Ethylene Glycol ANTIFREEZE GRADE 1,2-Ethanediol 107-21-1 Equistar Chemicals North America South and Central America Asia / Pacific Glycol Monomers Coatings >> Powder Coatings Inks Automotive OEM INKS Monoethylene Glycol antifreeze grade is a colorless, odorless, hygroscopic, slightly viscous liquid, miscible with water in all proportions. This grade is used as a major component in antifreeze and engine coolant formulations. Antifreeze grade EG is a major component in the manufacture of automotive engine coolants. Glycol monomer. Colorless, odorless, and slightly viscous liquid, more hygroscopic than glycerol. Used in the manufacture of automotive engine coolants.