What is the use of HPMC in tile adhesive?

Author: Liang

May. 06, 2024

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Why is HPMC an important ingredient in cement-based tile ...

HPMC, or hydroxypropyl methylcellulose, is an important ingredient in cement-based tile adhesives because of its unique properties that enhance the performance of cementitious materials. It acts as a thickener, controlling the processability of the adhesive while improving its adhesion and water retention properties. As the construction industry continues to evolve, HPMC has become even more important in meeting the high standards and requirements of modern construction practices.

Another major benefit of using HPMC in cement-based tile adhesives is its effect on the adhesive bond strength. HPMC is an excellent film former, meaning it forms a protective layer around the cement particles in the binder. This protective layer helps prevent the bond from drying out too quickly, thereby increasing the bond's strength and durability. In this way, HPMC helps extend the working time of the adhesive and allows enough time for the tiles to be placed correctly. The enhanced bond strength provided by HPMC also reduces tile slippage, thereby improving the overall quality of the tile installation.

HPMC is also a popular emulsifier that enhances the water retention properties of adhesives. HPMC is characterized by its ability to absorb and retain water, making it an ideal ingredient for cement-based tile adhesives. The increased water-holding capacity gives the adhesive greater adhesion, improved wetting, and increased bond thickness to the substrate. In addition, HPMC can modify the setting and hardening characteristics of the adhesive so that it can withstand the shrinkage stresses generated during drying and curing. This helps improve its waterproofing capabilities, protecting the tiles and substrate from water damage and extending the life of the flooring system.

Another important advantage of using HPMC in cement-based tile adhesives is its compatibility with other ingredients. HPMC is a versatile ingredient that works well with other performance-enhancing additives such as latex polymers and superplasticizers to improve the quality and performance of adhesives in different environments and conditions. The use of HPMC in tile adhesives therefore allows the adhesive’s performance to be tailored to meet the specific needs of different projects, ensuring a better end product in any environment or application.

HPMC is an important ingredient in cement-based tile adhesives because it improves the bond strength, water retention and workability of the adhesive. It benefits any construction project by providing efficient installation, high performance and excellent protection of floors from water damage and wear. The benefits of HPMC can be realized by combining it with other additives that tailor the properties of the adhesive to meet specific project requirements. Therefore, the use of HPMC in cement-based tile adhesives is crucial and a wise choice for any construction project that requires high quality and long-lasting results.

Rio Lee International marketing devision Anxin Cellulose Co.,Ltd

The Key Role of HPMC in Tile Adhesives

Tile adhesives are compounds used to stick tiles to walls or floors firmly. Fortunately, the application of our MaiSi® HPMC in tile adhesive can improve all the features of tile adhesive to satisfy all demands in construction. Therefore, tile adhesive is expected to fix the tiles not just for several years but for decades without failure. It must be easy to use and should not have any gaps between the tile and the substrate.

Hydroxypropyl methyl cellulose(HPMC) is a water-soluble non-ionic cellulose ether polymer. The chemical properties can vary according to the degree of substitution and modification.With good performance of thickening, dispersion, emulsification, suspension, adsorption, surface activity, and water retention, MaiSi® HPMC products are widely used in tile adhesives.

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So, Why use HPMC in tile adhesives?

The primary function of HPMC in tile adhesives is water-retaining and thickening. The purpose is to increase the final solidification strength of the tile adhesive, extend the open time, and improve its workability. Usually, when we evaluate the performance of tile adhesive, in addition to its workability and anti-sliding ability, we also pay attention to its open time. For example, in a wet mortar, the water in the mortar will evaporate, and then cellulose ether will be gathered on the surface. A film will form on the mortar surface within 5 minutes, which will reduce the subsequent evaporation rate. Therefore, hydroxypropyl methyl cellulose (HPMC) can extend the opening hours.

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