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Rulon Bearings

A. Schulman BMC 900 Thermoset Polyester, Soft Flow Encapsulation Grade
Categories: Polymer; Thermoset; Polyester, TS; Thermoset Polyester Glass Filled BMC
Material Notes: BMC 900 is an encapsulation grade, soft flow material. As with all other BMCI compounds, this series can be supplied in logs, slugs or bulk.

Typical applications are electrical coil encapsulations and armature shafts.
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 PropertiesMetricEnglishComments
Specific Gravity 1.75 - 1.90 g/cc1.75 - 1.90 g/cc
Water Absorption 0.10 - 0.20 %0.10 - 0.20 %24 hours, 23°C
Linear Mold Shrinkage 0.0010 - 0.0030 cm/cm0.0010 - 0.0030 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Barcol 30 - 4030 - 40
Tensile Strength, Ultimate 34.5 - 41.4 MPa5000 - 6000 psi
Flexural Strength 68.9 - 82.7 MPa10000 - 12000 psi
Flexural Modulus 10.3 - 12.4 GPa1500 - 1800 ksi
Compressive Strength 124 - 138 MPa18000 - 20000 psi
Izod Impact, Notched 0.534 - 1.60 J/cm1.00 - 3.00 ft-lb/in
 
Electrical PropertiesMetricEnglishComments
Dielectric Strength 12.6 - 13.8 kV/mm320 - 350 kV/inStep by Step
 13.8 - 15.7 kV/mm350 - 400 kV/inShort Time
Arc Resistance 180 - 190 sec180 - 190 sec
Comparative Tracking Index >= 500 V>= 500 V
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) >= 204 °C>= 400 °F
Flammability, UL94 5VB
@Thickness 1.59 mm		5VB
@Thickness 0.0625 in
 
Processing PropertiesMetricEnglishComments
Mold Temperature 138 - 166 °C280 - 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 view all the property values for this datasheet as they were originally entered into MatWeb.

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