Hydroxypropyl methyl cellulose (HPMC) is a natural polymer material cellulose as raw material, through a series of chemical processing made of non-ionic cellulose ether. They are an odorless, tasteless, non-toxic white powder that swells into a clear or slightly cloudy colloidal solution in cold water. With thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gel, surface, water retention and protection of colloidal properties. Hydroxypropyl methyl cellulose, methyl cellulose can be used in building materials, coating industry, synthetic resin, ceramic industry, medicine, food, textile, agriculture, daily chemical and other industries.