Product Name: PTMEG 2000 (Poly(tetramethylene ether) glycol, MW 2000)
Synonyms: Polytetramethylene Ether Glycol 2000, Poly THF 2000, PTMG 2000
Molecular Formula: HO–(CH₂CH₂CH₂CH₂–O)ₙ–H
CAS Number: 25190-06-1
Average Molecular Weight: 2000 g/mol
Appearance: Colorless to pale yellow transparent viscous liquid
Packaging: 200kg steel drums / IBC totes / ISO tanks
Origin: China
🔬 Product Overview
PTMEG 2000 (Poly THF 2000) is a linear, bifunctional polyether diol derived from tetrahydrofuran (THF). With an average molecular weight of 2000, it is widely recognized for its excellent mechanical properties, low glass transition temperature, high flexibility, and hydrolytic stability, making it an essential raw material for the production of high-performance thermoplastic polyurethane (TPU), cast polyurethane (CPU), spandex (elastane) fibers, and polyester polyurethanes.
Our PTMEG 2000 features ultra-low moisture content, tight molecular weight control, and high purity, ensuring superior consistency in demanding applications.
✅ Key Features and Benefits
High Flexibility: Outstanding elongation and resilience at low temperatures
Superior Hydrolysis Resistance: Ideal for applications exposed to water or humidity
Low Tg (~-75°C): Excellent performance in cold environments
Good Compatibility: Works with MDI, TDI, and aliphatic diisocyanates
Excellent Mechanical Strength: Enhances tear resistance and elasticity
Reliable Processability: Consistent molecular structure for stable PU reactions
📊 Technical Specifications
| Item | BQ250 | BQ650 | BQ1000 | BQ1400 | BQ1800 | BQ2000 | BQ3000 |
| Molecular weight | 250±25 | 650±25 | 1000±50 | 1400±50 | 1800±50 | 2000±50 | 3000±100 |
| Viscosity(40℃ cp) | 50 | 205 | 270 | 660 | 1215 | 1225 | 1350 |
| Index of refraction(nD25) | 1.462 | 1.462 | 1.463 | 1.463 | 1.464 | 1.464 | 1.464 |
| Melting point(Tm,℃) | -5 | 19 | 24 | 26 | 28 | 32 | 35 |
| Hydroxyl(mgKOH/g) | 408.0-498.7 | 166.2-179.5 | 106.9-118.1 | 77.4-83.1 | 60.6-64.1 | 54.7-57.5 | 36.2-38.7 |
| Water content(wt%,ppm) | 250max | 200max | 200max | 200max | 150max | 200max | 200max |
Storage Stability12 months in sealed container
🔧 Typical Applications of PTMEG 2000
TPU (Thermoplastic Polyurethane): Film, tubing, cable jacketing, seals
Spandex/Elastane Fibers: Soft, stretchable synthetic fibers for textiles
Cast Polyurethanes (CPU): Wheels, rollers, high-performance parts
Adhesives and Sealants: Flexible and durable PU-based bonding systems
Coatings & Elastomers: Industrial-grade flexible coatings, linings
Automotive & Electronics: Durable parts requiring flexibility and chemical resistance
🌐 Keywords Included
PTMEG 2000 supplier
Polytetramethylene ether glycol 2000
Buy PTMEG online
Poly THF 2000 for TPU production
High molecular weight PTMEG
PTMEG for spandex manufacturing
PTMEG diol polyurethane raw material
Flexible polyether diol
Cast polyurethane elastomer base polyol
Low moisture PTMEG 2000 China manufacturer
🌍 Why Choose Our PTMEG 2000?
🧪 Advanced Quality Control – In-house lab testing for every batch
🏭 Factory Direct Pricing – Cost-effective, bulk supply for industrial use
🚢 Global Logistics – Export-ready with REACH, ISO, RoHS certifications
📦 Flexible Packaging Options – Drums, IBCs, or ISO tanks
💼 Expert Technical Support – Custom formulation advice available
📩 Request a Quote or Sample Now
Whether you're producing TPU pellets, spandex yarns, adhesives, or elastomers, we provide stable, high-purity PTMEG 2000 tailored for your application needs. Contact us for technical data sheets (TDS/MSDS) or a free sample to begin evaluation.
📧 Email: greilyn@beiqiao.net
📞 Phone/WhatsApp: +86-18853364460
Partner with a reliable PTMEG 2000 supplier – optimize your polyurethane system performance today!
Hot Tags: molecular weight 2000 ptmeg polytetramethylene ether glycol, China molecular weight 2000 ptmeg polytetramethylene ether glycol manufacturers, suppliers, factory, flexible polyurethane Base Polyether polyols for Sponge Foam, polyols used for Floor Coating, Chemical ppg polyether polyols for adhesives, Pipe Used Blend Polyol, TPU Hot Melt Granules For Phone Case, PU Foam Adhesive Polyurethane Adhesive For glass
