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HPMC is widely used in building materials, coatings, synthetic resins, ceramics, medicine, food, textile, agriculture, cosmetics, tobacco and other industries. HPMC can be divided into: construction grade, food grade and pharmaceutical grade according to the application.

Hydroxypropyl methyl cellulose HPMC can be widely used in concrete, brick wall, block, gypsum wallboard, cement board and other substrate surface and ceramic tile, floor tile, wall brick, Mosaic, marble, culture stone and other direct paste materials.

Generally the viscosity is proportional to the water retention viscosity under 100,000.but viscosity more than 100,000 water retention rate basically does not increase.so not viscosity more quality better.

It depends on your usage

RDP has extremely outstanding bonding strength, improve the flexibility of mortar and have a long opening time, give the mortar excellent alkaline resistance, improve the mortar adhesion, flexural strength, water resistance, plasticity, wear resistance and construction, in the flexible anti-crack mortar more has a strong flexibility.

Hydroxypropyl methyl cellulose is generally used in degreasing coating/wall putty with a viscosity of 100,000, while cement mortar has relatively high requirements for viscosity, and it is better to choose a viscosity of 150,000. The most important role of hydroxypropyl methyl cellulose is water retention, followed by thickening.

In ready-mixed mortar, the addition of cellulose ether is very low, but it can significantly improve the performance of wet mortar, which is a major additive affecting the construction performance of mortar. the important role of HPMC in mortar is mainly in three aspects, one is the excellent water retention capacity, the second is the effect on mortar consistency, and the third is the interaction with cement.

In the mortar why people on water retention requirements are so high, water retention good mortar has what outstanding advantages, let me introduce to you, the importance of mortar water retention.

High water retention can make cement fully hydrated, significantly increase bond strength, and can appropriately improve tensile strength and shear strength, greatly improve the construction effect, improve work efficiency.

With the development of modern building constructions, cellulose ether is being widely used in cement products. Cellulose ether is formed by the etherification of cellulose or one or more etherifying agents and dry grinding. SLEO cellulose ether products include HPMC,and HEMC, multi-purpose additives widely used in cement products. Factors related to the properties of cellulose ethers are becoming a hot topic in the industry.