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Bulk Molding Compounds BMC 685 Mineral Filled, Glass Fiber Reinforced Polyester Compound

Category Polymer , Thermoset , Filled/Reinforced Thermoset , Polyester, TS , Thermoset Polyester Glass and Mineral Filled BMC
Manufacturer BMC - Bulk Molding Compounds Inc.
Trade Name BMC
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Bulk Molding Compounds BMC 685 Mineral Filled, Glass Fiber Reinforced Polyester Compound.pdf
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Material Notes:
BMC 685 molding compound is a mineral filled, glass fiber-reinforced polyester compound suitable for compression, transfer and 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 circuit breakers.
Physical Properties Metric English Comments
Specific Gravity 1.75 g/cc
1.75 g/cc
Water Absorption 0.11 %
0.11 %
24 hours, 23°C
Linear Mold Shrinkage 0.0015 - 0.0025 cm/cm
0.0015 - 0.0025 in/in
Mechanical Properties Metric English Comments
Hardness, Barcol 55 - 65
55 - 65
Tensile Strength, Ultimate 62.1 - 82.7 MPa
9000 - 12000 psi
Flexural Strength 179 - 214 MPa
26000 - 31000 psi
Compressive Strength 179 - 214 MPa
26000 - 31000 psi
Izod Impact, Notched 7.47 - 10.1 J/cm
14.0 - 19.0 ft-lb/in
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) >= 260 °C
>= 500 °F
Flammability, UL94 HB

@Thickness 1.59 mm
HB

@Thickness 0.0625 in
V-0

@Thickness 6.35 mm
V-0

@Thickness 0.250 in
V-0

@Thickness 3.17 mm
V-0

@Thickness 0.125 in
Electrical Properties Metric English Comments
Dielectric Strength 15.4 - 16.1 kV/mm
390 - 410 kV/in
Short Time
Arc Resistance >= 190 sec
>= 190 sec
Comparative Tracking Index >= 500 V
>= 500 V
Processing Properties Metric English Comments
Mold Temperature 138 - 166 °C
280 - 330 °F
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