Organopolysiloxane composition

An organopolysiloxane composition consisting of

• (A) a curable organopolysiloxane resin composition consisting of
• (1) 100 parts by weight of an organopolysiloxane resin having the unit formula
• R.sub.a SiX.sub.b O.sub.(4-a-b)/2
• wherein R is a substituted or unsubstituted monovalent hydrocarbon radical of 1-18 carbon atoms;
• X is a hydroxyl radical or an alkoxy radical wherein the number of carbon atoms in the alkoxy radical is 1 or 2, a has an average value of 0.9-1.8 and b has an average value of greater than 0 to 1;
• (2) 1-150 parts by weight, based on 100 parts by weight of (1), of an alkoxysilane having the general formula
• R'.sub.m Si(OR").sub.4-m
• wherein R' is a monovalent hydrocarbon radical having 1-6 carbon atoms, R" is an alkyl radical having 1-3 carbon atoms and the value of m is 0, 1 or 2;
• (3) 0.1 to 30 parts by weight, based on 100 parts by weight of (1), of an aminoalkylalkoxysilane having the general formula ##STR2## wherein R"' is hydrogen or the methyl radical, R.sup.iv is a divalent organic radical selected from the group consisting of alkylene groups of 1-3 carbon atoms, the phenylene group, --CH.sub.2 CH.sub.2 C.sub.6 H.sub.4 --, --(CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2), --(NHCH.sub.2 CH.sub.2 CH.sub.2).sub.y and --(NHCH.sub.2 CH.sub.2).sub.y wherein y has a value of 1-3;
• R.sup.v is a monovalent hydrocarbon radical;
• R.sup.vi is an alkyl radical of 1-3 carbon atoms and n has a value of 0 or 1;
• and
• (B) an epoxy resin fatty acid ester.