Construction industry

In the construction industry, cellulose ethers are essential functional additives in building materials such as tile adhesives, plasters, renders, and self-leveling compounds. Sodium Carboxymethyl Cellulose (CMC-Na/CMC) is primarily used as a thickening and water-retention agent in gypsum-based products and putty powders, though its application is somewhat limited in highly alkaline cement systems due to instability. Methyl Cellulose (MC) enhances water retention and workability, preventing premature drying in thin-layer mortars. Hydroxyethyl Cellulose (HEC) serves as an efficient thickener and protective colloid, providing excellent sag resistance and smooth consistency in emulsion paints and textured coatings. Hydroxyethyl Methyl Cellulose (HEMC) combines the properties of methyl and hydroxyethyl groups, offering superior water retention and improved adhesion in ceramic tile adhesives and exterior insulation finishing systems (EIFS). Finally, Hydroxypropyl Methyl Cellulose (HPMC) is the most widely used ether due to its thermal gelation and high water retention; it extends open time, enhances slip resistance, and improves workability in cement and gypsum-based mortars. Collectively, these cellulose derivatives significantly improve the quality, durability, and ease of application of modern construction materials.