BMC 940

Category: Vinyl Ester , Vinyl Ester
Manufacturer: Bulk Molding Compounds, Inc.
Trademark: BMC
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: ukGRsU_BMC-940.pdf
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BMC 940 is a Vinyl Ester product,. It can be processed by compression molding and is available in North America. BMC 940 applications include electrical/electronic applications, electrical appliances and the automotive industry.

Features include:
  • flame retardant/rated flame
  • Corrosion resistance
General Information
Features
  • Good electrical performance
  • Good corrosion resistance
Uses
  • Electrical/Electronic Applications
  • Home appliance components
  • Application in Automobile Field
Forms
  • BMC-Block Molding Compound
Processing Method
  • Compression molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.82g/cm³ASTM D792
Molding Shrinkage - Flow 0.10%ASTM D955
Water Absorption (23°C, 24 hr)0.060%ASTM D570
MechanicalNominal ValueUnitTest Method
Tensile Modulus 11000MPaASTM D638
Tensile Strength (Yield)30.3MPaASTM D638
Tensile Elongation (Yield)4.0E-3%ASTM D638
Flexural Modulus 10300MPaASTM D790
Flexural Strength 40.0MPaASTM D790
ImpactNominal ValueUnitTest Method
Unnotched Izod Impact 16J/mASTM D256
Instrumented Dart Impact (23°C, Total Energy)3.57JASTM D3763
ThermalNominal ValueUnitTest Method
Glass Transition Temperature 200°CASTM E1356
FlammabilityNominal ValueTest Method
Flame Rating (3.56 mm)V-0UL 94
Additional Information
Conductivity, Vendor, Through Plane (Z-direction): 50 S/cmConductivity, Vendor, In Plane (X,Y direction): 100 S/cmInstrumented Impact, ASTM D3763, 23°C, Max Load=169 lbs, Total Energy: 2.63 ft-lbInstrumented Impact, ASTM D3763, 23°C, Max Load=169 lbs, Energy to Max Load: 0.55 ft-lbCompressive Creep, ASTM D2990, 200 psi, 200 hr @ 80°C: 0.025%Compressive Creep, ASTM D2990, 200 psi, 1000 hr @ 80°C: 0.040%DMA-Modulus, ASTM D4065, 25°C: 2.0x10^6DMA-Modulus, ASTM D4065, 100°C: 1.6x10^6DMA-Modulus, ASTM D4065, 150°C: 1.23x10^6DMA-Modulus, ASTM D4065, 175°C: 0.94x10^6DMA-Modulus, ASTM D4065, 200°C: 0.50x10^6Thermal Expansion, E831: 30 micro m/m°CThermal Conductivity, E1461-92, In-Plane, 25°C: 46.2 W/m-KThermal Conductivity, E1461-92, In-Plane, 85°C: 43.7 W/m-KThermal Conductivity, E1461-92, Through-Plane, 25°C: 19.2 W/m-KThermal Conductivity, E1461-92, Through-Plane, 85°C: 18.5 W/m-KDiffusivity, E1461-92, In-Plane, 25°C: 0.302 cm^2/sDiffusivity, E1461-92, In-Plane, 85°C: 0.231 cm^2/sDiffusivity, E1461-92, Through-Plane, 25°C: 0.125 cm^2/sDiffusivity, E1461-92, Through-Plane, 85°C: 0.098 cm^2/s
InjectionNominal ValueUnit
Mold Temperature 163 - 168°C
Injection instructions
Cure Time: 30-60 secRecommended tonnage: 3 tons per square inch of projected part area
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