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Master Bond adhesives

A. Schulman BMC 840 Corrosion Resistant Molding Compound
Categories: Polymer; Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC

Material Notes: BMC 840 is a very high strength, corrosion resistant compound suitable for compression, transfer and stuffer injection molding.

Typical applications are pump housings and impellers.

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 - 1.85 g/cc1.75 - 1.85 g/cc
Water Absorption 0.070 - 0.13 %0.070 - 0.13 %24 hours, 23°C
Linear Mold Shrinkage 0.0015 - 0.0025 cm/cm0.0015 - 0.0025 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Barcol 40 - 5040 - 50
Tensile Strength, Ultimate 62.1 - 75.8 MPa9000 - 11000 psi
Flexural Strength 124 - 152 MPa18000 - 22000 psi
Flexural Modulus 11.7 - 13.1 GPa1700 - 1900 ksi
Compressive Strength 103 - 117 MPa15000 - 17000 psi
Izod Impact, Notched 4.27 - 5.87 J/cm8.00 - 11.0 ft-lb/in
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 232 - 260 °C450 - 500 °F
Flammability, UL94 HBHB
 
Processing PropertiesMetricEnglishComments
Mold Temperature 138 - 160 °C280 - 320 °F

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