Two-part curable composition

A two-part curable composition comprising:

• a first part (component A) comprising at least 51% by weight based on the total weight of the first part, of one or more cyanoacrylate monomer(s), provided that at least one of the cyanoacrylate monomer(s) is a cyanoacrylate monomer comprising a group —X—O—Rb wherein X is a linear or branched alkylene radical optionally interrupted with one or several oxygen atom(s), and Rb is an alkyl group;
• and
• a second part (component B) comprising:
• at least one Michael acceptor M selected from the group consisting of (meth)acrylic monomers, (meth)acrylic functionalized oligomers, (meth)acrylic functionalized resins, and mixtures thereof, provided that at least one of the Michael acceptor(s) M comprises at least one group of formula —O(CHRa—CH2O)n— where n ranges from 1 to 10 (Michael acceptor M1);
• and
• a nucleophilic initiator;
• wherein in the second part:
• the total content of Michael acceptor(s) M1 is of at least 20% by weight based on the total weight of the second part;
• and
• it does not comprise cyanoacrylate monomer.