BMC 604

Category: Polyester, TS , Thermoset Polyester
Manufacturer: Bulk Molding Compounds, Inc.
Trademark: BMC
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: peh9TF_BMC-604.pdf
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BMC 604 molding compound is a low-cost, mineral filled glass-fiber-reinforced polyester compound suitable for compression, transfer and stuffer injection molding. It is a general purpose material with medium impact strength and good overall electrical properties. Typical applications include slip rings, cummutators and brush holders. BMC 604 molding compound is produced in extruded form in a range on industrial colors. It is available in logs up to 12 inches in length or as precut slugs, of specific weight, in diameters 1" to 2 ½" . Within this range, smaller diameters are supplied as multiple extrusion and weight tolerances are plus or minus 5 %, up to a maximum of plus or minus 15 grams.
General Information
Filler / Reinforcement
  • Glass\Mineral
Features
  • General Purpose
  • Good Electrical Properties
  • Medium Impact Resistance
Uses
  • Communication Applications
  • General Purpose
Appearance
  • Colors Available
Forms
  • BMC - Bulk Molding Compound
Processing Method
  • Compression Molding
  • Injection Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 2.05g/cm³ASTM D792
Molding Shrinkage - Flow 0.30 to 0.40%ASTM D955
Water Absorption (23°C, 24 hr)0.13%ASTM D570
HardnessNominal ValueUnitTest Method
Barcol Hardness 30 to 40ASTM D2583
MechanicalNominal ValueUnitTest Method
Tensile Strength (Yield)27.6 to 41.4MPaASTM D638
Flexural Strength 110 to 138MPaASTM D790
Compressive Strength 193 to 228MPaASTM D695
ImpactNominal ValueUnitTest Method
Notched Izod Impact 110 to 210J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load (1.8 MPa, Unannealed)260°CASTM D648
ElectricalNominal ValueUnitTest Method
Dielectric Strength 113kV/mmASTM D149
Arc Resistance 180secASTM D495
Comparative Tracking Index (CTI) 500VUL 746
FlammabilityNominal ValueUnitTest Method
Flame Rating UL 94
    1.59 mm HB
    3.18 mm HB
    6.35 mm HB
InjectionNominal ValueUnit
Mold Temperature 138 to 166°C
Note Message
1 .Method A (Short-Time)
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