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Bulk Molding Compounds BMC 2274 Mineral Filled, Glass Reinforced Polyester

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 2274 Mineral Filled, Glass Reinforced Polyester.pdf
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Material Notes:
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.
Physical Properties Metric English Comments
Specific Gravity 2.02 g/cc
2.02 g/cc
Water Absorption 0.13 %
0.13 %
24 hours, 23°C
Linear Mold Shrinkage 0.0025 - 0.0040 cm/cm
0.0025 - 0.0040 in/in
Mechanical Properties Metric English Comments
Hardness, Barcol 40 - 50
40 - 50
Tensile Strength, Ultimate 34.5 - 48.3 MPa
5000 - 7000 psi
Flexural Strength 110 - 138 MPa
16000 - 20000 psi
Compressive Strength 152 - 179 MPa
22000 - 26000 psi
Izod Impact, Notched 1.07 - 2.14 J/cm
2.00 - 4.00 ft-lb/in
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) >= 260 °C
>= 500 °F
Flammability, UL94 HB

@Thickness 6.35 mm
HB

@Thickness 0.250 in
HB

@Thickness 3.17 mm
HB

@Thickness 0.125 in
HB

@Thickness 1.59 mm
HB

@Thickness 0.0625 in
Electrical Properties Metric English Comments
Dielectric Strength 13.0 kV/mm
330 kV/in
Short Time
Arc Resistance >= 180 sec
>= 180 sec
Comparative Tracking Index >= 600 V
>= 600 V
Processing Properties Metric English Comments
Mold Temperature 138 - 166 °C
280 - 330 °F
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