Polytetrahydrofuran CAS 25190-06-1 PolyTHF； PTHF

Certificate of Analysis-COA 

 Applications 

1. Spandex / Elastane Fibre — dry-spun and melt-spun elastane, stretch fabrics, hygiene and sportswear: The soft segment that defines spandex performance. Its narrow molecular weight distribution and absence of monofunctional ends give the fibre high elongation, rapid elastic recovery and better resistance to fatigue and heat setting than conventional polyether polyols.

2. Thermoplastic Polyurethane (TPU) — footwear, film and sheet, cable jacketing, hose, transparent parts: PTMEG-based TPU delivers the combination that polyester-based TPU cannot: excellent hydrolysis resistance in hot humid service, low-temperature flexibility and outstanding rebound. That is why it dominates applications that must survive washing, sweat and tropical climates.

3. PU Coatings, Adhesives & Sealants — high-performance coatings, laminating adhesives, reactive sealants: Contributes flexibility, adhesion and hydrolytic stability to moisture-cure and two-component systems, and holds mechanical properties through ageing. Well suited to adhesives bonding flexible substrates that see humidity and temperature cycling.

4. Copolyester-Ether Elastomers (COPE) — engineering thermoplastic elastomers, automotive and industrial parts: As the polyether segment in segmented copolyester elastomers, it provides the elastomeric recovery while the hard polyester segments give strength and melt processability. Delivers excellent flex-fatigue life and low-temperature toughness.

5. Waterborne PU Dispersions & Synthetic Leather — textile coatings, synthetic leather, footwear adhesives: Used to build aqueous polyurethane dispersions that combine softness with hydrolysis resistance, free of the solvent load of conventional systems. Well matched to synthetic leather and technical textile coatings that must stay flexible through repeated flexing.

 Quality Assurance 

Every batch of chemicals leaves our factory with complete laboratory documentation — not a promise, but verifiable test data. From incoming raw material inspection to finished-goods release, each batch is tested against published specifications, and a Certificate of Analysis (COA) accompanies every single shipment. What you order is exactly what we test — and what we ship.

Tested by our in-house ISO 9001:2015 laboratory. Verified independently by third-party labs on request (SGS / BV / Intertek). Traceable from raw material to your warehouse.

 Packaging 

Liquid plastic drums

Liquid tonnes

Liquid iron drums

Export-grade packaging, custom labels

Solids (woven bags/cardboard drums/ton bags)

Liquids (plastic drums/IBC/ISO tanks)