METHOCEL™ Cellulose Ethers can help you create better ...

 
Cement Mortar

In cement mortars, it is critical to ensure good water retention for adequate hydration, which leads to better strength development. Often, the brick and wall substrates that mortar is applied to are highly absorptive to moisture, resulting in water loss from the mortar. Furthermore, the higher sand content of mortar facilitates easier moisture loss to the brick and wall. METHOCEL' is highly retentive towards water and will mitigate mortar water loss. Thus, adding METHOCEL' to cement mortars can improve strength and durability.
 
Typically, the bond strength of sand, lime, and cement mortar is very low. Adding METHOCEL' can greatly increase bond strength such that the bending tensile and shear strength of mortars can be greatly improved, even when eccentric or horizontal loads are high.

The amount of METHOCEL' to add should be determined experimentally. METHOCEL' can serve as an air-entraining agent, so too much will cause too many bubbles in the mortar, reducing its compressive strength.

Ceramic Tile Adhesive

There can be significant differences in the porosity of ceramic tiles, where some are very porous and absorb more water. This can compromise the bonding properties of ceramic tile adhesives, which are greatly impacted by water loss to either the base layer or the ceramic tiles it is bonding. Therefore, water-retaining agents like METHOCEL' are especially important to mitigate water loss, allowing high bond strength to develop between base layers and ceramic tiles.

This allows for a process improvement where ceramic tiles do not need to be soaked in or sprayed with water prior to applying the tile adhesive. Furthermore, METHOCEL' creates slurries that are fine and smooth in appearance, making a more uniform and convenient construction product.

Plaster

Workability, plasticity, and initial viscosity are all important properties of cement- or gypsum-based plaster. Even a very small amount of METHOCEL' will significantly improve these properties since water is critical for developing strength, durability, and appearance in cement- and gypsum-based plasters. Since METHOCEL' is extremely water retentive, it slows evaporation and water loss from absorption, which provides more hydration to the plaster and allows better mechanical strength to develop. This also contributes to better plaster mix homogeneity and reduces the risk of cracking.
 
METHOCEL' also provides lubricity to dispersed particles in plasters, which increases workability and enhances mixing characteristics. This leads to smoother, better-looking finishes. It also improves consistency and rheology in mixes, making spreading easier. METHOCEL' also increases adhesion to walls and surfaces, preventing sagging in gypsum- and cement-based plasters.

Gypsum-based products

Gypsum products are becoming increasingly popular due to benefits such as light weight, thermal insulation, fire resistance, and the ability to adjust indoor humidity. Finish materials based on gypsum, such as render, have also gradually replaced other materials. To achieve full hydration of gypsum, ensure adequate adhesion, and prevent cracking, these materials must be prepared with an appropriate amount of METHOCEL' as a water-retaining and binding agent. Typically, a 0.2 wt% of METHOCEL' is added to significantly improve construction performance, prevent cracking, and make finished surfaces flat and smooth.

Other Building Materials

Concrete: METHOCEL' can be used as a drag-reducing agent in pipelines and a water-retaining agent in concrete. It can also significantly improve initial setting strength.

Building adhesives: METHOCEL' serves as the primary adhesive in dry-mix wallpaper pastes to provide the required wet tack to adhere the paper to the wall. Before setting, the adhesive has good slip properties, allowing for easier readjustment. The METHOCEL' grades used in building and construction applications are soluble in cold water, making formulating easier. They also feature thermal gelation properties, where gelation can be achieved under specific heat conditions. This gelation is useful in plywood laminating adhesives to prevent the adhesive from seeping too deeply into the wood.

Binders and rubber powder used in buildings: Using METHOCEL' as an auxiliary bonding material improves not only the bonding properties but also the mildew resistance of the binder and RDP (redispersible polymer) powder used in buildings.

