An adhesive, sealant or coating composition which comprises a silylated polyurethane resin and an adhesion promoting silane, wherein the silane has the general formula: [Y-G-(SiX u Z b v Z c w)] n (Formula 1) wherein each occurrence of G is independently selected from the group consisting of a divalent group derived by substitution of one hydrogen atoms of an alkyl, alkenyl, aryl or aralkyl group, and a divalent group derived by substitution of two hydrogen atoms of a heterocarbon, with G containing from 1 to 30 carbon atoms; each occurrence of X is independently selected from the group consisting of R 1 O-, -R 1 and -O(R 10 CR 11) f OH, wherein each occurrence of R 1, R 10 and R 11 is independently R; each occurrence of Z b is independently [-O(R 10 CR 11) f O-] 0.5, wherein each occurrence of R 10 and R 11 is independently R; each occurrence of Z c is independently -O(R 10 CR 11) f O- wherein each occurrence of R 10 and R 11 is independently R; each occurrence of R is independently selected from the group consisting of hydrogen, straight, cyclic or branched alkyl groups, alkenyl groups, aryl groups and aralkyl groups; and groups obtained by removal of one hydrogen atom of a heterocarbon, wherein each occurrence of R contains from 1 to 20 carbon atoms; each occurrence of the subscript f is an integer from 1 to 15, each occurrence of n is an integer from 1 to 100, with the proviso that when n is greater than 1, v is a greater than 0 and all the valences for Z b have a silicon atom bonded to them, each occurrence of the subscript u is an integer from 0 to 3, each occurrence of the subscript v is an integer from 0 to 3, each occurrence of the subscript w is an integer from 0 to 1, with the proviso that u+v+2w=3, each occurrence of the subscript t is an integer from 0 to 50, and each occurrence of Y is a monovalent organofunctional group; wherein said silane contains at least one occurrence of Z b or Z c. wherein each occurrence of G is independently selected from the group consisting of a divalent group derived by substitution of one hydrogen atoms of an alkyl, alkenyl, aryl or aralkyl group, and a divalent group derived by substitution of two hydrogen atoms of a heterocarbon, with G containing from 1 to 30 carbon atoms; each occurrence of X is independently selected from the group consisting of R 1 O-, -R 1 and -O(R 10 CR 11) f OH, wherein each occurrence of R 1, R 10 and R 11 is independently R; each occurrence of Z b is independently [-O(R 10 CR 11) f O-] 0.5, wherein each occurrence of R 10 and R 11 is independently R; each occurrence of Z c is independently -O(R 10 CR 11) f O- wherein each occurrence of R 10 and R 11 is independently R; each occurrence of R is independently selected from the group consisting of hydrogen, straight, cyclic or branched alkyl groups, alkenyl groups, aryl groups and aralkyl groups; and groups obtained by removal of one hydrogen atom of a heterocarbon, wherein each occurrence of R contains from 1 to 20 carbon atoms; each occurrence of the subscript f is an integer from 1 to 15, each occurrence of n is an integer from 1 to 100, with the proviso that when n is greater than 1, v is a greater than 0 and all the valences for Z b have a silicon atom bonded to them, each occurrence of the subscript u is an integer from 0 to 3, each occurrence of the subscript v is an integer from 0 to 3, each occurrence of the subscript w is an integer from 0 to 1, with the proviso that u+v+2w=3, each occurrence of the subscript t is an integer from 0 to 50, and each occurrence of Y is a monovalent organofunctional group;