Hydroxy Propyl Methyl Cellulose (Hpmc Powder) A white, Yellowish-white granules, hygroscopic after drying. It is a cellulose ether, which is based on methyl cellulose. It has several properties in Construction Industries Like Cement Based Wallputty, Tile Adhesives, Grouts etc. Features: Increased Water Retention Development of The Cement Mortar Increase Open Time Improve The Workability Typical Applications Are: Cement Base Wallputty Tile Adhesives Grouts Ready Mix Plaster Self Levelling Floor Compound Block Joint Mortar Crack Filler Etc Packaging: 25kg Bags.