This invention relates to a hydrophobic coating material comprising a silane-modified polyorganosiloxane. The invention also relates to a method of making such a coating material, the use of such a coating material, a method for coating a substrate with such a coating material, and a coated substrate obtainable by such a method. In a preferred embodiment, the silane-modified polyorganosiloxane prepared by reacting hydride-containing polyorganosiloxane with vinylsilane; or reacting vinyl-containing polyorganosilane with trimethoxysilane, triethoxysilane or trichlorosilane through hydrosilylation reaction is provided.