... Cellulose(HEMC), hydroxyethyl Cellulose(HEC), Redispersible emulsion powder(RDP), and the cellulose ether derivatives. Shandong ... hydroxyethyl Methyl Cellulose(HEMC), hydroxyethyl Cellulose (HEC), Redispersible emulsion powder(RDP).Structural formula:R= -H, -CH3, -CH2CHOHCH3, ... of building materials like dry powdermortar, water-resistant putty powder (Paste) for inner and outer walls, binder, ...