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BMC 501E

Thermoset Polyester

Glass\Mineral

Supplied by Bulk Molding Compounds, Inc.

The technical datasheet with complete property values for BMC 501E is available to members of the Prospector Plastics Database.
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Product Description
BMC 501E molding compound is a mineral filled, glass-fiber-reinforced polyester compound suitable for compression and transfer molding. It is a product with good overall electrical properties, flame resistance, and low water absorption. Distinguished from other materials by its very soft flow, it is an excellent compound for encapsulating delicate components. Typical applications include coil and solenoid Encapsulation. BMC 501E molding compound is produced in extruded form in a range on industrial colors. Because of the soft consistency of this product, it is only available in logs from 3 inches to 12 inches in length and from 1" to 2 ½" in diameter. Within this range, smaller diameters are supplied as multiple extrusions.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Filler / Reinforcement 
  • Glass\Mineral
Features 
  • Flame Retardant
  • Good Electrical Properties
  • Low to No Water Absorption
Uses 
  • Coating Applications
Appearance 
  • Colors Available
Forms 
  • BMC - Bulk Molding Compound
Processing Method 
  • Compression Molding
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
ASTM D792
Molding Shrinkage - Flow (Compression Molded)
in/in
ASTM D955
Water Absorption (73°F, 24 hr)
%
ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Yield, Compression Molded)
psi
ASTM D638
Flexural Strength (Compression Molded)
psi
ASTM D790
Compressive Strength
psi
ASTM D695
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (Compression Molded)
ft·lb/in
ASTM D256
Hardness
Nominal Value
Unit
Test Method
Barcol Hardness
 
ASTM D2583
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (264 psi, Unannealed, Compression Molded)
°F
ASTM D648
Electrical
Nominal Value
Unit
Test Method
Dielectric Strength 2
V/mil
ASTM D149
Dielectric Constant (60 Hz)
 
ASTM D150
Dissipation Factor (60 Hz)
 
ASTM D150
Arc Resistance
sec
ASTM D495
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL     UL 94
0.0625 in
 
 
0.125 in
 
 
0.250 in
 
 
UL
Nominal Value
Unit
Test Method
Comparative Tracking Index (CTI)
V
UL 746
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: BMC 501E, BMC , BMC501E, 501 E, 501E, Polyester, Thermoset, Polyester Thermoset, Polyester, TS, Polyester TS, Thermoset, TS, Bulk Molding, PolyesterThermoset, PolyesterTS, E501
Features
Features may also be described by the following terms: Low Water Absorption, Low Moisture Absorption, Water Resistant, Moisure Resistant, Good Electrical Properties.
Injection
Nominal Value
Unit
 
Mold Temperature
°F
 
Notes
1Typical properties: these are not to be construed as specifications.
2Method A (Short-Time)
 
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.