BMC 2274

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: 4FW7Mi_BMC-2274.pdf
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BMC 2274 molding compound is a 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, commutators and brush holders. BMC 2274 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 from 1" to 2 ½". Within this range, smaller diameters are supplied as multiple extrusions and weight tolerances are plus or minus 5% up to a maximu m of plus or minus 15 grams.
General Information
Filler / Reinforcement
  • Glass\Mineral
Features
  • General Purpose
  • Medium Impact Resistance
Uses
  • Electrical/Electronic Applications
  • General Purpose
Appearance
  • Colors Available
Forms
  • BMC - Bulk Molding Compound
Processing Method
  • Compression Molding
  • Injection Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 2.01g/cm³ASTM D792
Molding Shrinkage - Flow (Compression Molded)0.25 to 0.40%ASTM D955
Water Absorption (23°C, 24 hr)0.13%ASTM D570
HardnessNominal ValueUnitTest Method
Barcol Hardness 45ASTM D2583
MechanicalNominal ValueUnitTest Method
Tensile Strength (Yield, Compression Molded)41.4MPaASTM D638
Flexural Strength (Compression Molded)124MPaASTM D790
Compressive Strength 165MPaASTM D695
ImpactNominal ValueUnitTest Method
Notched Izod Impact (Compression Molded)160J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load (1.8 MPa, Unannealed, Compression Molded)260°CASTM D648
ElectricalNominal ValueUnitTest Method
Dielectric Strength 113kV/mmASTM D149
Arc Resistance 180secASTM D495
Comparative Tracking Index (CTI) 600VUL 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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