Yes, DISINEX is an inhibited acid-based descaling agent with a color-depletion indicator that can be used in a wide range of applications: to remove rust and corrosion from metal structures, to remove lime scale from pipes and closed circulation systems of boilers and heat exchangers, to pickle concrete, and to remove traces of oxidation from various metals. The initial pink coloration of DISINEX changes to orange-yellow when the acid has lost effectiveness.