DuPont meta-aramid
Commercial Nomex fibre development.
Nomex · DuPont’s meta-aramid — fire-fighter turnout, electrical paper and a char that does not melt-drip like nylon.
Milestones in order. This is history, not a weekly activity grid.
Darker cells mean a higher score for this topic on that metric.
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Declared reaction class in this atlas: inherently FR textile. Assemblies still need resistance tests.
Thermal mark 48/100 versus the atlas. Conductivity note: low (fibre); papers electrically insulating.
~1.38 g/cm³
Origin story: DuPont 1960s (United States).
Circularity mark 36/100 — editorial, route-specific.
does not melt; decomposes ~400 °C+
heat 88 · fire 94
Nomex did not arrive as a finished commodity. DuPont 1960s around United States still explains who makes it and which tests it sits in.
Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.
Commercial Nomex fibre development.
Early flight-suit and honeycomb papers.
Turnout gear shifts off untreated cotton/wool.
Calendered electrical insulation.
Meta-aramid underwear as motorsport default.
US turnout standards cite inherently FR fibres.
Para-aramid pilling/strength mix.
IEC 61482 workplaces.
Aero interiors, fire-smoke-toxicity.
Outer shells drop fluorochemicals.
Commercial Nomex fibre development.
Turnout gear shifts off untreated cotton/wool.
Meta-aramid underwear as motorsport default.
Para-aramid pilling/strength mix.
Aero interiors, fire-smoke-toxicity.
Calendered electrical insulation.
Para-aramid pilling/strength mix.
Outer shells drop fluorochemicals.
Knowing this timeline is how to read a mill certificate without treating Nomex as timeless.
CaSO4·2H2O panels that buy fire time by calcining — the everyday A2/A1 lining of interiors.
Overall 59 🧯Paints that swell into insulating char — the thin-film way to give steel an R-rating without bulky boards.
Overall 58 🌡️Spun refractory fibres for 1000–1400 °C — kiln linings, gaskets, and a respirable-fibre caution that AES grades try to ease.
Overall 62