Accession Number : ADA309468

Title :   Reduced Volatile Organic Compound (VOC) Ammunition Coatings.

Descriptive Note : Progress rept. Oct 94-Sep 95,

Corporate Author : ARMY RESEARCH LAB FORT BELVOIR VA

Personal Author(s) : Duncan, Jeffrey L.

PDF Url : ADA309468

Report Date : MAY 1996

Pagination or Media Count : 18

Abstract : Production requirements and film thickness limitations typically require that ammunition coating systems consist of a single film. For large-caliber ammunition, the coating is MIL-E-5289 1, Enamel, Lusterless, Zinc Phosphate, Styrenated Alkyd Type. This single film must provide the corrosion resistance of a primer plus such properties as color, gloss, and solvent resistance that are required of a topcoat, a compromise at best. In addition, the specification currently has a VOC content of about 600 g/l as applied, and it allows the use of lead chromate in three of the colors at up to 24% by weight of the pigment. Federal and local regulations resulting from the Clean Air Act and its amendments restrict the amount of VOC emitted during the application of protective coatings, and regulations on worker safety restrict exposure to hazardous materials such as chromates. These materials also generate hazardous wastes and the associated high disposal costs. This report summarizes progress in developing ammunition coatings that perform as well as or better than current systems, but at reduced VOC levels with chromate-free pigmentation.

Descriptors :   *REDUCTION, *COATINGS, *AMMUNITION, *ORGANIC COMPOUNDS, REQUIREMENTS, THICKNESS, UNITED STATES GOVERNMENT, HIGH COSTS, PRODUCTION, EXPOSURE(GENERAL), RESISTANCE, FILMS, CHROMATES, COSTS, PRIMERS, CORROSION RESISTANCE, COLORS, SAFETY, PROTECTIVE COATINGS, SOLVENTS, VOLATILITY, LEAD COMPOUNDS, CALIBRATION, WASTE DISPOSAL, HAZARDOUS WASTES, REGULATIONS, HAZARDOUS MATERIALS, PHOSPHATES, ZINC COMPOUNDS.

Subject Categories : Organic Chemistry
      Inorganic Chemistry
      Coatings, Colorants and Finishes
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE