Accession Number:

AD0648180

Title:

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

Descriptive Note:

Corporate Author:

NAVAL AIR ENGINEERING CENTER PHILADELPHIA PA AERONAUTICAL MATERIALS LAB

Personal Author(s):

Report Date:

1966-12-13

Pagination or Media Count:

21.0

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.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Properties of Metals and Alloys
  • Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE