- Provides Cathodic Protection To Steel. - Ideal For Pipes, Housings, And Structural Metal Exposed To The Weather. - Particularly Suited For Protecting Drilled or Abraded Surfaces - Sacrificial Coating Protects Ferrous Metal From Corrosion - For Use on Bare, Clean, Non-Rusted Steel And Seams - Suitable For Useas a Renovation Media: BS EN ISO 1461:1999 - >99% Pure Zinc At 88% Concentration In The Cured Film For The Optimal Balance Between Protection And Adhesion