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Sika® Galvashield® XP/XPT/XP2/XP4 embedded galvanic anodes are used in concrete rehabilitation to prevent the formation of new corrosion sites adjacent to completed patch repairs. Sika® Galvashield® XP/XPT/XP2/XP4 anodes consist of a sacrificial zinc core that is activated by the surrounding specially formulated cementitious mortar. The anode is quickly and easily fastened to the exposed reinforcing steel. Once installed, the zinc core corrodes preferentially to the surrounding rebar, thereby providing galvanic corrosion prevention to the adjacent reinforcing steel and mitigating ‘ Incipient Anode’ formation.