Ethylene glycol diacetate (EGDA, CAS 111-55-7) is a colorless, high-boiling, low-odor diester solvent used across four main industries: as a coalescing and film-forming solvent in industrial coatings and paints, as a resin solvent in foundry applications, as a carrier in printing inks, and as a safe cleaning agent. Because it combines a high boiling point with a mild odor and a favorable eco-toxicity profile, EGDA is increasingly specified as an eco-friendly substitute for DBE (dibasic esters) and other traditional solvent blends.

Sodium thioglycolate (CAS 367-51-1), also known as sodium mercaptoacetate or thioglycolic acid sodium salt, is a white crystalline powder used in depilatory cosmetics, perm solutions, rubber processing, and as the STG flotation depressant for copper-molybdenum separation.