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Evaluation of Seven Sealer Systems for Metallized Zinc and Aluminum Coatings in Fresh and Salt Waters; Final rept
| 题名： | Evaluation of Seven Sealer Systems for Metallized Zinc and Aluminum Coatings in Fresh and Salt Waters; Final rept |
| 作者： | Race, T. D. |
| 关键词： | Aluminum coatings; Fresh water; Hydraulics; Metallizing; Primers; Salt water; Specifications; Structures; Urethanes; Zinc coatings; Salt spray tests; Epoxy coatings |
| 摘要： | A variety of metallizing systems and their recommended sealers are discussed in Civil Works guide specification CW-05036, Metallizing: Hydraulic Structures and Appurtenant Works. This study evaluated seven sealer systems for zinc and aluminum metallized coatings exposed to fresh and salt waters. Based on the results of this study, more specific recommendations for sealing metallized coatings can now be made. For zinc metallizing immersed in fresh water, the recommended sealer systems include epoxy, epoxy with wash primer, aluminum-pigmented urethane, or white-pigmented vinyl. Epoxy and epoxy with wash primer are recommended sealer systems for zinc metallized coatings exposed to salt water. Aluminum metallizing for fresh water applications should be sealed with the vinyl system evaluated in this study. None of the sealer systems evaluated for use on aluminum metallizing exposed to salt water performed adequately. Aluminum coating, Zinc coating, Coatings, Sealer systems, Fresh water, Salt water. |
| 总页数： | 27p |
| 报告类型： | 科技报告 |
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