Sika® FerroGard®-670

About this product

Sika® FerroGard®-670 is a zinc based discrete sacrificial anode placed inside a concrete repair area in reinforced concrete structures which are corroding as a result of chloride induced corrosion. Sika® FerroGard®-670 anodes are placed along the perimeter of the repair area and fixed to the reinforcement prior to the application of a concrete repair system. The reinforcement outside the repaired area is at greatest corrosion risk owing to the passive condition of the reinforcement within the repaired area. Sika® FerroGard®-670 anodes corrode preferentially to the surrounding reinforcement offering protection against incipient corrosion damage. Advantages Anode Mortar Shell - uses proprietary technology that provides excellent transport of reactants to the surface of the zinc anode and corrosion products away from the surface of the zinc, using a chelation process. The encasing mortar will not cause corrosion of reinforcing steel. Proven technology supported by 10+ years of development and testing. Cost Effective lowers Life Cycle Cost of repairs. Auto-Corrosion encasing mortar maintains performance but does not auto- or self-corrode the zinc anode. Ease of Installation uses standard attachment methods known to industry. Self-Powered / Self Regulating creates own protective current that adjusts to demand. Maintenance Free requires no monitoring or maintenance. Safe to Use protects conventional and pre-stressed / post-tension reinforcing steel; moderate pH safe to handle without PPE. Tie Wires galvanized steel tie wires (annealed) are pre-twisted to form a cradle that accepts reinforcing steel, enables a better electrical contact and extends "throwing power". Service Life capable of 10+ years of protection depending on design and conditions.