Answer: hot water solution method: because HPMC is not dissolved in hot water, so the initial HPMC can be evenly dispersed in hot water, then quickly dissolved when cooling, two typical methods are described as follows:
1) Put the required amount of hot water in the container and heat it to about 70℃. Under the slow stirring gradually add hydroxypropyl methyl cellulose, HPMC began to float on the surface of the water, and then gradually form a slurry, the slurry cooling under the stirring.
2) Add 1/3 or 2/3 of the required amount of water into the container, and heat to 70℃, according to the method of 1), disperse HPMC, prepare hot water slurry; Then add the remaining amount of cold water to the hot slurry, stirring and cooling the mixture.
Powder mixing method: HPMC powder and a large number of other powdery material ingredients, mixing fully with a blender, then add water to dissolve, HPMC at this time can dissolve, and do not stick together, because each small corner, only a little bit of HPMC powder, water will dissolve immediately. - Putty powder and mortar production enterprises are using this method. [Hydroxypropyl methyl cellulose (HPMC) is used as thickening agent and water retaining agent in putty mortar.]
The Difference between Methyl Cellulose and HPMC

hpmc que es.
Wie gefährlich ist HPMC?

ashland hydroxyethyl cellulose. It helps to improve the flow and leveling of the paint, making it easier to apply and ensuring a smooth and even finish. HEC also enhances the adhesion of the paint to the surface, helping to improve its durability and longevity.
Hydroxypropylmethylcellulose (HPMC) is a semi-synthetic cellulose-based polymer which is used as a thickening agent, an emulsifier and as a stabilizer in a variety of products including food, pharmaceuticals and cosmetics.

Also known as Hypromellose or HPMC


Answer: The powder loss of putty powder is mainly related to the quality of hydrated lime (calcium hydroxide) and has little to do with HPMC. A low calcium content in hydrated lime and an inappropriate ratio of CaO to Ca(OH)2 can both cause powder loss. If there is some relation to HPMC, it would be that poor water retention of HPMC can also cause powder loss. For specific reasons, please refer to question 9.


In topical drug formulations, HPMC gel acts as a thickener, increasing the viscosity of creams and ointments. It helps improve the spread of active pharmaceutical ingredients (APIs) on the skin and prolongs their contact time.

