Abstract: The building compositions comprise hydrophobicizing powders which contain A) silica as support material and B) a hydrophobicizing component which is liquid at 10° C. and comprises B1) one or more organosilicon compound(s) and, if desired, B2) solvent and/or B3) water and emulsifier, with the proviso that the powders contain from 5 to 80% by weight of organosilicon compound, based on the total weight of the powder.

Abstract: Aqueous, stiff cream comprising;(A) a silicone compound selected from the group consisting of(A1) a C.sub.1 -C.sub.20 -alkyl-C.sub.2 -C.sub.6 -alkoxysilane and(A2) an alkoxy-containing organopolysiloxane, optionally(B) an organopolysiloxane which, in addition to other organosiloxane units, contains siloxane units which contain radicals bonded via SiC and containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least 0.01, and(C) an emulsifier.

Abstract: The present invention relates to organopolysiloxane-containing compositions which are self-dispersing in water, their preparation and their use. The compositions of the present invention are suitable for all uses where organosilicon compounds, especially in water-diluted form, can be employed. Such uses include uses as water repellant agents on building materials.

Abstract: Compositions for the impregnation of mineral building materials, which comprise(A) salts of organic or inorganic acids and an organopolysiloxane siloxane or mixture of organopolysiloxanes containing SiC-bonded radicals containing basic nitrogen, in amounts of at least 0.5% by weight, based on the weight of the organopolysiloxane, optionally(B) an organosilicon compound containing basic nitrogen, in amounts of 0 to 0.5% by weight, based on the weight of the organosilicon compound, and(C) a fluorine-containing organic or organosilicon compound.