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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. There are many nylon grades available; the most common are Nylon 6/6 (extruded) and Nylon 6 (cast).

The properties of cast and extruded nylon are very similar; and typically, can be used interchangeably. It is the strongest and stiffest of all nylons, and has the highest melting point of any unmodified nylon processed by conventional extrusion techniques. However, there are some advantages and limitations to each material.

Cast Nylon 6 (polycaprolactam) has similar mechanical properties to extruded nylon 6/6; however there are distinct advantages. Cast nylon 6 is often less expensive to produce, especially for large geometries, large cross-sections, etc. The casting process of cast nylon 6 results in less stress than the extrusion process, thus providing better dimensional stability. Nylon 6 exhibits all the properties which generally make nylon a superior engineering material: high strength, low friction and wear resistance. Additionally, 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. Custom irregularly shaped parts can be cast to “near-net” geometries thereby reducing machining time. Cast nylon meets FDA standards. It is also available in blue, glass-filled, and molybdenum-disulfide filled grades.

A large number of formulations (i.e., blue, glass-filled and molybdenum-disulfide filled grades, FDA compliant, Internally lubricated, heat stabilized (blue), impact modified) for nylon are available to match specific application demands. Heat stabilized Nylon 6 (blue) adds up to 20° F higher continuous operation temperature for those applications that require additional temperature resistance beyond the standard resistance.

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

Brand Names

  • MC® 901
  • MC® 907
  • SustaGlide®
  • Sustamid® 6G series
  • Unipa®
  • Unipa® MA tpe
  • Vekton® 6
  • Vekton® 6PA

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.

Do you need Fabrication or Machining for Nylon Cast Type 6 Unfilled?

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At a Glance

Generic Name

Available In
Sheet, Rod, Tube

Heat Stabilized, FDA Compliant, High Performance, High Impact Resistance, MIL-P-19904

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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

Sheet 1/4″ – 4″ TH up to 4′ x 10′; CTS Natural, Black, Blue
Rod 2″ – 20″ DIA up to 10′; CTS Natural, Black, Blue
Tube 2″ OD – 20″OD

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 0.042
Water Absorption, 24 hrs % D570 0.3
Mechanical PropertiesUnitsASTMResults
Tensile Strength psi D638 12000
Tensile Modulus psi D638 400000
Tensile Elongation @Break % D638 20
Flexural Strength psi D790 16000
Flexural Modulus psi 400000 500000
Compressive Strength psi D695 15000
Compressive Modulus psi D695 400000
Hardness, Rockwell R D785 115
IZOD Impact Strength Notched ft-lb/in D256 0.4
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) D256 3.5
Heat Deflection Temp at 264 psi °F 200
Melting Temperature °F D3418 420
Max Operating Temp °F 200
Flammability Rating UL94 HB
Electrical PropertiesUnitsASTMResults
Dielectric Strength V/mil D149 500
Dielectric Constant D150 3.7
Volume Resistivity, 50% RH ohm-cm D257 >10^13
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


  • 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


  • 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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