KimaCell® HPMC MP20M is cellulose ether applied for cement-based plaster. HPMC MP20M is a hydroypropyl methyl cellulose, HPMC is mainly used as retarder and water retention agent in cement proportioning. In cement plaster mortar, it can improve viscosity and shrinkage rate, strengthen cohesive force, control cement setting time, and improve initial strength and static bending strength. Because it has the function of retaining water, it can reduce the loss of water on the concrete surface, avoid cracks at the edge, and improve adhesion and construction performance. Especially in construction, the setting time can be extended and adjusted. With the increase of HPMC content, the setting time of mortar will be extended successively; improve the machinability and pumpability, suitable for mechanized construction; improve construction efficiency and benefit the building surface Protects against weathering of water-soluble salts.

Where to buy Cas 9004-65-3

Specification of HPMC MP20M

Chemical nameHydroxypropyl Methyl Cellulose
SynonymCellulose ether; Hypromellose; Cellulose, 2-hydroxypropyl methyl ether; Hydroxypropyl methyl cellulose; HPMC; MHPC
CAS number9004-65-3
EC Number618-389-6
Product GradeHPMC MP20M
SolubilityWater Soluble Cellulose Ether
Physical formWhite to off-white cellulose powder
Viscosity Brookfield 2% solution10000-20000 mPa.s
Viscosity NDJ 2% solution16000-24000 mPa.S
Ash contentMax5.0%
Mesh size99% pass 100 mesh
HS code3912.39

Application of HPMC MP20M

KimaCell® HPMC MP20M can be used in cement based plaster. It has the bellow property on bellow point:

  • After the HPMC in the mortar is dissolved in water, the effective and uniform distribution of the cementitious material in the system is ensured due to the surface activity, and HPMC, as a protective colloid, "wraps" the solid particles and forms a layer on its outer surface. A layer of lubricating film makes the mortar system more stable, and also improves the fluidity of the mortar during the mixing process and the smoothness of construction.

  • Due to its own molecular structure, the HPMC solution makes the water in the mortar not easy to lose, and gradually releases it over a long period of time, endowing the mortar with good water retention and construction. It can prevent the water from flowing too quickly from the mortar to the base, so that the retained water stays on the surface of the fresh material, which can promote the hydration of the cement and improve the final strength.

  • HPMC is stable to acid and alkali, and its aqueous solution is very stable in the range of pH=2~12. Caustic soda and lime water have little effect on its performance, but alkali can speed up its dissolution and slightly increase its viscosity.

  • The construction performance of the mortar added with HPMC has been significantly improved. The mortar seems to be "oily", which can make the wall joints full, smooth the surface, make the tile or brick and the base layer bond firmly, and can prolong the operation time, suitable for large Area construction.

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