Anaerobic Adhesives are used as 1-component-system. Assigned monomers of (modificated) acrylic acid esters harden out similarly like the methylmethacrylates by a radical chain mechanism. The curing process is only possible under exclusion of oxygen (anaerobic). This mechanism results at the same time in the main application. If anaerobic adhesives will be used in a close metal gap by exclusion of oxygen, the hardening will be initiated. By this characteristic long open times are possible.
Anaerobic adhesives are designed for use on assemblies with threaded fasteners. Prevent vibration & loosening of parts & seal against leakage and internal corrosion, typical applications are gasketing, pipe sealants and threadlockers.