Clearfil DC Activator 4 mL Bottle. A Dual-Cure Catalyst that contains alcohol, initiators and unique, advanced catalysts. For use with CLEARFIL SE BOND 2, CLEARFIL SE Protect and CLEARFIL Universal Bond. When mixed with bond/adhesive they become dual-cure, truly universal adhesives with low film-thickness and high self-cure bond strength. 4 ml bottle