Process energy / dust
Mills, fibres, isocyanates, metal fume or silica — name the actual agent.
Darker cells mean a higher score for this topic on that metric.
Strength94
Heat resistance82
Fire performance80
Insulation36
Workability40
Circularity38
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Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
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
heat 82 · fire 80
Safety here is encyclopedia, not a workplace assessment. Name the agent: dust, isocyanate, fibre, fume, moisture, fire.
Fire class inherently FR vs commodity PA is reaction language unless an assembly test is cited.
Hazards
In service
Corrosion, moisture, UV or creep silently retire sections.
Fire products
Smoke, drip, fibres or toxicants depend on chemistry.
Cut / puncture
Handling injuries are more common than brochure failures.
Mis-specification
The wrong grade is the most expensive hazard.
Fire class
Reaction
inherently FR vs commodity PA
Resistance
Assemblies (EI, R, Type X) are not implied by the material letter.
Test families
EN 13501, ASTM E84, ISO 5660, KS F 2271 — they do not equal each other.
People vs structure
Clothing FR and steel R-ratings are different professions.
Environment
Carbon / energy
Primary production is energy-heavy; ask for a route, not a slogan.
Toxics / fibres
Additives, dusts and processing aids (not always the polymer backbone) drive regulation.
Water
Process water, leachate or moisture swelling.
End of life
Sortability beats theoretical recyclability.
Handling
Store dry and labelled
Grade mix-ups scrap lots.
PPE for the actual agent
Fibres, isocyanates, UV, sharp edges — not a generic “chemicals” pictogram.
Do not improvise fire class
Coatings and cavities change the letter.
Follow the WPS / DFT / compression
Installation is in the specification.
Codes move. Recheck KS, JIS, EN, NFPA and IBC editions for the job’s jurisdiction.
Keep exploring
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Overall 49 🪢Nylon
Carothers’ polyamide — stockings, tyre cord, climbing rope and a melt-drip fire personality.
Overall 48