Formulating Multifunctional Protective Ammunition Coatings

Report No. ARL-TR-2795
Authors: Kestutis G. Chesonis and Pauline M. Smith
Date/Pages: August 2002; 28 pages
Abstract: The U.S. Army Research Laboratory (ARL) Coatings Team and the U.S. Army Armament Research, Development, and Engineering Center (ARDEC) Munitions Metal Parts Team have established a major collaborative effort to eliminate various obsolescent coatings and consolidate them into a universal coating system. The exterior ammunition coatings provide ready identification and corrosion protection for long-term storage stability. The fast-drying exterior coatings used on large-caliber projectiles are susceptible to contamination and staining by explosives. Staining of the topcoat can occur during the loading process when explosives are poured into the steel projectiles after fabrication and painting. The ARL Coatings Team, in conjunction with ARDEC, has developed a modification to the ammunition coating specifications by combining the properties of the primer and topcoat into one coating. The new coating is ammunition-explosive compatible, highly resistant to corrosion, fast drying, low in cost, and can be used as a single coat for the medium- and large-caliber ammunition systems. A research and development effort is ongoing to substantially increase the chemical resistance of the coating. These coatings will comply with environmental regulations including The National Emissions Standard for Hazardous Air Pollutants, which eliminates the use of hazardous air pollutant solvents.
Distribution: Approved for public release
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Last Update / Reviewed: August 1, 2002