Replacement Alternatives to the Chromate Wash Primer DOD-P-15328D

Report No. ARL-TR-3220
Authors: Pauline Smith, Kestutis Chesonis, Christopher Miller, and John Escarsega
Date/Pages: June 2004; 26 pages
Abstract: The major advantage of the Department of Defense (DOD)-P-15328DD1 wash primer is to enhance corrosion resistance through the passivation of the metal surface. In the U.S. Army?s Chemical Agent Resistant Coating (CARC) System, the wash primer DOD-P-15328D is overcoated with an epoxy primer and followed by a camouflage urethane topcoat. Several coating procedures specify the use of the wash primer, DOD-P-15328D, as a surface treatment prior to the application of an epoxy primer/polyurethane topcoat CARC system. The current wash primer contains large amounts of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) that impact coating operations due to air pollution regulations that may require the use of control devices to reduce the total VOC/HAP emissions to the atmosphere. The U.S. Army Research Laboratory (ARL) has evaluated new water-reducible wash primers that do not contain hexavalent chromium and significantly minimize VOC and HAP. Coatings have been extensively tested for accelerated corrosion and adhesion and have completed 2 years of outdoor exposure testing. ARL will conduct tests on military equipment to validate the lab and controlled testing previously completed. Affected installations, facilities, and weapons systems are excellent candidates for this evaluation because application of DODP- 15328D is a key step prior to applying the remaining CARC system coating.
Distribution: Approved for public release
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Last Update / Reviewed: June 1, 2004