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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

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

Seven chapters

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.

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.

Toggle icons on and off — every bar rescales to the leader of your selection.

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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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