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👨‍🚒How it is made

Nomex · DuPont’s meta-aramid — fire-fighter turnout, electrical paper and a char that does not melt-drip like nylon.

At a glance
Score intensity

Darker cells mean a higher score for this topic on that metric.

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Quick answers

Is Nomex non-combustible?

Declared reaction class in this atlas: inherently FR textile. Assemblies still need resistance tests.

Does Nomex insulate?

Thermal mark 48/100 versus the atlas. Conductivity note: low (fibre); papers electrically insulating.

What is the density band?

~1.38 g/cm³

How is it made?

Origin story: DuPont 1960s (United States).

Can it be recycled?

Circularity mark 36/100 — editorial, route-specific.

Typical melting or failure heat?

does not melt; decomposes ~400 °C+

heat 88 · fire 94

Start with this section - How it is made

Making Nomex is a chain: feedstock, conversion (DuPont 1960s), forming, heat, finish, install.

Skip a step and the properties chapter is describing a different object.

Process steps

01 Feedstock

Ore, monomer, fibre, mineral or scrap that can legally become Nomex.

02 Conversion

DuPont 1960s

03 Forming

Cast, spin, weave, sinter, foam, laminate or coat — the step that sets anisotropy.

04 Heat / cure

Temper, vulcanise, calcine or dry: skip it and the datasheet is fiction.

05 Finish

Coatings, sizings, facers, galvanizing, anodising, painting.

06 Install

Fasteners, adhesives, DFT, compression, dryness — site quality is a material property.

Routes

Primary

Virgin route around United States.

Recycled / secondary

Recycling exists but quality or energy often disappoints.

Specialty

High-spec grades leave the commodity mill.

Site-applied

Coatings, sprays, casts — the factory is sometimes a jobsite.

Diagrams

Nomex process path

Feedstock to installed product.

  1. Feed — in
  2. Convert — mill
  3. Form — shape
  4. Finish — coat
  5. Install — out
  6. Spec — code
  7. Scrap loop — rec

Nomex heat & fire

Energy in, class out.

  1. Heat — in
  2. Nomex — mat
  3. λ / char — out
  4. Ignition — fire
  5. Euroclass — class
  6. Assembly — sys

Hard limits

Envelope

Melting/softening does not melt; decomposes ~400 °C+; conductivity low (fibre); papers electrically insulating.

Environment

Moisture, UV, chlorides, alkalis or oxygen — pick the one that actually kills Nomex.

Code

Fire class inherently FR textile is a starting letter, not a wall rating.

Process energy and scrap quality belong in the carbon passport, not in a footnote.

Keep exploring

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