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Master Bond adhesives

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A. Schulman BMC 2270 Mineral Filled, Glass Reinforced Polyester
Categories: Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC

Material Notes: BMC 2270 molding compound is a mineral filled, glass-fiber-reinforced polyester compound suitable for compression and transfer molding. It is a general purpose material with medium impact strength and wet insulation resistance.

Typical applications include distributor caps and rotors.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Specific Gravity 1.86 g/cc
Water Absorption 0.12 %24 hours, 23°C
Linear Mold Shrinkage 0.0025 - 0.0035 cm/cm
 
Mechanical PropertiesOriginal ValueComments
Hardness, Barcol 25 - 35
Tensile Strength, Ultimate 5000 - 7000 psi
Flexural Strength 15000 - 20000 psi
Compressive Strength 22000 - 25000 psi
Izod Impact, Notched 3.00 - 4.00 ft-lb/in
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 5.3
@Frequency 60 Hz
Dielectric Strength 375 V/milShort Time
Dissipation Factor 0.018
@Frequency 60 Hz
Arc Resistance 190 sec
Comparative Tracking Index >= 500 V
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 1.8 MPa (264 psi) >= 500 °F
Flammability, UL94 V-0
@Thickness 6.35 mm
 V-0
@Thickness 3.17 mm
 V-0
@Thickness 1.59 mm
 
Processing PropertiesOriginal ValueComments
Mold Temperature 280 - 330 °F

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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PBMC059 / 27242

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