Moisture curable silylated composition characterized in that it comprises, on the basis of the total weight of said composition: - from 35 to 65 % by weight of a polymer comprising at least 2 alkoxysilyl terminal groups of formula: wherein - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical having 1 to 4 carbon atoms, with the possibility, when there are several R 4 (or R 5) radicals, that these are identical or different, - R 6 represents a hydrogen atom or a radical comprising 1 to 6 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, or a radical selected among the radicals: - of formula (Ia): - of formula (Ib): or - of formula (Ic): wherein R 7 is linear or branched alkyl radical comprising from 1 to 6 carbon atoms; - n is an integer such that the average molecular weight of the polyether block of formula -[OR 2] n - is between 300 g/mole and 40000 g/mole, - m is an integer different from 0 such that the average molecular weight of the polymer is between 500 g/mole and 50000 g/mole, and - p is an integer equal to 0, 1 or 2; - from 2.5 to 12 % by weight of a polymer comprising at least 2 alkoxysilyl terminal groups of formula: wherein R 2, R 4, R 5, n and p are such as defined for formula; and - from 7.5 to 28 % by weight of an alkoxy modified silsesquioxane. - from 35 to 65 % by weight of a polymer comprising at least 2 alkoxysilyl terminal groups of formula: wherein - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical having 1 to 4 carbon atoms, with the possibility, when there are several R 4 (or R 5) radicals, that these are identical or different, - R 6 represents a hydrogen atom or a radical comprising 1 to 6 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, or a radical selected among the radicals: - of formula (Ia): - of formula (Ib): or - of formula (Ic): wherein R 7 is linear or branched alkyl radical comprising from 1 to 6 carbon atoms; - n is an integer such that the average molecular weight of the polyether block of formula -[OR 2] n - is between 300 g/mole and 40000 g/mole, - m is an integer different from 0 such that the average molecular weight of the polymer is between 500 g/mole and 50000 g/mole, and - p is an integer equal to 0, 1 or 2; - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical having 1 to 4 carbon atoms, with the possibility, when there are several R 4 (or R 5) radicals, that these are identical or different, - R 6 represents a hydrogen atom or a radical comprising 1 to 6 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic, or a radical selected among the radicals: - of formula (Ia): - of formula (Ib): or - of formula (Ic): wherein R 7 is linear or branched alkyl radical comprising from 1 to 6 carbon atoms; - of formula (Ia): - of formula (Ib): or - of formula (Ic): wherein R 7 is linear or branched alkyl radical comprising from 1 to 6 carbon atoms; - n is an integer such that the average molecular weight of the polyether block of formula -[OR 2] n - is between 300 g/mole and 40000 g/mole, - m is an integer different from 0 such that the average molecular weight of the polymer is between 500 g/mole and 50000 g/mole, and - p is an integer equal to 0, 1 or 2; - from 2.5 to 12 % by weight of a polymer comprising at least 2 alkoxysilyl terminal groups of formula: wherein R 2, R 4, R 5, n and p are such as defined for formula; and - from 7.5 to 28 % by weight of an alkoxy modified silsesquioxane.