manufactured · input
Crimped/end-rounded polyamide-612 monofilament used for premium toothbrush bristles (DuPont Tynex, Perlon Medex S); PBT filament is the value-tier substitute.
9
Source countries
2
Companies
1
Goods affected
0
Claims on record
What depends on it
1 essential American goods rely on nylon-612 toothbrush bristle filament somewhere upstream in their supply chain.
Where it comes from
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| JPJapan | 34% |
| MXMexico | 21% |
| DEGermany (Federal Republic of Germany) | 14% |
| CNChina | 9% |
| GBUnited Kingdom | 5% |
| TWTaiwan | 4% |
| ITItaly | 4% |
| VNVietnam | 2% |
| BEBelgium | 1% |
Who makes it
2 companies produce nylon-612 toothbrush bristle filament.
US chemical conglomerate (NYSE: DD). Divested its entire Aramids business (Kevlar + Nomex brands) to Arclin (TJC L.P.) for $1.8B; transaction closed April 1, 2026. DuPont invented Kevlar in 1965 (Stephanie Kwolek, Wilmington DE). After divestiture, DuPont retains no para-aramid production. The Spruance, Maydown, and Du Pont-Toray facilities are now operated by Arclin.
World-leading synthetic filament maker (PA6/610/612, PBT, PET); dental filaments Medex S (PA612) and Dentex S (PBT).
