HPMC K4M and Hydroxyethyl Cellulose (HEC), and HEMC, for dental, food, cosmetics, pharma ... , for tile adhesive application HPMC K4M and Hydroxyethyl Cellulose (HEC), and HEMC, for dental, food, cosmetics, pharma, ... degree of substitution: 1.8-2.5. 2. viscosity:40000. 3. used as additive for emulsion paintHEC ... modifier, protective colloid, stabilizer, water-loss controller HEC (Hydroxy Ethyl Cellulose)