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TERATHANE® PTMEG serves as the premium soft segment in highly demanding applications. Below 650 molecular weight, it is a liquid at room temperature. Above 1000, it is a low-melting waxy white solid. The product reacts with isocyanates or organic acids to form a variety of elastomers such as polyurethanes, copolyesters and polyamides.

Whether you call it polyether glycol, PTMO or PTMG, TERATHANE® PTMEG is a family of linear diols with hydroxyl groups that are separated by repeating tetramethylene ether groups. For example, in TERATHANE® 1000 polyether glycol there is an average of 14 repeating groups whilst TERATHANE® 2000 consists of about 27.

This versatile ingredient can be used to help create end products ranging from industrial tires and belts to cable jacketing, protective coatings, hoses, medical tubing, adhesives and sealants.


Hydrolysis Resistance

Elastomers that are exposed to extreme moisture (e.g., marine coatings, pipe linings, etc.) retain their properties longer when made with TERATHANE® PTMEG.

Low-Temperature Properties

Products that must perform in cold conditions (e.g., drive belts, ski boots, snowmobile parts, etc.) retain their elasticity at extremely low temperatures when made with TERATHANE® PTMEG.

Dynamic Properties and Resilience

Casters, tires and wheels run faster, cooler and longer when made with TERATHANE® PTMEG.


Polymers for industrial coatings, slurry pipelines, hydrocyclones and other demanding applications show outstanding resistance to impingement abrasion when made with TERATHANE® PTMEG.

Product Consistency and High Purity

The LYCRA Company produced TERATHANE® PTMEG is recognized in industry globally for its performance in the most demanding elastomer applications such as high quality Spandex fiber production and Thermoplastic polyurethanes (TPU).