Development of an Alkaline-Inhibited Epoxy Primer for Magnesium Alloys

Abstract

Current primer coatings, using metallic chromates as the sole corrosion inhibitors, have not provided adequate protection for magnesium alloys on major aircraft components. However, it has been found that such metals can be protected by an epoxy formulation similar to specification MIL-P-23377 if a specific ratio of magnesium oxide to strontium chromate is substituted for the existing inhibitive filler. Salt-spray tests, with and without sulfur dioxide additions, have been used to demonstrate the effectiveness of this material on wrought and cast magnesium alloys. In addition, other laboratory tests have verified that this coating is capable of meeting the performance requirements of current tactical aircraft. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 09, 1976
Accession Number
ADA036010

Entities

People

  • David F. Pulley

Organizations

  • Naval Air Warfare Center Warminster

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Adhesion
  • Aircraft Equipment
  • Aircrafts
  • Chemical Synthesis
  • Chemistry
  • Corrosion
  • Films
  • Magnesium
  • Magnesium Alloys
  • Magnesium Compounds
  • Materials
  • Physical Properties
  • Salt Spray Tests
  • Salts
  • Standards
  • Test Methods
  • Vehicles

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Software Engineering
  • Surface Engineering/Surface Coating Technology.