(EN) An acrylic adhesive composition is provided comprising a free radical polymerizable monomer an initiation system and a co accelerator that enhances the reactivity of the initiation system by increasing the reaction rate between the oxidizing agent and the reducing agent. The free radical polymerizable monomer preferably comprises methyl methacrylate (MMA) the initiator system preferably comprises N N diisopropanol p toluidine (DIIPT) and benzoyl peroxide (BPO) and the co accelerator preferably comprises 1 4 diazabicyclo[2.2.2]octane (or triethylene diamine (TDA)).