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Glass-reinforced polycarbonate is used in many industrial applications where metals, particularly die-cast aluminum and zinc, are commonly used. The addition of glass fibers to polycarbonate in various amounts (10%, 20%, 30% and 40%) increases tensile strength, stiffness, compressive strength, and lower the thermal expansion coefficient. The greater the amount of glass fiber added to the polycarbonate, the greater the effect on each property will be.

The coefficient of thermal expansion is reduced by nearly 75%, thus equaling that of some metals. While glass-reinforced has less impact strength than standard grades, it is still tougher and more impact resistant than most other plastics and die-cast aluminum. Custom cuts and cut-to-size available.

Brand Names

  • Lexan® 3412
  • Lexan® 3413
  • Lexan® 3414
  • Lexan® 500
  • Susta® PC GF20
  • Tecanat™ GF20
  • Unicar® RG

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.

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At a Glance

Generic Name
Polycarbonate, Glass Filled

Available In
Sheet, Rod

Certifications
MIL-P-19904

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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

TypeSizeLengthColor
Sheet 1/4″ – 4″ TH Natural
Rod 1/4″ – 6″ DIA Natural

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in³ D792 0.0401 – 0.0567
Water Absorption, 24 hrs % D570 0.050 0 – 0.300
Mechanical PropertiesUnitsASTMResults
Tensile Strength psi D638 12,300 – 19,000
Tensile Elongation @Break % D638 1.00 – 6.00
Flexural Strength psi D790 13,800 – 29,000
Flexural Modulus psi 551,000 – 1,400,000
Compressive Strength psi D695 18000
Compressive Modulus psi D695 500000
Hardness, Rockwell R D785 115 – 123
IZOD Impact Strength Notched ft-lb/in D256 1.00 – 3.30
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) D256 5.56 – 27.8
Heat Deflection Temp at 66 psi °F D648 210 – 306
Heat Deflection Temp at 264 psi °F 195 – 300
Melting Temperature °F D3418 210 – 331
Max Operating Temp °F 270
Thermal Conductivity BTU-in/ft²-hr-°F C177 1.53 – 2.20
Flammability Rating UL94 HB – 5VA
Electrical PropertiesUnitsASTMResults
Dielectric Strength. 1/8″ th. V/mil D149 470
Dielectric Constant D150 3.35
Dissipation Factor @ 60 Hz D150 0.0011
Volume Resistivity ohm-cm D257 10¹⁶

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

  • Housings and covers
  • Impact shields
  • Fluid handling components
  • Scientific equipment and housing components
  • Electrical components
  • Manifolds

Advantages

  • High impact strength
  • Low moisture absorption
  • Easy to machine, fabricate, paint, and glue
  • Transparent
  • Excellent flammability rating
  • Good Optical clarity

Grades

  • Glass Filled

NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.

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