Introduction to Hydroxyethylcellulose (HEC) Hydroxyethylcellulose (HEC) is a non-ionic, water-soluble polymer derived from natural cellulose through etherification with ethylene oxide. Its polymer backbone gives it high versatility as a thickener, protective colloid, binder, and rheology modifier across water-based systems. Because it is non-ionic, HEC remains stable over a broad pH spectrum and demonstrates exceptional compatibility […]