Corrosion of the reinforcing steel is the #1 cause of concrete damage, but it is often overlooked when making local patch repairs. PatchGuard™ galvanic anodes are designed to extend the life of patch repairs by providing corrosion protection to the steel in the most vulnerable area surrounding a new concrete patch. When electrically connected to the steel, PatchGuard™ forms a galvanic cell and preferentially corrodes/consumes, while offering corrosion protection to the steel reinforcement located outside of the new concrete patch.

Rather than the traditional approach of attaching galvanic anodes to exposed steel within the patch repair, PatchGuard™ anodes are located within the surrounding, sound concrete. Protective current is delivered directly to the steel outside the patch repair - which is at greatest corrosion risk. As PatchGuard™ is positioned within the host concrete; there is no compromise in the quality of the concrete repair material.