... preserving agent, film forming agent in construction, building materials, dispersion coating HPMC SPECIFICATIONPRODUCTSPECIFICATIONSHidroxypropyl Methylcellulose (HPMC) ... water preserving agent, film-forming agent in construction, building materials, dispersion coating, wallpaper paste, polymerization aids, ... used in petroleum drilling and daily-use chemicals.Packing, transport and storage: In 20kgs ...