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The Redispersible Polymer Powder RDP is a special polymer powder made after spray drying.

Hydroxypropyl methyl cellulose HPMC is a nonionic cellulose ether made by a series of reactions after refined cotton is alkalized with propylene oxide and methane chloride as etherifying agent. Hydroxypropyl methyl cellulose for non-ionic cellulose ether,

High water retention HPMC 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.

The use of cellulose ether HPMC in external thermal insulation mortar: cellulose ether plays a role of bonding and increasing strength in this material. The sand will be easier to coat, improve work efficiency, and have the effect of anti-sagging. Higher water retention performance can extend the working time of the mortar, improve shrinkage resistance and crack resistance, improve surface quality, and increase bonding strength.

Hydroxypropyl methyl cellulose manufacturers analyze and test hydroxypropyl methyl cellulose

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.

Water-retaining agent: Self-leveling materials are constructed on the ground base, and the construction thickness is relatively thin, and the water is easily absorbed by the ground base, resulting in insufficient hydration of the material, cracks on the surface, and reduced strength.

Dry mortar generally uses Portland cement as the cementing material, and the amount of cementing material generally accounts for 20% to 40% of the dry powder mortar; most of the fine aggregate is quartz sand, and the amount is large, and it generally needs to be dried and screened.