What are the key distinguishing attributes of PTMEG based polyurethane elastomers?

Outstanding hydrolytic stability (high temperature and humidity) Flexibility at low temperatures Excellent dynamic properties and high resiliency Good abrasion resistance, especially to impingement abrasion

What is the FDA compliance status of the PTMEG polyols?

PTMEG diols are listed as a-hydro-w-hydroxypoly-(oxytetramethylene), in the Code of the Federal Register. PTMEG polyols are acceptable indirect food additives and intermediates in the following regulation standards: 21 CFR 175.105 Adhesives 21 CFR 177.1590 Polyester Elastomers 21 CFR 177.1630 Polyethylene Phthalate Polymers 21 CFR 177.1680 Polyurethane Resins 21 CFR 177.2600 Rubber articles intended for repeated use

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Polytetramethylene Ether Glycol (PTMEG)

Gantrade is a leading global supplier of Polytetramethylene Ether Glycol (PTMEG).

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Polytetramethylene Ether Glycol (PTMEG) is the premier polyether polyols used worldwide in the manufacture of high-performance polyurethane elastomers. Known for its many performance attributes and processing advantages, PTMEG is used in a variety of applications across multiple industries, including polyurethane for oil and gas applications. These applications also include polyurethane resins, prepolymers, coatings, adhesives, cast polyurethane resins, and spandex fibers. For decades, Gantrade has been the supplier of choice to the world’s most technically demanding manufacturers, consistently meeting their needs for high performance polyurethane products.

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Polytetramethylene Ether Glycol (PTMEG)

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Product Name	CAS#	Molecular Weight (g/mol)	Acid Value (mgKOH/g)	Hydroxyl Value (mgKOH/g)	Color (APHA / Pt-Co Units)
PTMEG 0220	25190-06-01	195-245	Max. 0.05	458-575	Max. 40	all details
PTMEG 0650	25190-06-01	650±25	Max. 0.05	166-180	Max. 40	all details
PTMEG 1000	25190-06-01	959-1000	Max. 0.05	112-117	Max. 40	all details
PTMEG 1400	25190-06-01	1336-1457	Max. 0.05	77-84	Max. 40	all details
PTMEG 1800	25190-06-01	1726-1870	Max. 0.05	60-65	Max. 40	all details
PTMEG 2000	25190-06-01	1901-2117	Max. 0.05	53-59	Max. 40	all details
PTMEG 3000	25190-06-01	2877-3206	Max. 0.05	35-39	Max. 50	all details

Continuously Expanding

Gantrade is committed to meeting the growing demand for polytetramethylene ether glycol (PTMEG), ensuring businesses have dependable manufacturers available to meet their needs. Our PTMEG products provide the quality companies need for manufacturing a variety of products in the global market.

Gantrade is continuously expanding our product line to strengthen our portfolio and adding new chemistries to provide our customers with additional sources of competitive advantage.

Our experienced Sales, Marketing, Customer Service, Logistics, Product Stewardship and Technical teams respond swiftly to unique needs, delivering value and improving product performance to our customers. With a focus on innovation and customer success, Gantrade strengthens its presence in the market while providing high-quality solutions tailored to evolving industry requirements.

We maintain our own inventories in strategic locations in North America and Europe.

As a leading PTMEG supplier, Gantrade maintains strong inventories of PTMEG in the USA and Europe at multiple warehouse locations, which includes drums and 20 MT ISO tanks. Our robust network of ocean freighters, rail cars, road tank-trucks and barges, and supporting infrastructure enable us to be an agile and far-reaching supplier to our customers on a global scale.

To explore how Gantrade’s PTMEG portfolio can address your company’s unique needs, partner with Gantrade. Our team, armed with a wealth of technical knowledge and expertise, can guide you to the best solutions for your applications.

Gantrade’s partner for PTMEG is Dairen Chemical Corporation (DCC). DCC is the largest global producer of PTMEG with six individual production facilities. DCC is back integrated to propylene as the feedstock and 1,4-butanediol. As a leading PTMEG supplier, Gantrade maintains strong drum inventories of PTMEG in the USA and Europe at multiple warehouse locations, which includes drums and 20 MT ISO Tanks. We offer value in pricing, delivery, service, which includes technical service, and knowledge sharing. Our PTMEG polyols meet the highest quality standards.

PTMEG 650 has a softening point of 11°C (52°F) and can be a liquid at room temperature. PTMEG 1000, and the higher molecular weight grades are low-melting waxy white solids, with softening points starting at about 24°C (75°F). They must be heated to liquefy and discharge from drums or ISO Tanks. It is important that drums are rolled when re-melted to avoid segregation of the various molecular weight fractions that make up PTMEG. Gantrade can supply the viscosity temperature profiles for each of the grades of PTMEG diols.

Gantrade supplies PTMEG in 200 kg (441 lb) factory sealed iron drums and 20 MT (44,080 lb) bulk heated ISO tanks. The minimum order size is one drum. Sample sizes are 1 kg and 20 kg containers.

PTMEG 1000 and 2000 are the most common grades for general-purpose TPU applications. Lower molecular weights (650, 1000) provide easier processing and better hardness, while higher molecular weights (2000, 3000) offer superior elasticity, resilience, and low-temperature flexibility. For spandex fiber, PTMEG 1800-2000 is standard. Actual performance depends on your complete formulation, and we strongly recommend conducting application-specific testing and consulting our technical team to identify the optimal grade for your requirements.

Outstanding hydrolytic stability (high temperature and humidity)
Flexibility at low temperatures
Excellent dynamic properties and high resiliency
Good abrasion resistance, especially to impingement abrasion

Because of its linear chain design and unique crystallization behavior under stress, PTMEG enables TPU systems to maintain flexibility and mechanical integrity at low temperatures where many other polyols lose performance.

Yes. PTMEG can be tailored in molecular weight, viscosity, and physical form to meet the needs of different polyurethane formulations, enabling optimized performance in products ranging from flexible spandex fibers to abrasion-resistant wheels.

PTMEG enhances resistance to hydrolysis, mechanical wear, and low-temperature brittleness. This means products last longer under demanding conditions such as high humidity, repeated stress, or outdoor exposure.

PTMEG excels in hydrolysis resistance, stress crystallization, and low-temperature properties compared to PPG and polyester alternatives.

PTMEG polyols are non-hazardous, stable products with a low order of toxicity. Gantrade Corporation encourages its customers to have a comprehensive understanding of the health, safety, environmental and regulatory information on its products before handling and disposal. To obtain a Safety Data Sheet (SDS) and other handling information, please contact us using the contact form or call 201-573-1955. Always prevent electrostatic discharge and ensure adequate ventilation in the work and storage areas.

PTMEG manufacturing uses processed tetrahydrofuran and acid-catalyzed polymerization methods. Factors such as raw-material cost volatility, plant capacity expansions, and regional demand (especially in APAC) can influence lead times, pricing, and availability of different molecular-weight grades.

PTMEG diols are listed as a-hydro-w-hydroxypoly-(oxytetramethylene), in the Code of the Federal Register. PTMEG polyols are acceptable indirect food additives and intermediates in the following regulation standards: