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At Emco Industrial Plastics, we are one of the leading distributors of plastic materials in North America. We maintain a broad selection of engineering, high-performance, and commodity plastics in various forms—including sheet, rod, tube, profile, and film—to accommodate different customer needs. For example, we offer nylon 6 (a cast nylon material) in glass-filled variants.  

Overview of Nylon

Nylon is highly versatile. Due to its many advantageous properties, it finds use in many industries and industrial applications, making it one of the most widely used engineering thermoplastics. For example, its lighter material weight, toughness, impact resistance, and thermal resistance (up to 180º F) make it well suited for the manufacture of mechanical and electrical components. Additionally, it often serves as a replacement for aluminum, brass, bronze, steel, and other metals in assemblies that require the reduction of weight and/or noise stemming from metal-to-metal contact.

The material is available in numerous variations, each of which varies slightly in composition and, consequently, properties exhibited. The commercially available types include nylon 6, nylon 4/6, nylon 6/6, nylon 6/10, nylon 6/12, nylon 11, and nylon 12. The numerical qualifiers indicate the ratio of carbon atoms in the diamine and dibasic acid monomers used in the manufacture of the material (e.g., nylon 6/6 has six carbon atoms in the diamine acid monomer and six carbon atoms in the dibasic acid monomer).

Properties, Advantages, and Applications of Glass-Filled Nylon

Nylon manufacturers can also include various additives and fillers to improve or enhance the properties of the material. For example, adding glass powder or fibers can increase its strength and rigidity. Compared to standard nylon, glass-filled nylon generally offers the following advantages:

  • Up to 80% greater stiffness 
  • Up to 70% greater tensile strength
  • Approximately 50% of the thermal expansion rate
  • 50% greater material hardness

However, the actual properties and performance of the final material are highly dependent on the base composition and the amount of glass content added. For example, nylon 6/6 with 30% glass content has the following properties:   

  • Light material weight
  • Low coefficient of friction
  • High tensile strength
  • High elasticity
  • High thermal resistance
  • Resistance to abrasion, vibration, and wear
  • Resistance to a variety of chemicals, alkalis, dilute acids, and oxidizing agents
  • Moisture absorbent
  • Low permeability when exposed to gasoline, mineral oil, and fluorocarbon-refrigerant

The unique characteristics of glass-filled nylon make it perfect for use in a wide range of industries and industrial applications. Typical use cases include:

  • Appliances
  • Bearings
  • Brake fluid reservoirs
  • Business machines
  • Cooling fans
  • Door-latch hardware
  • Industrial equipment
  • Molded fender extensions
  • Speedometer gears
  • Timing sprockets
  • Washers and stampings
  • Windshield wiper parts
  • Wire connectors

What are the Properties, Advantages, & Applications of Glass-Filled Nylon 6?

Nylon 6 is a tough and abrasion-resistant nylon variant. Compared to nylon 6/6, it offers better surface appearance properties and processability and requires lower molding temperatures with less risk of mold shrinkage. Additionally, it generally offers good impact strength and energy-absorbing characteristics, both of which increase as moisture content rises. By adding glass beads or fibers to the material, plastic manufacturers can improve its mechanical and thermal performance even further. Glass-filled nylon 6 is typically used in applications that require a tough and wear-resistant material with excellent lubrication properties.   

What's Available at Emco Plastics?

At Emco Industrial Plastics, we distribute a wide range of plastic materials. Our glass-fiber nylon 6 material offerings are SUSTAMID® 6G GK and SUSTARIN® C MDT.


SUSTAMID® 6G GK has the following properties:

  • Density: 0.0419 lb/in3
  • Water Absorption: 2.0%
  • Hardness, Shore D: 83
  • Tensile Strength, Yield: 10,200 psi
  • Elongation at Break: 5.0%
  • Modulus of Elasticity: 580 ksi
  • CTE, Linear: 3.3 µin/in-°F
  • Specific Heat: 0.382 BTU/lb-°F
  • Thermal Conductivity: 1.87 BTU-in/hr-ft²-°F
  • Melting Point: 424° F
  • Maximum Service Temperature, Air, Long-Term: 230° F
  • Maximum Service Temperature, Air, Short-Term: 338° F
  • Deflection Temperature at 1.8 MPa: ≥212° F
  • Minimum Service Temperature, Air: 14° F
  • Flammability, UL94: HB


SUSTARIN® C MDT exhibits the following characteristics:

  • Density: 0.056 lb/in3
  • Water Absorption: 0.2%
  • Hardness, Shore D: 82
  • Tensile Strength, Yield: 9,500 psi
  • Elongation at Break: 10%
  • Modulus of Elasticity: 450,000 psi
  • CTE, Linear: 5.40 x 105 in/in/°F
  • Melting Point: 334.4° F
  • Maximum Operating Temperature, Long-Term: 180° F
  • Maximum Operating Temperature, Short-Term: 300° F
  • Deflection Temperature: 212° F
  • Flammability, UL94: HB

We do not claim to represent all of the manufacturers or trade name products listed above. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information about our glass-filled nylon offerings, contact us today.

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

Contact us today for your fabrication and machining needs!

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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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