The advanges of HPMC & MHEC in dry mix mortar products
November 22nd 2024
Tile adhesives are compounds used to stick tiles to walls or floors firmly. Fortunately, the application of our 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, HPMC products are widely used in tile adhesives.
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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