Hydroxypropyl methylcellulose, also known as hypromellose and cellulose hydroxypropyl methyl ether,the abbreviation is HPMC,has the appearance of a white powder. It uses highly pure cotton cellulose as a raw material and is specially formulated under alkaline conditions.
Gypsum is a monoclinic mineral and is a widely used industrial material and building material.
When HPMC is added to gypsum, it can enhance the flow properties of gypsum, increase water retention, and improve the adhesion of gypsum. The combination of plaster and HPMC is a very good partner.Both chemical properties are non-toxic and non-irritating, but you must avoid contact with the skin and eyes when using them.