Chemical Treatment for Aluminum Alloys, Low Electrical Resistance Coating
This specification establishes the engineering requirements for producing chemical-film coatings on aluminum and aluminum alloys and the properties of such coatings. Primarily for aluminum and aluminum alloys where increased corrosion resistance, improved paint adhesion, or a low-electrical resistance coating is required. Also useful for improving the corrosion resistance and paint adhesion properties of abraded or discontinuous anodized surfaces of aluminum and aluminum alloy parts.
AMS2474E stabilizes this document because this document contains mature technology that is not expected to change and thus no further revisions are anticipated.
AMS2474E has been declared "STABILIZED" by AMS Committee B Finishes, Processes and Fluids Committee. This document will no longer be updated and may no longer represent standard industry practice. Previously this document was reaffirmed non-current. The last technical update of this document occurred in October, 1987. Users of this document should refer any certification issues (e.g. exceptions listed on the certification report) to the cognizant engineering organization for their disposition.
NOTE: In many cases the purchaser may be a sub tier supplier and not the cognizant engineering organization.
AMS Committee B recommends that the following similar (e.g. properties, fit, form, function) specification be considered for future procurement. This listing does not constitute authority to substitute these specifications for the “STABILIZED” specification.
AMS2477 Conversion Coating for Aluminum Alloys Low Electrical Resistance Coating