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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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  • Fabrication Methods: (Braiding, Jacquard Loom, Shuttle Loom, etc.)
  • Weave Types: (Basket, Plain, Satin, Twill)

Additional Resources