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国家卷材涂料协会(NCCA)发表覆铝用非铬酸盐立场文件
2010-12-24 来源:PCI
关键词:国家卷材涂料协会 NCCA Non-Chromates

NCCA Publishes Position Paper on Non-Chromates on Aluminum

CLEVELAND - The National Coil Coating Association (NCCA) has published a position paper discussing the appropriateness of ASTM B449 in preparing a standard specification for non-chromates on aluminum. The paper is part of the NCCA's collection of tool kits created to provide technical information on issues important in the coil coating industry.
Many professionals have become accustomed to using the ASTM B 449-93 (R2004) Standard Specification for Chromates on Aluminum to specify coating weights for prepainted aluminum; however, new treatments that do not use chromates are becoming more widespread. The B449 standard is not applicable to these new coatings. The paper discusses how specifying coating weights for new, non-chromate coatings requires a different approach.

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