Wacker Chemie AG


Silane - Siloxanes

SILRES® BS 4004 is a water-thinnable, solventless emulsion, based on a
mixture of silane and siloxane.
Dilute solutions of SILRES® BS 4004 serve as highquality, general-purpose
water repellents for hydrophobic impregnating and priming mineral surfaces.

Mineral substrates treated with SILRES® BS 4004 are especially
characterized by an excellent beading effect.
Moreover SILRES® BS 4004 can be used for the mass hydrophobation of
non-load bearing concrete products.
Typical general characteristics
Property Inspection Method Value
The figures are intended as a guide and should not be used in preparing specifications.
Density 0.95 g/cm³
Viscosity, dynamic at 25 °C ca. 12 mPa.s
Active substance 50 wt. %

All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product’s fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence.

This disclaimer of warranty and liability also applies – particularly in foreign countries – with respect to third parties’ rights.


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