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Mapeshield CI 300

Corrosion-Inhibiting Admixture for Concrete

Mapeshield CI 300 (formerly Polychem CI) is a liquid corrosion-inhibiting admixture based on calcium nitrite. Mapeshield CI 300 inhibits the onset of corrosion of reinforcing steel caused by chlorides typically present in de-icing materials. Mapeshield CI 300 meets or exceeds the requirement of ASTM C494, Type C; AASHTO M194, Type C; and ASTM C1582.