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Nylon, one of the most widely used engineering thermoplastics, is an extremely versatile engineering plastic. An excellent combination of mechanical performance (toughness, low coefficient of friction, and good abrasion resistance) and cost make Nylon an ideal replacement for a wide variety of materials from metal to rubber.

Cast Nylon 6 (polycaprolactam) exhibits all the properties that generally make nylon a superior engineering material: high strength, low friction and wear resistance. Because of the casting process, part size and thickness are almost unlimited without degradation of the material’s internal structure. Cast Nylon 6 provides one of the largest array of sizes and custom shapes of any thermoplastic.

By varying the conditions through the addition of various additives, fillers, lubricants and colorants during polymerization, the mechanical properties of cast nylon may be altered to suit specific applications. Formulations include molybdenum-disulfide filled, moly and oil filled (blue), and glass-filled grades. Variants within these nylon grades are available to match specific application demands such as FDA compliance, Internally lubricated, heat stabilized, UV stabilized, anti-static, fire retardant, or impact modified.

Glass Filled: Variants of this nylon exhibit increased structural and impact strength, and rigidity. The addition of glass fibers to nylon in various amounts (10%, 20%, 30% and 40%) increases tensile strength, stiffness, compressive strength, and a lower thermal expansion coefficient over conventional unfilled grades. Glass filled nylons offer better strength than general purpose nylon but it is highly abrasive and will abrade or gall mating surfaces.

Contact an Emco Industrial Plastics representative who can help you choose the correct material to meet the needs of your application.

Brand Names

  • Sustamid® 6G GK
  • Unipa® FG

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

Available In
Sheet, Rod


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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

Sheet 3/8″ – 4″ TH
Rod 2″ – 12″ DIA

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


Physical PropertiesUnitsASTMResults
Density lb/in3 D792 0.0423 – 0.0585
Water Absorption, 24 hrs % D570 0 – 7.5
Mechanical PropertiesUnitsASTMResults
Tensile Strength psi D638 13800 – 28300
Tensile Modulus psi D638 464000 – 1.62e+6
Tensile Elongation @Break % D638 2 – 10
Flexural Strength psi D790 16000 – 45000
Flexural Modulus psi 400000 406000 -1.41e+6
Compressive Strength psi D695 2320 – 2.2e+6
Hardness, Rockwell R D785 110 – 121
IZOD Impact Strength Notched ft-lb/in D256 1.12 – 4.5
IZOD Impact Strength Un-notched ft-lb/in D256 12 – 21.9
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) D256 10.6 – 55.6 µin/in-°F
Heat Deflection Temp at 66 psi °F D648 345 – 430
Heat Deflection Temp at 264 psi °F 311 – 450
Melting Temperature °F D3418 410 – 491
Max Operating Temp °F 230 – 450
Thermal Conductivity BTU-in/ft2-hr-°F C177 1.18 – 3.47
Flammability Rating UL94 HB
Electrical PropertiesUnitsASTMResults
Dielectric Strength V/mil D149 406 – 1040
Dielectric Constant D150 3.2 – 10
Dissipation Factor @ 60 Hz D150 0.005 – 0.36
Surface Resistivity @ 60 Hz ohms/sq D257 55000 – 1e+016
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.


  • Machine parts
  • Bearings, bushings, gears
  • Valve Seats and Wear Surfaces
  • Rollers
  • Guides
  • Industrial clamp component


  • Good electrical insulator
  • High chemical resistance
  • Good wear and abrasion resistance
  • Easily fabricated into precision parts using standard metalworking equipment
  • USDA and FDA compliant (natural only)
  • Vibration and peening resistance
  • Good Weathering Resistance


  • Cast (Type 6), Unfilled
  • Cast (Type 6), Unfilled, Heat Stabilized
  • Cast (Type 6), Oil Filled
  • Cast (Type 6), Moly Filled
  • Cast (Type 6), Glass Filled
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