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🧵 Textiles

🦺Aramid

Aromatic polyamide pulps and filaments — ballistic packs, hot-gas filtration and asbestos replacement.

Also called: para-aramid · Kevlar · Twaron

Aramid — Wikimedia lead image
Bodyarmor · CC BY-SA 3.0
At a glance
Score intensity

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

Score profile

Each bar is a 0-100 atlas score for this topic, not a timeline.

948280364038
Fire
Heat
Specs
Timeline

Milestones in order. This is history, not a weekly activity grid.

1965 Kwolek PPTA1971 Kevlar commercial1972 Nomex already1978 Twaron1980s Helmets & vests1990s Asbestos brakes2000s UHMWPE rivalry2010s Honeywell / Teijin capacity2010s Optical fibre cables2020s Recycling R&D
  1. Kwolek PPTA
  2. Kevlar commercial
  3. Nomex already
  4. Twaron
  5. Helmets & vests
  6. Asbestos brakes
  7. UHMWPE rivalry
  8. Honeywell / Teijin capacity
  9. Optical fibre cables
  10. Recycling R&D
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18 min read

Last reviewed Sources & creditsMedia creditsMethodology

heat 82 · fire 80

Start with this section - Origins & milestones

Fire role or insulation role

Pick the fire-performance reading or the insulation reading already scored on this material. Teaching marks — not a specification.

Atlas scores and on-page facts only. A named product test, thickness and assembly decide any real wall or garment. No lab stamp.

Open compare lab

Quick facts

PPTA para-aramidStar
~500 °CDecomp
Chars, little meltFire
Kevlar 29/49Icon
Ballistics / compositesUse
textilesFamily

Aramid is one of 32 materials in this atlas, grouped under textiles: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.

Scores compare Aramid with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.

Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.

Deep introduction

Deep dive: Aramid

Aramid (PPTA (para) / meta-aramid cousin Nomex) is a family of grades whose density ~1.44 g/cm³, heat band does not melt; decomposes ~500 °C, and fire letter inherently FR vs commodity PA.

What “the material” actually is

Aramid is sold as grades, not as a single substance. Chemistry PPTA (para) / meta-aramid cousin Nomex, density ~1.44 g/cm³, heat band does not melt; decomposes ~500 °C.

This atlas treats Aramid as a system: mill route, coatings, tests and the cavity it sits in.

Heat, fire and insulation

Conductivity note: low radial; fibre anisotropic. Insulation score 36/100 is relative to 32 entries — metals lose, VIPs and aerogels win.

Fire letter in editorial use: inherently FR vs commodity PA. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.

How it is made and used

Origin: DuPont 1965 Kwolek, United States. The process chapter follows feedstock → conversion → forming → finish → install.

Uses span buildings to defence / safety. Pairings matter: nomex.

Market and circularity

Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.

Circularity mark 38/100. Ask which scrap, which certificate, which year.

The profile

948280364038
Strength 94
Heat resistance 82
Fire performance 80
Insulation 36
Workability 40
Circularity 38

Fire role or insulation role

Pick the fire-performance reading or the insulation reading already scored on this material. Teaching marks — not a specification.

Atlas scores and on-page facts only. A named product test, thickness and assembly decide any real wall or garment. No lab stamp.

Seven chapters

Fire mark or insulation mark first?

Decision walkthrough on Aramid: fire 80, insulation 36, and one fact already on file — not a code stamp.

  1. Read the fire-performance mark — Fire on this hub is 80/100 — teaching comparison among atlas materials.
  2. Read the insulation mark — Insulation is 36/100 — heat-flow story, not the same question as flame.
  3. Sit one published fact beside them — Quick fact on file: Star: PPTA para-aramid.
  4. Sustainability is not a fire skip — A high sustainability mark does not replace fire protection in a real assembly.
  5. Not a building-code rating — Named tests, thickness and build-up still decide compliance — this page is literacy only.

On Aramid, fire 80 and insulation 36 answer different jobs; Star: PPTA para-aramid grounds one real detail.

Editorial atlas marks. Not a code certificate or product approval.

Thermal mark or safety fact first?

Second lab decision on Aramid: heat-resistance 82 beside published thermal fact Conductivity — literacy, not a code stamp.

  1. Read the heat-resistance mark — Heat resistance on this hub is 82/100 — a thermal story, different from the fire/insulation pair.
  2. Sit one thermal fact beside it — Properties chapter lists Conductivity among published thermal rows.
  3. Heat resistance is not a fire skip — A high thermal mark does not replace named fire tests in a real assembly.
  4. Still not a building-code rating — Thickness, build-up and named tests decide compliance — this page teaches axes only.

On Aramid, heat 82 and Conductivity are a second thermal/safety reading after fire vs insulation.

Editorial atlas marks. Not a code certificate or product approval.

Heat line to keep

Choose the heat reading for Aramid.

Keep heat resistance 82.

A decision from printed marks. Not a building permit.

Frequently asked questions

Is Aramid non-combustible?
Declared reaction class in this atlas: inherently FR vs commodity PA. Assemblies still need resistance tests.
Does Aramid insulate?
Thermal mark 36/100 versus the atlas. Conductivity note: low radial; fibre anisotropic.
What is the density band?
~1.44 g/cm³
How is it made?
Origin story: DuPont 1965 Kwolek (United States).
Can it be recycled?
Circularity mark 38/100 — editorial, route-specific.
Typical melting or failure heat?
does not melt; decomposes ~500 °C
What should it be paired with?
nomex: The meta-aramid fire cousin.
Where is it specified?
Buildings, transport, energy and consumer goods — see the uses chapter.
Is the fire-performance score a building-code rating?
No. It is an editorial 0–100 teaching mark among materials in this atlas. A real wall or garment needs a named product test, thickness and assembly. This page is not a lab stamp.
When should I read insulation instead of fire?
Use the insulation pick when the question is heat flow — lining, loft, or a cold-bridge — and the fire pick when the question is how the same material behaves in flame. Both numbers already sit on this hub; they answer different jobs.
Does a high sustainability score mean I can skip fire protection?
No. Sustainability here is a relative atlas mark (growth, reuse, embodied story). Bamboo and timber can still char like wood. Fire protection stays a separate specification.
Why is bamboo missing in some languages?
A language URL is published only when the seven chapters are real prose in that language. Bamboo exists in English, Korean, Japanese, Chinese and Spanish. French, German, Portuguese and Russian stay withheld — earlier machine drafts leaked English, so those URLs are not opened.

Icons

Stephanie Kwolek

Stephanie Kwolek

United States · 1965

Stephanie Kwolek is a reference point in the public image of Aramid.

Kevlar vest

Kevlar vest

United States · 1970s–

Kevlar vest is a reference point in the public image of Aramid.

3

Twaron

Netherlands / JP · 1978–

Twaron is a reference point in the public image of Aramid.

F1 fuel tank

F1 fuel tank

Global · 1980s–

F1 fuel tank is a reference point in the public image of Aramid.

Sailing cables

Sailing cables

Global · 1990s–

Sailing cables is a reference point in the public image of Aramid.

6

Hot-gas filter bag

Global · 1980s–

Hot-gas filter bag is a reference point in the public image of Aramid.

Brake pulp

Brake pulp

Global · 1990s–

Brake pulp is a reference point in the public image of Aramid.

8

Helmet shell hybrid

Global · 2000s–

Helmet shell hybrid is a reference point in the public image of Aramid.

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Head-to-head

Same family or rival physics — pick a duel.

Similar materials

Closest neighbours on the six atlas axes — strength, heat, fire, insulation, workability and circularity.

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