In modern construction materials, HPMC viscosity in mortar plays a crucial role in determining the workability, stability, and durability of cement-based systems. Hydroxypropyl Methylcellulose (HPMC) is widely used as a performance modifier in dry-mix mortars such as tile adhesive, wall putty, self-leveling compounds, plaster mortar, and EIFS systems. By adjusting HPMC viscosity, manufacturers can control water retention, open time, slip resistance, and [...]