HPMC: The Right Choice for High Quality Dry Mix Mortar

HPMC is a key ingredient in the manufacture of dry mix mortars. It greatly affects the smoothness and homogeneity of the mortar and simplifies the construction process.

What is HPMC?

HPMC (Hydroxypropyl Methyl Cellulose), also known as hydroxypropyl methyl cellulose, is a cellulose ether. It is usually a white powder or loose fibrous material that is odorless, tasteless, non-toxic, and does not react with heavy metals. HPMC is widely used in a variety of applications across a wide range of industries, acting as a binder, thickener, and water-holding agent in construction, and as a film-forming and thickening agent in the paint industry.

Characteristics of HPMC

Water Retention

Water retention is an important quality indicator for HPMC, especially in thin applications such as cement mortars and gypsum-based products.HPMC has a high water retention capacity, absorbing and retaining water in the mortar mixture. It effectively prevents mortar from losing strength and cracking due to rapid drying and insufficient hydration.

Workability

HPMC not only improves the cohesion of the mortar, allowing it to work smoothly on a wide range of substrates, but also enhances the adhesion properties of the mortar, ensuring better bonding to the substrate.

HPMC contributes to the excellent flow of the mortar and promotes proper aerating. This results in lower mortar density, better workability and increased mortar yield. In addition, the presence of air in the mortar enhances the thermal insulation of the final product.

Increasing Bonding Strength

One of the main advantages of adding HPMC to mortar is its ability to increase bonding strength. The compound forms a thin film around the particles, which improves the interaction between the mortar and the substrate. This enhanced adhesion ensures a strong bond, reducing the risk of delamination or failure.

Typical Applications of HPMC in Dry Mix Mortar.

HPMC can be used in a wide range of construction materials and the following are some of the applications of HPMC in construction:

Plastering Mortars

HPMC improves the water retention of the mortar and ensures complete hydration of the cement. This enhances bond strength as well as tensile and shear strength, which significantly improves workability and efficiency.

Wall Putty

HPMC has the key functions of water retention, bonding and lubrication. It prevents cracking and dehydration of wall putty due to excessive water loss, while enhancing the adhesion of the putty. In addition, it reduces sagging during construction and ensures a smoother overall construction process.

Gypsum Plaster

HPMC plays an important role in gypsum-based products by enhancing water retention and lubricity. It also has a retarding effect, prevents hollow core cracking and ensures that the initial strength achieved during the construction process is maintained, thus prolonging the working time.

EIFS (Exterior Insulation and Finish Systems)

HPMC enhances bonding and strength, promotes smoother mortar coatings and improves overall efficiency in EIFS. It also has a strong anti-sagging effect and increased water retention, extending the working time of the mortar while minimizing shrinkage and cracking.

Jinan Jintedifu Chemical Co., Ltd. is a high quality HPMC manufacturer in China. We specialize in providing HPMC (Hydroxypropyl Methyl cellulose) in different specifications for dry mortar and a wide range of other applications.If you want to know more about HPMC for construction, please contact us. We will provide professional answers.

Edit author:Vicky Jiang

E-Mail:vicky.jiang@jtdf-rdp.com

Whatsapp:(+86)15269972791