Electrostatic powder painting of non-conductive substrates

Arthur J. McGinnis, Srini Raghavan, Tiffany Lindstrom, James Leal, Don R. Martin

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

A method to electrostatically powder coat non-conductive substrates has been developed. This method uses a thin coating of an aerosol antistat containing a fatty quaternary ammonium compound onto the substrate prior to powder painting. Microstructural analysis of the epoxy coatings has shown that gases are trapped within the coating causing voids. The formation of large voids with diameters as large as 50 μm appear to be due to water-vapor released from the non-conductive substrate during curing of the epoxy coating. Even with the voids within the epoxy layer, the coating on the antistat treated substrate passed military specifications for adhesion and solvent resistance.

Original languageEnglish (US)
Pages127-140
Number of pages14
StatePublished - Dec 1 1995
EventProceedings of the 1995 124th TMS Annual Meeting - Las Vegas, NV, USA
Duration: Feb 13 1995Feb 16 1995

Other

OtherProceedings of the 1995 124th TMS Annual Meeting
CityLas Vegas, NV, USA
Period2/13/952/16/95

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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