Self-adhesive article comprising a support layer coated with an adhesive layer, said support layer being in the form of a foam and having an elongation at break ranging from 50% to 1200% measured according to the standard ISO 1926 at 23°C, and an apparent density ranging from 25 to 1200 kg/m 3 measured according to the standard ISO 845, said adhesive layer is obtained by crosslinking an adhesive composition comprising: a) at least one polymer or one blend of polymers having at least 20% of dialkoxylated silyl functions, relative to the total amount of silyl functions in the polymer or the polymer blend, and comprising at least 20% by weight, relative to the total weight of the polymer blend, of at least one polyurethane or of at least one polyether comprising two or three water-soluble dialkoxysilane-type end groups and corresponding to formula: in formula above, - B represents one of the two formulae below: where D and T represent a linear, branched, cyclic, alicyclic or aromatic, saturated or unsaturated, hydrocarbon-based radical comprising from 2 to 66 carbon atoms, optionally comprising one or more heteroatoms, - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, and linear, branched or cyclic, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 4 and R 5, which may be identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, it being possible for R 4 to optionally be involved in a ring, - n is an integer such that the average molar mass of the polyether block of formula -[OR 2] n - ranges from 300 g/mol to 40 000 g/mol, - m is an integer such that the average molar mass of the polymer ranges from 600 g/mol to 100 000 g/mol, - f is an integer equal to 2 or 3; b) at least one tackifying resin, and c) at least one crosslinking catalyst. a) at least one polymer or one blend of polymers having at least 20% of dialkoxylated silyl functions, relative to the total amount of silyl functions in the polymer or the polymer blend, and comprising at least 20% by weight, relative to the total weight of the polymer blend, of at least one polyurethane or of at least one polyether comprising two or three water-soluble dialkoxysilane-type end groups and corresponding to formula: in formula above, - B represents one of the two formulae below: where D and T represent a linear, branched, cyclic, alicyclic or aromatic, saturated or unsaturated, hydrocarbon-based radical comprising from 2 to 66 carbon atoms, optionally comprising one or more heteroatoms, - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, and linear, branched or cyclic, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 4 and R 5, which may be identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, it being possible for R 4 to optionally be involved in a ring, - n is an integer such that the average molar mass of the polyether block of formula -[OR 2] n - ranges from 300 g/mol to 40 000 g/mol, - m is an integer such that the average molar mass of the polymer ranges from 600 g/mol to 100 000 g/mol, - f is an integer equal to 2 or 3; - B represents one of the two formulae below: where D and T represent a linear, branched, cyclic, alicyclic or aromatic, saturated or unsaturated, hydrocarbon-based radical comprising from 2 to 66 carbon atoms, optionally comprising one or more heteroatoms, - R 1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, and linear, branched or cyclic, - R 3 represents a linear or branched alkylene divalent radical comprising from 1 to 6 carbon atoms, - R 2 represents a linear or branched alkylene divalent radical comprising from 2 to 4 carbon atoms, - R 4 and R 5, which may be identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, it being possible for R 4 to optionally be involved in a ring, - n is an integer such that the average molar mass of the polyether block of formula -[OR 2] n - ranges from 300 g/mol to 40 000 g/mol, - m is an integer such that the average molar mass of the polymer ranges from 600 g/mol to 100 000 g/mol, - f is an integer equal to 2 or 3; b) at least one tackifying resin, and c) at least one crosslinking catalyst.