Silsan® impregnating powders: The ideal solution for rendering dry-mixes water repellent. These are silicone water repellents on a powder carrier, and are added to the dry mixes during their production.
Types recommended:
Silsan® P22: Suitable for cement and lime cement based dry-mix plasters; polymer based dry-mix plasters. White, fine powder with good water beading effect.
Silsan® ZEK: Suitable for cement and lime cement based dry-mix plasters; polymer based dry-mix plasters. White, fine powder with very strong water beading effect.
Silsan® P60: Suitable for cement and lime cement based dry-mix plasters; especially for gypsum based dry-mix plasters. Slightly yellowish, fine powder with marginal water beading effect.
More types and information: Graf Impregnating Powder