Accession Number : ADA302932

Title :   Development of Coatings Performance Specifications for Steel Exposed to the Atmosphere. Aluminum Epoxy Mastic and Epoxy/Urethane Systems.

Descriptive Note : Final rept.,

Corporate Author : CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL

Personal Author(s) : Race, Timothy D. ; Kelly, Mark A.

PDF Url : ADA302932

Report Date : OCT 1995

Pagination or Media Count : 203

Abstract : Provisions of the Clean Air Act Amendments of 1990 will restrict the use of high solvent-content paints beginning in 1996. Procurement reform indicates the use of other than military specifications and emphasizes the use of commercial products and performance specifications. In response to procurement reform and air quality regulations, the U.S. Army Corps of Engineers must replace some of its existing coating specifications. This study developed two performance-oriented commercial item descriptions (CIDs) describing aluminum epoxy mastic and epoxy primer/polyurethane topcoat systems for use on minimally prepared steel surfaces that will be exposed to atmospheric corrosion. Accelerated corrosion tests were conducted to establish the performance envelope of these generic types of coating systems. Ten products, representative of each coating system, were exposed and evaluated for blistering, rusting, and rust undercutting. Standard Corps of Engineers coating systems were used as experimental controls and to establish the relative performance of the test coatings. The study recommends that the Corps submit the draft CIDS to General Services Administration for review and authorization.

Descriptors :   *CORROSION, *SPECIFICATIONS, *PERFORMANCE(ENGINEERING), *STEEL, *COATINGS, *ALUMINUM, *EPOXY COMPOUNDS, *URETHANES, *ATMOSPHERIC CORROSION, TEST AND EVALUATION, MILITARY REQUIREMENTS, EXPOSURE(GENERAL), POLYMERS, SURFACES, PROCUREMENT, ARMY CORPS OF ENGINEERS, AIR QUALITY, REGULATIONS, ACCELERATED TESTING, ENVELOPE(SPACE), RUST(OXIDATION).

Subject Categories : Coatings, Colorants and Finishes
      Inorganic Chemistry
      Polymer Chemistry
      Laminates and Composite Materials
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE