Facing resins having no adhesive properties to alloys have to depend on mechanical retention devices set on casting surface of crown and bridge. Therefore, it is natural that a direct bonding method between alloys and facing resins is being urgently required. The authors, in the previous Report [3], trying bonding between alloys and facing resins by using 3-chloro 2-hydroxy propyl methacrylate (CHPMA) which was said to have preferable adhesive properties to glasses and metals [1-4] , performed the bonding strength test between CHPMA treated alloys and methacrylate resin (selfcuring) to adhesive good results. Then in the present studies, the authors examine the bonding strength between thermo-setting resin and palladium alloy, and gold alloy.