AF
Teijinconex® KB Stretch-Broken Yarn
Teijin Aramid ? META
Manufacturer page / TDSDescription
Stretch-broken meta-aramid yarn developed for outstanding strength, durability and long-term heat resistance.. Product form: Stretch-broken meta-aramid yarn. Thermal/service data: Thermal resistance >400°C; long-term heat resistance. Official source: EX-META-TEIJIN
Comparative overview
Aramid fiber — Meta-aramid thermal/protective fiber
Strengths: Inherent flame resistance, electrical insulation and thermal stability without melting or dripping.
When to use: Select for protective clothing, fire barriers, filtration, electrical insulation and aerospace interiors rather than maximum tensile reinforcement.
Key tradeoffs: Lower tensile structural performance than para-aramid; moisture uptake and compression limitations must be considered.
Qualitative ratings (1–10 scale)
| Relative cost | 6/10 — Moderate–high — specialty protective-textile fiber, but produced at larger scale than PBO or ceramic fibers. |
|---|---|
| EM transparency | 9/10 — Excellent — electrically insulating and generally RF transparent. |
| Temperature / fire resistance | 8/10 — Very high — excellent heat/flame resistance for an organic fiber and retains protection under repeated thermal exposure. |
| Impact / penetration resistance | 4/10 — Moderate — good textile toughness, but much lower tenacity and ballistic efficiency than para-aramid. |
| Electrical / thermal conductivity | 1/10 — Very low — electrically insulating and a poor heat conductor. |
| Specific tensile strength | 2/10 — 2/10 | 507.2 kN·m/kg | Family estimate |
| Atmospheric durability | 6/10 — Good — strong heat and chemical resistance for an organic fiber, although prolonged UV exposure can still cause discoloration and property loss. |
| Sustainability (CO₂e) | 6/10 — 9.50 kg CO₂e/kg fiber — Medium emissions — data quality: Low |
Technical properties
Applications and processing
Automotive hose reinforcement; durable high-temperature textile structuresHose reinforcement; industrial textile and heat-resistant composite conversion