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Putty powder for exterior wall Item Putty Powder for Exterior Wall Portland Cement 20~50 Quartz Sand 32.5mesh 20~40 Calcium Carbonate1500-200mesh 20~50 Starch Ether 0.1~0.5 Montmorillonite 0.1~0.6 Defoaming Agent 0.1~0.3 Additive