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07360 AN ACTIVE COATING AND NEW PROTECTION TECHNOLOGY FOR WEATHERING STEEL STRUCTURES IN CHLORIDE CONTAINING ENVIRONMENTS

Picture for 07360 AN ACTIVE COATING AND NEW PROTECTION TECHNOLOGY FOR WEATHERING STEEL STRUCTURES IN CHLORIDE CO
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Product Number: 51300-07360-SG
ISBN: 07360 2007 CP
Author: Desmond C. Cook
Publication Date: 2007
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A new coating that allows formation of the correct protective patina on weathering steel structures located in regions of high chlorine and/or high time-of–wetness, has been developed. The coating controls the time-of-wetness at the steel surface, allowing correct wet/dry cycling required for protective patina formation. It also binds chloride ions, and prevents them from reaching the steel surface and forming the incorrect, non-adherent rust. The active coating is not a paint, but rather accelerates correct patina formation to about 1-2 years compared with 8-16 years needed for bare weathering steel in nonpolluted atmospheric exposures. Corrosion rates have been decreased by a factor of 10 in high chloride locations.
A new coating that allows formation of the correct protective patina on weathering steel structures located in regions of high chlorine and/or high time-of–wetness, has been developed. The coating controls the time-of-wetness at the steel surface, allowing correct wet/dry cycling required for protective patina formation. It also binds chloride ions, and prevents them from reaching the steel surface and forming the incorrect, non-adherent rust. The active coating is not a paint, but rather accelerates correct patina formation to about 1-2 years compared with 8-16 years needed for bare weathering steel in nonpolluted atmospheric exposures. Corrosion rates have been decreased by a factor of 10 in high chloride locations.
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