EVALUATION OF MIL-P-23377 AND MIL-P-0023377 AMENDMENT 2 EPOXY PRIMERS ON 7075 ALUMINUM CONTAINING CADMIUM PLATED HIGH STRENGTH STEEL FASTENERS,

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Abstract:

A comparison is made of the corrosion protection of MIL-P-0023377, Amendment 2 and MIL-P-23377 epoxy primers, used on thick 7075 aluminum with cadmium plated high strength steel fasteners and topcoated with either MIL-C-22750 epoxy or MIL-L-81352 acrylic lacquer. Superiority of the former primer, as evidenced by greater protection around fasteners where paint had cracked, is attributed to higher leaching of chromate in both distilled and sea water. Preferential use of former is recommended.

Author(s):
Ohr, J. ; Falkowitz, A. I.
Author Organization(s):
NAVAL AIR ENGINEERING CENTER PHILADELPHIA PA AERONAUTICAL MATERIALS LAB
Annotation:
Protective treatments for steel fasteners.
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NAEC-AML-2530
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
FASTENINGS, PAINT PRIMERS, ALUMINUM ALLOYS, STEEL, CADMIUM, PLATING, CORROSION RESISTANCE, VARNISHES, CRACKS, PLASTIC PAINTS
Field(s)/Group(s):
Coatings, Colorants and Finishes, Properties of Metals and Alloys, Couplers, Fasteners and Joints
Report Date:
1966 Dec 13