The invention relates to a multi-component system for producing a foamed silicone composition, comprising a) a polyorganosiloxane, b) a polyhydrogenorganosiloxane, c) a photoactivatable catalyst, d) a blowing agent, e) optionally one, two, three, or more fillers, f) optionally additives, preferably additives for the cell control of foams, wherein the polyhydrogenorganosiloxane b) is associated with a first component I) and the photoactivatable catalyst c) is associated with a second component II), which are spatially separated from each other. The invention further relates to a reaction mixture for producing a foamed silicone composition, to the use of a multi-component system according to the invention or of a reaction mixture according to the invention to produce a foamed silicone composition, to a method for producing a seal foamed in-situ on a component ("FIPFG" (formed-in-place foam gasket)), and to products, in particular electronic components, housings, lamps, barrels, or filter housings, comprising a
