DRY POWDER COMPOSITION, PUTTY COMPOSITION OBTAINABLE FROM SUCH COMPOSITION, AND SUBSTRATE COATED WITH SUCH PUTTY COMPOSITION

摘要

The invention relates to a dry powder composition comprising 4% to 20% by weight of cement, wherein the cement is one selected from the group consisting of Portland cement, aluminous cement, and sulfate aluminate cement; 4% to 12% by weight of gypsum; 1.5% to 4.0% by weight of re-dispersible binder polymer particles; 0.02% to 0.04% by weight of a retarder; 0.02% to 0.05% by weight of a viscosity modifying agent selected from the group consisting of xanthan gum, dextran, welan gum, gellan gum, diutan gum, pullanan, and mixtures of two or more thereof; 0.15 to 0.35% by weight of a cellulose ether; and 65% to 85% by weight of a filler having particles with a particle size distribution with a D50 value in the range of from 12 to 300 µm, wherein all percentages by weight are based on the total weight of the composition.The invention further relates to a putty composition obtainable by adding water to such dry powder composition and to a substrate coated with a putty layer deposited from such putty composition.