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Mar-Bal MB4000 Thermoset Polyester Composite Molding Compound

Category Polymer , Thermoset , Polyester, TS , Thermoset Polyester Glass Filled BMC
Manufacturer Mar-Bal
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Mar-Bal MB4000 Thermoset Polyester Composite Molding Compound.pdf
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Material Notes:
The high track resistant material. A flame retardant polyester molding compound with moderate strength and excellent electrical properties and exceptional arc and track resistance. Suitable for replacing porcelain in insulator and other electrical applications where higher track resistance is critical.Mar-Bal standard grades can be injection, compression and transfer molded.Information provided by Mar-Bal, Inc.
Physical Properties Metric English Comments
Specific Gravity 1.70 - 1.90 g/cc
1.70 - 1.90 g/cc
ASTM D792
Bulk Factor 1.0 - 1.5
1.0 - 1.5
ASTM D1895
Water Absorption 0.12 %

@Time 86400 sec
0.12 %

@Time 24.0 hour
ASTM D570
Linear Mold Shrinkage 0.00050 - 0.0030 cm/cm
0.00050 - 0.0030 in/in
ASTM D955
Mechanical Properties Metric English Comments
Hardness, Barcol 41 - 47
41 - 47
ASTM D2583
Tensile Strength 34.5 - 44.8 MPa
5000 - 6500 psi
ASTM D638
Flexural Strength 89.6 - 117 MPa
13000 - 17000 psi
ASTM D790
Flexural Modulus 11.7 - 13.1 GPa
1700 - 1900 ksi
ASTM D790
Compressive Strength 96.5 - 103 MPa
14000 - 15000 psi
ASTM D695
Izod Impact, Notched 3.74 - 5.34 J/cm
7.00 - 10.0 ft-lb/in
ASTM D256
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) >= 260 °C
>= 500 °F
ASTM D648
Flammability, UL94 V-0
V-0
Electrical Properties Metric English Comments
Dielectric Strength 13.8 kV/mm
350 kV/in
ASTM D149
Arc Resistance >= 185 sec
>= 185 sec
ASTM D495
Track Resistance 9000 sec
9000 sec
Inclined-Plane Tracking; ASTM D2303
Descriptive Properties Value Comments
Listed File E80533 Yes
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