Coatings industry: METHOCEL' has a wide range of applications in the coatings industry. It can be used as a film former, thickener, emulsifier, and stabilizer in latex paints and water-based coatings. It creates films with good abrasion resistance, leveling, and adhesion while improving surface tension, pH stability, and compatibility with metallic pigments. METHOCEL' provides coating formulations with good storage stability and blends wellwith organic solvents. Since METHOCEL' functions as a good dispersing media for pigments, it has been widely used in colored coatings, significantly improving their performance and decorative effects. For more information on this topic, check out
 
Summary
 
METHOCEL' HPMC plays an important role in bonding, water retention, and improving the performance of construction materials. It is used in a wide range of domestic building materials with significant economic benefits and will likely be used in many more applications within the building and construction space.

Recommended METHOCEL' Grades
 

Grade

If you want to learn more, please visit our website KDOCEL.

Description

Typical Viscosity
(2% in water at 20°C, mPa·s)

Applications

METHOCEL' 228S
White cellulose ether powder
  5,000 Gypsum and cement plasters, masonry mortars, grouts, and tile and block adhesives METHOCEL' 254
White cellulose ether powder
  32,000 Cement plasters, masonry mortars, grouts, and cement-based tile and block adhesives METHOCEL' J12MS
White cellulose ether powder
  10,000'16,500 Ready-mix tile adhesives and renders METHOCEL' J75MS
White cellulose ether powder
  60,000'90,000 Ready-mix tile adhesives and renders METHOCEL' 240S
White cellulose ether powder
  30,000'50,000 Tape-joint compounds   Achieve the best results in your building materials with METHOCEL' cellulose ethers.
 
Contact Us For A Sample Or Quote

METHOCEL' is an economical, high-performing polysaccharide thickener. It is a hydroxypropyl methylcellulose (HPMC) polymer derived from wood pulp that exhibits excellent water retention, adhesion promotion, and binding properties. These properties make it the ideal chemical for improving the performance, visual quality, and consistency of building products.In cement mortars, it is critical to ensure good water retention for adequate hydration, which leads to better strength development. Often, the brick and wall substrates that mortar is applied to are highly absorptive to moisture, resulting in water loss from the mortar. Furthermore, the higher sand content of mortar facilitates easier moisture loss to the brick and wall. METHOCEL' is highly retentive towards water and will mitigate mortar water loss. Thus, adding METHOCEL' to cement mortars can improve strength and durability.Typically, the bond strength of sand, lime, and cement mortar is very low. Adding METHOCEL' can greatly increase bond strength such that the bending tensile and shear strength of mortars can be greatly improved, even when eccentric or horizontal loads are high.The amount of METHOCEL' to add should be determined experimentally. METHOCEL' can serve as an air-entraining agent, so too much will cause too many bubbles in the mortar, reducing its compressive strength.There can be significant differences in the porosity of ceramic tiles, where some are very porous and absorb more water. This can compromise the bonding properties of ceramic tile adhesives, which are greatly impacted by water loss to either the base layer or the ceramic tiles it is bonding. Therefore, water-retaining agents like METHOCEL' are especially important to mitigate water loss, allowing high bond strength to develop between base layers and ceramic tiles.This allows for a process improvement where ceramic tiles do not need to be soaked in or sprayed with water prior to applying the tile adhesive. Furthermore, METHOCEL' creates slurries that are fine and smooth in appearance, making a more uniform and convenient construction product.Workability, plasticity, and initial viscosity are all important properties of cement- or gypsum-based plaster. Even a very small amount of METHOCEL' will significantly improve these properties since water is critical for developing strength, durability, and appearance in cement- and gypsum-based plasters. Since METHOCEL' is extremely water retentive, it slows evaporation and water loss from absorption, which provides more hydration to the plaster and allows better mechanical strength to develop. This also contributes to better plaster mix homogeneity and reduces the risk of cracking.METHOCEL' also provides lubricity to dispersed particles in plasters, which increases workability and enhances mixing characteristics. This leads to smoother, better-looking finishes. It also improves consistency and rheology in mixes, making spreading easier. METHOCEL' also increases adhesion to walls and surfaces, preventing sagging in gypsum- and cement-based plasters.Gypsum products are becoming increasingly popular due to benefits such as light weight, thermal insulation, fire resistance, and the ability to adjust indoor humidity. Finish materials based on gypsum, such as render, have also gradually replaced other materials. To achieve full hydration of gypsum, ensure adequate adhesion, and prevent cracking, these materials must be prepared with an appropriate amount of METHOCEL' as a water-retaining and binding agent. Typically, a 0.2 wt% of METHOCEL' is added to significantly improve construction performance, prevent cracking, and make finished surfaces flat and smooth.METHOCEL' can be used as a drag-reducing agent in pipelines and a water-retaining agent in concrete. It can also significantly improve initial setting strength.METHOCEL' serves as the primary adhesive in dry-mix wallpaper pastes to provide the required wet tack to adhere the paper to the wall. Before setting, the adhesive has good slip properties, allowing for easier readjustment. The METHOCEL' grades used in building and construction applications are soluble in cold water, making formulating easier. They also feature thermal gelation properties, where gelation can be achieved under specific heat conditions. This gelation is useful in plywood laminating adhesives to prevent the adhesive from seeping too deeply into the wood.Using METHOCEL' as an auxiliary bonding material improves not only the bonding properties but also the mildew resistance of the binder and RDP (redispersible polymer) powder used in buildings.METHOCEL' has a wide range of applications in the coatings industry. It can be used as a film former, thickener, emulsifier, and stabilizer in latex paints and water-based coatings. It creates films with good abrasion resistance, leveling, and adhesion while improving surface tension, pH stability, and compatibility with metallic pigments. METHOCEL' provides coating formulations with good storage stability and blends wellwith organic solvents. Since METHOCEL' functions as a good dispersing media for pigments, it has been widely used in colored coatings, significantly improving their performance and decorative effects. For more information on this topic, check out this article METHOCEL' HPMC plays an important role in bonding, water retention, and improving the performance of construction materials. It is used in a wide range of domestic building materials with significant economic benefits and will likely be used in many more applications within the building and construction space.

