Nomex® Meta-Aramid

Nomex® meta-aramid fiber is the optimal choice for products that require excellent temperature and flame resistance.  It's an ideal fiber for military, aerospace, and tough industrial applications. 

Our 100% genuine Nomex® fiber is supplied in a continuous multifilament configuration and precision wound on cardboard tubes for convenient handling and continued processing.  Additionally, each order includes product certification, guaranteeing the authenticity of your fiber purchase.

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*Nomex® fibers are not authorized for any medical applications.

Denier (g/9000m)
Length (ft)

About This Item

Nomex® Meta-Aramid Fibers Properties

PROPERTY 200 Denier 1200 Denier
Type Metabright Metabright
Break Strength 2.2 lbs (9.78 N) 13 lbs (57.8 N)
Diameter 0.159mm (0.0063") 0.390mm (0.0153")
Elongation  ~30% ~30%
% Finish1.2%1.3%

Nomex® Meta-Aramid Physical Properties

While not known for their strength like Kevlar®, Nomex® fibers offer a unique set of properties that make it desirable for a myriad of products and applications. Often times, Nomex® fibers are used in combination with higher strength fibers to help enhance flame and thermal resistance.  

Nomex® Meta-Aramid Resistance Guide

Meta-aramid fibers, such as Nomex®, exhibit excellent resistance to high temperatures, maintaining their mechanical properties even at elevated temperatures. This heat resistance makes them suitable for applications in thermal insulation and protective clothing. Additionally, meta-aramid fibers demonstrate good chemical resistance, enabling them to withstand short-term exposure to acids, alkalis, and many organic solvents without significant degradation.  Not advised for long-term chemical exposure.

This fiber will absorb atmospheric moisture up to 5% in weight. This fiber should be stored in a cool, dry room with low humidity. A desiccant bag was included with this fiber to prevent regain during transit and short-term storage at your facility.

Acid: Prolonged exposure to concentrated strong acids will cause degradation
Alkali: Degrades with prolonged exposure to Sodium Hypochlorite
Organic Solvent: Moderate degradation in Carbon Tetrachloride and Ethylene Glycol

Continuous Operating Temperature Range (°C): -196 to 204
Short Term Exposure (°C): 370
Degradation Temperature (°C): 300

Nomex® Meta-Aramid Property Guide

The table below represents the nominal mechanical properties of Nomex® fibers.  

Property Unit of Measure Metabright
Tenacity g/d
Tensile Modulus g/d
Specific Gravity ratio
Avg. Elongation %
Moisture Regain1 %
Melt Point °C
Decomp. Temp °C
Shrinkage2 %
< 0.40

1 Equilibrium moisture regain @ 55% RH

2 Shrinkage in dry air @ 177°C for 30 minutes

Nomex® Meta-Aramid Performance Properties

  • Heat Resistance: Nomex®-Meta Aramid fiber exhibits excellent heat resistance, retaining its structural integrity and performance at temperatures up to 370°C.

  • Flame Resistance: This fiber is inherently flame resistant, meaning it does not melt, drip, or support combustion in the air, ensuring protection in high-temperature environments.

  • Good Chemical Resistance: Nomex® fibers have good short-term resistance to many chemicals, including acids and alkalis, making them suitable for use in chemically harsh environments.

  • Radiation Resistance: Nomex demonstrates strong resistance to beta and gamma radiation as well as x-rays.

  • Dimensional Stability: The fiber maintains its shape and size even under extreme temperature variations, providing reliable performance and durability.

  • High Dielectric Strength: With high dielectric strength, Nomex® is an excellent insulator, making it ideal for electrical and electronic applications where insulation integrity is critical.

  • Good Hand/Soft Textile Feel: Despite its robust protective qualities, Nomex® offers a good hand and a soft textile feel, ensuring comfort for wearers in protective apparel.

  • Durability: Nomex® fibers are highly durable, offering long-lasting performance and resistance to wear and tear, making them suitable for demanding applications.

  • Low Thermal Shrinkage: The fiber exhibits low thermal shrinkage, maintaining its dimensions and structural properties even after exposure to high temperatures, which is essential for maintaining fit and performance in protective clothing.

Additional Information

Tube Size (Cardboard)
Wardwell 5/8" x 4"
500 FT
3.7" x 8.5"
5000 FT, 1 LB Spool

NOMEX® and KEVLAR® brand fibers are a registered trademark of E.I. Du Pont de Nemours and Company

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