Solid Lubricant Coatings Curable at 225 F-300 F

Abstract

Experimental solid-film lubricant coatings based on urea- formaldehyde, epoxy-polyamide, epoxy-silane, alkyd-urea, melamine-acrylic, and epoxy-urea resins were formulated for use on the M16-A1 rifle. These coatings are cured after being applied to the rifle, and thus low temperatures are needed so as not to adversely affect the rifle's strength. None of these coatings when cured at temperatures of 225-300F had antiwear or corrosion preventing properties comparable to the fully cured MIL-L-46010A type of solid lubricant coating now used. Of the experimental formulations tested, those based on the urea-formaldehyde and epoxy-silane resins gave the best results. However, with the addition of a curing agent, boron trifluoride monoethylamine complex, to a qualified MIL-L-46010A base, the product could be cured at 275F, and all test requirements could be satisfied.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1972
Accession Number
AD0754568

Entities

People

  • George Murphy Jr.

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Corrosion
  • Curing
  • Curing Agents
  • Films
  • Formaldehyde
  • Friction
  • Literature
  • Lubricants
  • Material Degradation Processes
  • Materials
  • Materials Testing
  • Resins
  • Solid Film Lubricants
  • Solid Lubricants
  • Specifications
  • Standards
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Surface Coatings Technology.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).