm/cm0.013 - 0.016 in/inASTM D955
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 8080ASTM D785
Tensile Strength at Break 61.0 MPa8850 psiASTM D638
Elongation at Break 7.0 %7.0 %ASTM D638
Flexural Strength 118 MPa17100 psiASTM D790
Flexural Modulus 5.90 GPa856 ksiASTM D790
Izod Impact, Notched 0.400 J/cm0.749 ft-lb/inASTM D256
 3.50 J/cm6.56 ft-lb/inReverse notched; ASTM D256
Taber Abrasion, mg/1000 Cycles 3333CS 17 Wheel, 1000g; ASTM D1044
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 165 °C329 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 150 °C302 °FASTM D648
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 170 - 190 °C338 - 374 °F
Middle Barrel Temperature 190 - 210 °C374 - 410 °F
Front Barrel Temperature 200 - 220 °C392 - 428 °F
Nozzle Temperature 200 - 220 °C392 - 428 °F
Melt Temperature 210 - 220 °C410 - 428 °F
Mold Temperature 60.0 - 120 °C140 - 248 °F
Drying Temperature 90.0 - 110 °C194 - 230 °F
Dry Time 3 - 6 hour3 - 6 hour
Injection Pressure 39.23 - 83.36 MPa5690 - 12090 psiSecond
 68.7 - 118 MPa9960 - 17100 psiFirst
Back Pressure 0.000 - 3.92 MPa0.000 - 569 psi
Screw Speed 40 - 75 rpm40 - 75 rpm

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PLGCHEM170 / 50991

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