Process energy / dust
Mills, fibres, isocyanates, metal fume or silica — name the actual agent.
Aramid · Aromatic polyamide pulps and filaments — ballistic packs, hot-gas filtration and asbestos replacement.
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.
Mills, fibres, isocyanates, metal fume or silica — name the actual agent.
Corrosion, moisture, UV or creep silently retire sections.
Smoke, drip, fibres or toxicants depend on chemistry.
Handling injuries are more common than brochure failures.
The wrong grade is the most expensive hazard.
inherently FR vs commodity PA
Assemblies (EI, R, Type X) are not implied by the material letter.
EN 13501, ASTM E84, ISO 5660, KS F 2271 — they do not equal each other.
Clothing FR and steel R-ratings are different professions.
Primary production is energy-heavy; ask for a route, not a slogan.
Additives, dusts and processing aids (not always the polymer backbone) drive regulation.
Process water, leachate or moisture swelling.
Sortability beats theoretical recyclability.
Grade mix-ups scrap lots.
Fibres, isocyanates, UV, sharp edges — not a generic “chemicals” pictogram.
Coatings and cavities change the letter.
Installation is in the specification.
Codes move. Recheck KS, JIS, EN, NFPA and IBC editions for the job’s jurisdiction.
Seed-hair cellulose that dressed the industrial revolution — still the comfort fibre of daily wear.
Overall 44 🐑Crimped keratin that traps still air — suiting, carpets and a quietly decent fire story among apparel fibres.
Overall 53 🦋A kilometre-class animal filament — luxury cloth, sutures and a template for bio-inspired fibres.
Overall 41 🎽The dominant apparel polymer — bottle-grade PET spun into staple that dries fast and sheds microfibres.
Overall 49 🪢Carothers’ polyamide — stockings, tyre cord, climbing rope and a melt-drip fire personality.
Overall 48