High Purity HPMC With Low Ash Content 100000 Cps Viscosity HPMC Used in Gypsum Based Skim

High Purity HPMC With Low Ash Content 100000 Cps Viscosity HPMC Used in Gypsum Based Skim

Hydroxy propyl methyl cellulose hpmc is an additive for building chemical materials.high purity hpmc low ash content 100000 cps viscosity hpmc used in gypsum based skim coat hpmc It is a water-based product that forms gel-textured colloids when dissolved in water. Its properties include thickening, dispersing, emulsifying and stabilizing. It is used in many applications, including tile adhesives and gypsum products. It also serves as an admixture for wall putty powder and self-leveling compounds. It is also effective in reducing cracking, shrinkage and surface roughness of mortars. In addition, it enhances the adhesion of gypsum board to substrate.

During the formulation process, it is important to select the proper HPMC for the application. In general, a higher viscosity grade is preferred for maximizing nail pull index and flexural strength. It is also preferable to choose a cellulose ether with a low degree of substitution (DS) and a low molecular weight.

The hydration of HPMC is dependent on temperature and pH. It is important to note that as the temperature of the aqueous solution decreases, the viscosity will increase, and vice versa. Therefore, a high-viscosity grade of HPMC is preferred for colder climates and conditions, while a lower-viscosity HPMC is preferable for warmer temperatures.

In a gypsum based skim, the higher viscosity of HPMC can help reduce the amount of water used to mix the slurry. This can save time and labor costs during construction. In addition, it can help improve the stability of the slurry and prevent shrinkage or expansion due to changes in temperature.

However, the high-viscosity HPMC can also affect the quality of the gypsum slurry. For example, it can slow down the flow of slurry and reduce its workability. It is also important to select a suitable gypsum slurry recipe in order to achieve the best results.

For construction application, hpmc with low ash content is a good choice. It is safe for use in walls and floors, and it can help strengthen the bond between gypsum board and the substrate. It can also prevent cracking and shrinkage of slurry, and it can improve the durability of the finished product.

One-stop Shopping Service

Yicheng offers one-stop shopping services to customers who need various dry mix products for construction applications, such as re-dispersible powder, hydrophobic powder and HPMC. We can also customize the formula for you according to your specifications.

Our HPMC is packed in three layer paper bag with inner polyethylene bag reinforced, net weight 25kg per bag. The bag is kept in cool dry warehouse, away from sunlight, fire and rain. The standard purity construction grade HPMC is not enough to reach the function required in the specific application, so it needs to be modified. Modification includes adjusting the gelation temperature, ash content and adding other additives to increase its workability, sag resistance and other functions. This kind of modified HPMC is normally at a slightly higher price than the pure construction grade one.

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