1. Cement mortar thickener

Cellulose ethers are widely used as thickeners for cement mortar in construction. Adding an appropriate amount of cellulose ether to cement mortar can improve the adhesion and construction performance of the mortar, while preventing the mortar from cracking and falling powder. It can retain water by absorbing moisture, so that the mortar solidifies evenly during the hardening process, reducing the cracking problem caused by drying shrinkage. In addition, cellulose ethers can increase the plasticity of the mortar, improve its construction convenience and operability.

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If you are looking for more details, kindly visit cellulose ethers for building materials manufacturer.

2. Water retaining agent

In a dry or high temperature environment, the moisture of cement-based materials evaporates quickly, which can easily lead to excessive moisture loss and affect the normal hydration of cement. Cellulose ether has good water retention properties. It can maintain sufficient moisture in cement mortar, gypsum-based materials, prolong the hydration time, ensure that cement, gypsum and other cementitious materials are fully hydrated, and then improve their strength and adhesion. This water retention is particularly suitable for dry and high-wind speed construction environments, reducing cracks and extending the service life of materials.

3. Improved construction performance

The thickening effect of cellulose ether also helps to improve the construction performance of mortar and putty. Materials with cellulose ether can be spread more smoothly, reduce sagging, and facilitate operation. Especially when constructing on vertical surfaces, tops and slopes, the material will not slide down easily, which is conducive to achieving a thicker coating layer, reducing construction difficulty and improving project quality. At the same time, the lubricating effect of cellulose ether makes the material easier to apply and reduce the resistance of manual operation.

4. Crack resistance

Cellulose ether can reduce shrinkage cracks caused by water loss during the curing process. Its water retention and thickening effects help the material harden evenly, avoid internal stress caused by local water shortage, and effectively prevent cracks. In addition, cellulose ether can enhance the tensile strength and compressive strength of materials, thereby improving crack resistance, and is suitable for construction with high requirements such as interior and exterior wall plastering.

For more information, please visit redispersible polymer powder rdp.