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BMC 675

Thermoset Polyester

Supplied by Bulk Molding Compounds, Inc.

The technical datasheet with complete property values for BMC 675 is available to members of the Prospector Plastics Database.
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Product Description
BMC 675 molding compound is a mineral filled, glass reinforced polyester molding compound suitable for compression, transfer or stuffer injection molding. It is characterized by good moldability, oil and solvent resistance and creep resistance at elevated temperatures. Typical applications include replacements for die castings and sheet molding compounds, valve covers, intake manifolds, oil pans and structural components.

BMC 675 molding compound is produced in extruded form in a range of industrial colors. It is available in logs up to 12 inches in length or as precut slugs, of specific weight.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Automotive Specifications 
Forms 
  • Pellets
Processing Method 
  • Compression Molding
  • Extrusion
  • Injection Molding
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Molding Shrinkage - Flow
in/in
 ASTM D955
Water Absorption (73°F, 24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
 ASTM D638
Tensile Strength
psi
 ASTM D638
Flexural Modulus
psi
 ASTM D790
Flexural Strength
psi
 ASTM D790
Compressive Strength
psi
 ASTM D695
Impact
Nominal Value
Unit
Test Method
Instrumented Dart Impact
     ASTM D3763
Energy to Max Load
in·lb
  
0.125 in, Total Energy
in·lb
  
Hardness
Nominal Value
Unit
Test Method
Barcol Hardness
 
 ASTM D2583
Additional Information
Density Specific Gravity, ASTM D792: 1.80 to 1.90 sp gr 23/23°C
Flexural Strength, ASTM D790: 11000 to 14000 psi
Flexural Modulus, ASTM D790: 1800000 to 2000000 psi
Compressive Strength, ASTM D695: 23000 to 25000 psi
Tensile Strength, ASTM D638: 4000 to 5000 psi
Tensile Modulus, ASTM D638: 2000000 to 2300000 psi
Water Absorption @ 24 hrs, ASTM D570, 23°C: 0.23 to 0.27 %
Barcol Hardness, ASTM D2583: 50 to 60
Instrumented Dart Impact, ASTM D3763, 0.125 in, Total Energy: 3 to 4.4 ft-lb
Instrumented Dart Impact, ASTM D3763, Energy to Max Load: 1.8 to 2.7 ft-lb
Instrumented Dart Impact, ASTM D3763, Maximum Load: 170 to 200 lbs
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: BMC 675, BMC , BMC675, 675, Polyester, Thermoset, Polyester Thermoset, Polyester, TS, Polyester TS, Thermoset, TS, Bulk Molding, PolyesterThermoset, PolyesterTS
Automotive Specifications
This plastic material has approval for 1 automotive specifications from the following agencies (the number in parentheses shows the number of specifications for that agency): CHRYSLER (1).
Injection
Nominal Value
Unit
 
Processing (Melt) Temp
°F
  
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.