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);
• a transition metal complex;
• and
• an antioxidant;
• and
• a second part (component B) comprising:
• a per-compound;
• 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;
• optionally an acid scavenger AS compound selected from the group consisting of the sterically hindered bases;
• wherein:
• the composition comprises (in the first part and/or in the second part) at least one compound C comprising a radical -EWG1-CH2-EWG2- wherein EWG2 and EWG1 are each, independently of each other, an electron withdrawing group;
• and
• the first part of the composition does not comprise a per-compound.