Liquid composition in two-component form comprising a composition A and a composition B, said composition A comprising: A1) from 20% to 80% by weight of at least one silylated polymer comprising at least one, preferably at least two groups of formula: -Si(R 4) p (OR 5) 3-p wherein: ▪ R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, with the possibility that when there are several R 4 (or R 5) radicals, the latter are identical or different; ▪ p is an integer equal to 0, 1 or 2; A2) from 3% to 9% by weight of a mixture of at least two different aromatic-type catalysts (A2-1) and (A2-2), the catalyst (A2-1) being of phenolic type substituted by at least one - (CH 2)-N(R 7 R 8) function, where R 7 and R 8 represent, independently of one another, a linear or branched alkyl radical comprising from 1 to 4 carbon atoms; A3) from 0.1% to 2% by weight of at least one coupling agent for coupling between the silylated polymer present in the composition A and the epoxy resin present in the composition B; and said composition B comprising: B1) from 10% to 40% by weight of at least one epoxy resin; B2) from 0.2% to 3% by weight of at least one silanol condensation catalyst; the percentages by weight being expressed relative to the total weight of the liquid composition, the mixture of at least two catalysts (A2-1) and (A2-2) being chosen so that the following two relationships are respected: 48.00 méq / g ≤ Φ OH + Φ CH 2 − NR 7 R 8 ≤ 90.00 méq / g 0.10 ≤ Φ OH / Φ CH 2 − NR 7 R 8 ≤ 0.33 in said relationships and: - Φ represents the number of -OH functions borne by an aromatic ring expressed in milliequivalents per gram of liquid composition; - Φ(CH 2 -NR 7 R 8) represents the number of -CH 2 -NR 7 R 8 functions borne by an aromatic ring expressed in milliequivalents per gram of liquid composition. A1) from 20% to 80% by weight of at least one silylated polymer comprising at least one, preferably at least two groups of formula: -Si(R 4) p (OR 5) 3-p wherein: ▪ R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, with the possibility that when there are several R 4 (or R 5) radicals, the latter are identical or different; ▪ p is an integer equal to 0, 1 or 2; ▪ R 4 and R 5, which are identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, with the possibility that when there are several R 4 (or R 5) radicals, the latter are identical or different; ▪ p is an integer equal to 0, 1 or 2; A2) from 3% to 9% by weight of a mixture of at least two different aromatic-type catalysts (A2-1) and (A2-2), the catalyst (A2-1) being of phenolic type substituted by at least one - (CH 2)-N(R 7 R 8) function, where R 7 and R 8 represent, independently of one another, a linear or branched alkyl radical comprising from 1 to 4 carbon atoms; A3) from 0.1% to 2% by weight of at least one coupling agent for coupling between the silylated polymer present in the composition A and the epoxy resin present in the composition B; B1) from 10% to 40% by weight of at least one epoxy resin; B2) from 0.2% to 3% by weight of at least one silanol condensation catalyst; - Φ represents the number of -OH functions borne by an aromatic ring expressed in milliequivalents per gram of liquid composition; - Φ(CH 2 -NR 7 R 8) represents the number of -CH 2 -NR 7 R 8 functions borne by an aromatic ring expressed in milliequivalents per gram of liquid composition.