Nomex® Meta-Aramid: Heat & Flame Resistant

Key Features of Nomex® Meta-Aramid:

  • Excellent heat & flame resistance 
  • High chemical resistance
  • Low thermal shrinkage
  • Self-extinguishing flame retardant properties
  • Soft-hand yields good textile properties


History
Originally called HT-1, Nomex® was first developed in the 1960’s and made commercially available in 1967 by DuPont™.  It was first used as fabric for race-car driver suits.

Composition
Similar to Kevlar®, Nomex® is an aromatic polyamide.  The “Meta” linkage position of the aromatic groups differs from that of Para-Aramids.  The chemical bonds are zig-zag in configuration, resulting in a lower tensile and modulus fiber compared to Kevlar®. 

Nomex® is flexible and higher in elongation however, making it an ideal textile yarn for fabrics. 


FIBER-LINE® Enhancing Processes for 
Nomex®:  


FIBER-LINE® Nomex®
 Products:

Manufacturer
DuPont™


Common Types & Deniers
T-430: Filament Yarn
Deniers: 200, 1200, 1600, 2400

Nomex® Meta-Aramid Bare Fiber Performance

Abrasion Resistance
Yarn on Yarn Abrasion
Ultraviolet (UV) Resistance
Flame Resistance
Chemical Resistance (Acid)
Chemical Resistance (Alkali)
Chemical Resistance (Organic Solvent)

CHEMICAL COMPATIBILITY
Chemical Resistance to Acid: Strength loss in H2SO4 below acid dew point.
Chemical Resistance to Alkali: Good at room temperature but degraded by strong alkalis at high temp.

Nomex® Meta-Aramid Data

Standard Modulus

Property UOM Value
Breaking Tenacity g/d 5.0
Specific Gravity Ratio 1.38
Elongation @ Break % 30.0
Tensile Modules g/d 125
Moisture Regain* % 4.5
Skrinkage*** % .4
Melt Point N/A

* Equilibrium moisture regain @ 55% RH    ** Creep @ 40%-58% ultimate tensile strength    *** Shrinkage in dry air @ 177 C for 30 minutes


This data is provided for informational purposes only, and does not constitute a specification. FIBER-LINE makes no warranty, express or implied, that the product conforms to these values. Contact your FIBER-LINE representative for exact product details which conform to your specific requirements.