This modified hydroxyethyl methyl cellulose is designed for cement spray plaster applications, such as one- or two-coat cement-based plaster, cement-based lightweight plaster, and cement-based reinforcing and bonding mortars for exterior insulation and finishing systems (EIFS). It imparts well-balanced properties including high standing strength, effective stabilization of air voids and good impact resistance. WALOCEL™ MKW 20000 PP 20 also adds good workability and enhances water retention. The selected particle size distribution offers quick dissolution and viscosity development. It is compatible with all conventional mineral binders and additives used in cement spray plaster formulations. Dow’s WALOCEL™ cellulose ether products are manufactured using cellulose from wood or cotton linter, resulting in an inherently bio-based additive with approximately over 78% bio-based carbon content.