Curable silicone compositions comprising resins

A composition comprising in combination,

• (A) from 1 to 200 parts by weight of the reaction product of
• (i) an organosilicon resin consisting essentially of R.sub.3 SiO.sub.1/2 units and SiO.sub.4/2 units wherein R represents a monovalent hydrocarbon radical and the ratio of R.sub.3 SiO.sub.178 units to SiO.sub.4/2 units is from 0.6/1 to 0.9/1 and
• (ii) a polyorganohydrogensiloxane;
• (B) 100 parts by weight of an organosilicon polymer having the formula R"R.sub.2 'SiO(R.sub.2 'SiO).sub.x SiR.sub.2 'R", wherein each R' is selected from the group consisting of monovalent hydrocarbon radicals, each R" is selected from the group consisting of OH radicals and R' radicals, x has a value of from 0 to 5000, there being on average at least two radicals of said organosilicon polymer selected from the group consisting of vinyl radicals and hydroxyl radicals;
• (C) from 1 to 50 parts by weight of an organosilicon resin consisting essentially of (CH.sub.3).sub.2 (CH.sub.2 .dbd.CH)SiO.sub.1/2 units, (CH.sub.3).sub.3 SiO.sub.178 units and SiO.sub.4/2 units, said units being in a ratio of (CH.sub.3).sub.2 (CH.sub.2 .dbd.CH)SiO.sub.1/2 units to (CH.sub.3).sub.3 SiO.sub.1/2 units to SiO.sub.4/2 units of from 0.10/0.6/1 to 0.25/0.9/1;
• and
• (D) from 0.00003 to 0.035 parts by weight of a hydrosilylation catalyst, said parts being by weight of the metal in the catalyst.