Mono ethylene glycol is a commercially important raw material in manufacturing PET (polyethylene terephthalate) polyester (fiber, film, and bottle grade), one of ethylene glycol’s two primary chemicals, uses a large portion of total MEG production.

Mono ethylene glycol’s other significant use, a non-polymer one, is an antifreeze blending for liquid-cooled motor vehicles to lower the freezing point when mixed with water. DEG is used mainly as an intermediate in producing unsaturated polyester resin and as an alcohol component in polyurethane manufacturing.

TEG has similar properties to DEG and is frequently preferred when a less volatile compound is required. TEG is the preferred agent for drying natural gas and in other moisture-removing applications.