Use of self-cross-linked siloxanes for defoaming liquid hydrocarbons

The present invention relates to the use of compositions comprising components A, a polymer obtainable by the hydrosilylation of an SiH functional and vinyl-functions having siloxanes with another unsaturated compound, and D, metal atoms or ions of the platinum group as defoamers of hydrocarbons and for suppression or reduction of the formation of foam or to Schaumdestabilisierung.