As we all know, hydroxypropyl methyl cellulose is made from raw material refined cotton after a series of processing. Among them, in addition to different quality, it is also divided into hot melt type and instant type.
Hot melt hydroxypropyl methylcellulose is what we usually use in gypsum, putty powder, etc., it needs to be dissolved at a certain temperature.
Instant type hydroxypropyl methyl cellulose. Also called cold water instant type. Add it to water at room temperature, it will also decompose quickly, because it is treated with glyoxal surface, can be quickly dispersed in cold water. It is used in construction and daily necessities.