BMC 675

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: 4oxEqU_BMC-675.pdf
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BMC 675 molding compound is a mineral filled, glass reinforced polyester molding compound suitable for compression, transfer or stuffer injection molding. It is characterized by good moldability, oil and solvent resistance and creep resistance at elevated temperatures. Typical applications include replacements for die castings and sheet molding compounds, valve covers, intake manifolds, oil pans and structural components.

BMC 675 molding compound is produced in extruded form in a range of industrial colors. It is available in logs up to 12 inches in length or as precut slugs, of specific weight.
General Information
Forms
  • Particle
Processing Method
  • Extrusion
  • Compression molding
  • Injection molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.85g/cm³ASTM D792
Molding Shrinkage - Flow 0.10 - 0.30%ASTM D955
Water Absorption (23°C, 24 hr)0.25%ASTM D570
HardnessNominal ValueUnitTest Method
Barcol Hardness 55ASTM D2583
MechanicalNominal ValueUnitTest Method
Tensile Modulus 14800MPaASTM D638
Tensile Strength 31.0MPaASTM D638
Flexural Modulus 13100MPaASTM D790
Flexural Strength 86.2MPaASTM D790
Compressive Strength 165MPaASTM D695
ImpactNominal ValueUnitTest Method
Instrumented Dart Impact ASTM D3763
    Energy to Max Load 3.05JASTM D3763
    3.18 mm, Total Energy 5.02JASTM D3763
Additional Information
Density Specific Gravity, ASTM D792: 1.80 to 1.90 sp gr 23/23°CFlexural Strength, ASTM D790: 11000 to 14000 psiFlexural Modulus, ASTM D790: 1800000 to 2000000 psiCompressive Strength, ASTM D695: 23000 to 25000 psiTensile Strength, ASTM D638: 4000 to 5000 psiTensile Modulus, ASTM D638: 2000000 to 2300000 psiWater Absorption @ 24 hrs, ASTM D570, 23°C: 0.23 to 0.27 %Barcol Hardness, ASTM D2583: 50 to 60Instrumented Dart Impact, ASTM D3763, 0.125 in, Total Energy: 3 to 4.4 ft-lbInstrumented Dart Impact, ASTM D3763, Energy to Max Load: 1.8 to 2.7 ft-lbInstrumented Dart Impact, ASTM D3763, Maximum Load: 170 to 200 lbs
InjectionNominal ValueUnit
Processing (Melt) Temp 138 - 166°C
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