BOTAI HEMC/MHEC is synthesized by etherifying alkali cellulose with ethylene oxide and methyl chloride. Known for ultra-high water retention, rapid dissolution, and minimal air entrainment, it optimizes performance in high-end construction applications (e.g., self-leveling compounds, gypsum plasters) and water-based coatings. Its low-bubble formula improves final strength and surface finish.