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 mineralsurfaces. Mineral substrates treated with SILRES® BS 4004 are especially characterized by an excellent beading effect. Moreover It can be used for the mass hydrophobation of non-load bearing concrete products.Properties :• good depth of penetration• rapid development of water repellency• highly durable and effective beading effect• tack-free drying• provides good adhesion for paints• water-based and environmentally compatible• stable in storage, even when dilutedApplications :• Impregnation of New and Existing Buildings• Construction Materials• Hydrophobic Impregnation• Silicone Primers• Primer for Paints