The invention relates to a composition containing a) 30 to 99.799989 wt % of at least one linear or branched polyorganosiloxane, containing at least two alkenyl or alkinyl groups, as component A; b) 0.1 to 30 wt % of at least one linear or branched polyorganosiloxane containing at least 3 Si—H groups, as component B; c) 0.000001 to 1 wt % of a hydrosilylation catalyst chosen from the group comprising the platinum-1, 3-divinyl-1,1, 3, 3-tetramethyl disiloxane complex (Karstedt complex), the platinum-1,3-diallyl-1,1,3,3-tetramethyldisiloxane complex, the platinum-1,3-divinyl-1,3-dimethyl-1,3-diphenyldisiloxane complex, the platinum-1,1,3,3-tetraphenyl-disiloxane complex, and the platinum-1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane complex, as component C; d) 0.00001 to 5 wt % of tris(2,4-di-tert.-butylphenyl) phosphite, as component D; e) 0 to 69.899989 wt % of at least one possibly coated filler as component E; f) 0 to 69.899989 wt % of one or more linear or branched polyorganosiloxanes, containing two terminal Si—H groups or one terminal Si—H group and one terminal alkenyl group, as component F; g) 0 to 69.799989 wt % of one or more further linear or branched polyorganosiloxanes as component G; h) 0 to 10 wt % of one or more additives as component H; wherein the sum of the components A to H yields 100 wt %.