High Viscosity Cellulose Ether Hydroxypropyl Methyl Cellulose HPMC China Hydroxypropyl Methyl Cellulose Construction Use HPMC

With the development of dry mix mortar, the cellulose ether has become an important admixture for cement mortar. Cellulose ethers are used as thickeners and water retention additives in dry mix mortar applications.

Types of Dry Powder (pre-mixed) Wall Putty Mortar:

Gypsum based and gypsum-lime based machine spray plasters are mixed and applied in continuously working plastering machines. They are used for a highly efficient coating of walls and ceilings and applied in one layer (ca. 10 mm thick).

SLEOCHEM cellulose ethers are essential components of successful cement-based render formulations. render must retain enough water for proper setting of the cement and to achieve high mechanical strength. Celotech cellulose ethers improve water retention of cement-based render and offer these additional advantages:

Cellulose ether is a common additive in dry mortar, which plays a very important role.

Generally speaking, the product descriptions provided by cellulose ether manufacturers will contain the following indicators: appearance, degree of substitution of viscosity groups, fineness, effective substance content (purity), moisture content, recommended areas and dosage, etc.

One of the biggest differences between dry mixed mortar and traditional mortar is to modify dry powder mortar with a small amount of chemical additives. Adding an additive to dry powder mortar is called primary modification, and adding two or more additives is called secondary modification.

Generally speaking, the higher its viscosity, the better the water retention effect of the gypsum mortar. However, the higher the viscosity, the higher the molecular weight of the cellulose ether and the corresponding decrease in its solubility, which has a negative effect on the strength and construction properties of the mortar. The higher the viscosity, the more obvious the thickening effect on the mortar, but it is not a positive relationship.