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long fiber reinforced thermoplastic composites

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Velocity® High Flow Long Fiber Reinforced Thermoplastic Composites

Velocity® high flow nylon long fiber composites from PlastiComp utilize a proprietary chemistry to reduce viscosity and allow composites highly loaded with long glass or carbon fiber reinforcement to be easily processed.
  • Increase flow lengths up to 30% in long fiber nylon composites
  • Easily fill thin wall sections with reduced injection pressure and shorter molding cycle times
  • Enhance aesthetics with resin rich, fiber-free surfaces
Composites with high fiber content can be problematic to process due to their high viscosity. Long flow lengths, especially in thin wall sections, can freeze off before completely filling.

Higher processing temperatures and higher injection pressures, usually the prescribed remedies, result in longer cycle times and fiber length attrition.

With Velocity wall sections of 0.075” (2 mm) or less flow up to 30% further; molds can be completely packed out with 40% less pressure at 30–40 °F (17–22 °C) lower temperatures; resulting in cycle time reductions of up to 25% – creating savings that decrease operational costs for processors and per part costs for OEMs.

Velocity achieves these flow advantages at an equivalent level of mechanical performance expected from long glass or carbon fiber reinforced nylon 6 and 6/6 composites.

You will be able to deploy new designs with thinner wall sections or shapes that are more complex and utilize less material by taking advantage of the expanded performance envelope higher fiber loadings provide.

Aesthetically, Velocity produces a resin rich surface free of fibers that results in richer color and smooth glossy surfaces can be achieved in polished molds. The ability to mold high fiber content materials and obtain cosmetically defect-free components will minimize secondary finishing operations.


By giving you the means to fill thin walls with ease – and look good doing it – Velocity will enable you to use long fiber reinforced nylon composites with confidence.

Cost Savings Benefits

  • Increase productivity with shorter injection molding cycle times
  • Decrease operating costs through lower molding temperatures
  • Reduce maintenance due to diminished equipment resource utilization
  • Fewer rejects from cosmetic imperfections
  • Use existing designs and tooling

Design Freedom Benefits

  • Lower part mass and material use with thinner wall sections
  • Eliminate assembly steps by creating more complex components
  • Reduce finishing operations due to better surface aesthetics
  • Expand performance envelope with wider range of easy-to-process composites

Technical Data Sheets

Complēt long fiber composite pellet products are available in any resin from PP to PEEK as part of our material customization capabilities to meet specific performance requirements.
Velocity long fiber composites are available in nylon 6 and 6/6 polymers reinforced with glass, carbon, and other specialty fibers. PlastiComp can tailor the performance of our long fiber products to meet your specific application requirements.

Additional Resources

PlastiComp's Capabilities

Solution Collaboration
We work with you to design and make your products better

Custom Composites
We produce materials to your performance and design needs

Design & Analysis
We work with you to concept and ensure your parts perfom.

Processing & Forming
Quickly develop and maximizie long fiber’s benefits.


English SI Metric Test Method
Specific Gravity 1.60 1.60 ASTM D-792
Tensile Strength 32,000 psi 221 MPa ASTM D-638
Tensile Modulus 2,200 ksi 15172 MPa ASTM D-638
Tensile Elogation 2-3% 2-3% ASTM D-638
Flexural Strength 49,000 psi 338 MPa ASTM D-790
Flexural Modulus 2,400 ksi 16500 MPa ASTM D-790
Notched Izod Impact (72 °F / 22 °C) 6.0 ft·lb/in 320 J/m ASTM D-256
Notched Izod Impact (-60 °F / -51 °C) 13.0 ft·lb/in 694 J/m ASTM D-256
Un-notched Izod Impact 27.0 ft·lb/in 1440 J/m ASTM D-4812
DTUL @ 264 psi (1820 kPa) 475 °F 246 °C ASTM D-648
Rev 08/10
Product Literature

Product literature

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