Protectosil® 166 is a colorless, solvent-free liquid based on an reactive, oligomeric alkyl siloxane. The diluted solution of Protectosil® 166 is intended for the water-repellent impregnation of absorbent mineral facade construction materials.
Scope of Application
Areas of application:
For waterproofing absorbent mineral facade construction materials such as:
autoclaved aerated concrete
cement fiber board
We recommend using a 10% solution of the active ingredient in an aliphatic hydrocarbon solvent (such as e.g. Shellsol D 40). The amount to be applied depends to a large extent on how absorbent the substrate is. Empirical values are, for example,
approx. 0.5 - 1.0 l/m2 for mineral plaster facades,
approx. 0.4 - 0.7 l/m2 for sand-lime brickwork,
approx. 0.4 - 2.0 l/m2 for brickwork,
approx. 0.5 - 2.0 l/m2 for autoclaved aerated concrete
and approx. 0.1 - 0.3 l/m2 for cement fiber board.
The exact amount to be applied must be determined by a trial application.
water-vapor-permeable, colorless impregnation
not film-forming effective
on hairline cracks up to 0.3 mm
good reduction of the water absorption
high alkali resistance
suitable as a primer for facade topcoats