- ▸ Soft-segment polyether diol for cast polyurethane elastomers and TPU
- ▸ Higher-MW grade for softer, more extensible elastomers and spandex fiber
- ▸ Imparts resilience, abrasion resistance and hydrolytic stability to PU systems
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →PTMEG reacts with di-isocyanates to form the flexible soft segment of a polyurethane, and the choice of molecular weight tunes the final mechanical balance. The ~2000 grade sits toward the higher-MW end, giving softer, more extensible elastomers and the elongation that spandex and dynamic-flex parts rely on. Beyond elastomers and fiber, PTMEG-based polyurethanes are chosen where parts must survive repeated flexing, abrasion and damp service, since the polyether backbone resists hydrolysis better than many polyester polyols. It is a clear-to-waxy material that is warmed and metered into prepolymer or one-shot systems
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 607-637-9
TSCA Inventory flag XU: a substance exempt from reporting under the Chemical Data Reporting Rule (40 CFR 711) (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12