Loctite 142747 sf 7457 tak pak activator 150ml loctite 142747 p loctite sf 7457 142747 is used where increased cure speed of loctite cyanoacrylate adhesives is required p p it can be applied to the bond before or after assembly when used pre applied its presence can be detected by fluorescence p loctite 142747 sf 7457 tak pak activator 150ml