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Fiberglass yarn can possess high strength and resistance to heat and chemicals.

fibreglassOne may argue that fiberglass, a silica based material, is a natural fiber, but fiberglass must be highly processed before it can be useful as a yarn. Fiberglass is very brittle and difficult to work with. It does not absorb water and has very low elongation.

Fiberglass yarn offers:
  • High strength (when the fibers are in an oriented direction)
  • Heat resistant
  • Chemical resistant
  • High (2.48 to 2.54 g/cc) densities

Technical Data

Tenacity (g/denier) 15.3 - 19.8
Elongation at break (%) 4.8 - 5.7
Shrinkage at 177°C (%) N/A
Melting point (°F) Softens at 1,220
In flame Softens, can change shape
After flame Hardens
Chemical resistance Fair resistance to acids and bases
Specific gravity (g/cc) 2.49
Moisture regain (%) None
Disclaimer: Values are only a guide. Actual values depend on manufacturer and exact type of yarn. Please contact our engineering team for specific values as they relate to your application.

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Need help finding
the right product?

Cut your research time in half by
downloading our Webbing 101 Guide. Download eBook

Inside, we highlight topics such as:

  • Common Specifications: (Mil-Spec, PIA, & UL)
  • Fabrication Methods: (Braiding, Jacquard Loom, Shuttle Loom, etc.)
  • Weave Types: (Basket, Plain, Satin, Twill)

Additional Resources

Understanding the  Versality of 3D Woven  CompositesDownload eBook Benefits of shuttle  Loom WeavingDownload eBook

Need help finding
the right product?

Cut your research time in half by
downloading our Webbing 101 Guide. Download eBook

Inside, we highlight topics such as:

  • Common Specifications: (Mil-Spec, PIA, & UL)
  • Fabrication Methods: (Braiding, Jacquard Loom, Shuttle Loom, etc.)
  • Weave Types: (Basket, Plain, Satin, Twill)

Additional Resources

Understanding the  Versality of 3D Woven  CompositesDownload eBook Benefits of shuttle  Loom WeavingDownload eBook