High Solids Coating System

Abstract

The goal of this program is the development of a 65% volume solids, sprayable (airless electrostatic method), polyurethane exterior aircraft coating meeting MIL-C-83286 performance specifications. A high solids coating can significantly reduce solvent emissions and help the Air Force meet EPA/OSHA requirements for reduced environmental pollution and increased worked safety. One formulation consisting of a combination of Acryloid AU-568 (oxazolidine), NIAX PCP-0300 (polyol), and Desmodur N-100 (polyisocyanate) exhibited performance properties close to MIL-C-83286. Additional effort is required to simultaneously maximize coating flexibility and solvent (aircraft fluid) resistance. The pot life of the mixed two-package system and the final spray viscosity also must be improved. Potential polyol and polyisocyanate candidates can be successfully screened using concentration-viscosity diagrams. The effects of solvent on solution rheology were greater than expected.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1979
Accession Number
ADA076433

Entities

People

  • Gretchen Mckay

Tags

Communities of Interest

  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Adhesion
  • Aerospace Industry
  • Air Force
  • Aircrafts
  • Amorphous Materials
  • Ball Mills
  • Chemical Properties
  • Chemical Synthesis
  • Chemistry
  • Governments
  • Low Temperature
  • Materials
  • Materials Laboratories
  • Measurement
  • Organic Chemistry
  • Physical Properties
  • Test Methods

Readers

  • Polymer Science and Engineering.
  • Software Engineering