MIL-PRF-23236D

Abstract

This specification covers four types of air pollution regulated ship and structure coatings that comply with the National Emission Standards for Hazardous Air Pollutants (NESHAP) for shipbuilding for state and federal regulations. There are nine classes of coating systems. There are four grades of coating systems based on temperature of application and cure. In addition to tanks, all paint systems qualified to this specification are suitable for use on any ship structures, interior or exterior, for corrosion control. Except for trace levels, all types are free of lead, chromium, cadmium, and asbestos (see 3.2.3). All types have levels of hazardous air pollutants (HAPs) that do not exceed applicable NESHAP levels (see 3.2.2.2). Dry Type V, VI, VII, and VIII coating residues and debris are non-hazardous waste under U.S. Environmental Protection Agency (USEPA) regulations in effect on the date of this specification. Type VII coating will not have any solvent added to either the base resin component or the hardener component.<b><u>Intended Use:</u></b> Although the different types of coating systems of this specification afford superior protection for various shipboard tanks, structures, and similar ship applications, the coating systems are not necessarily interchangeable or of equal merit for all kinds of tanks, structures, and conditions of application. Class 10 coatings are not intended for new construction, but for limited touch-up only where localized repairs will be no more than 3 percent of the total surface area. Classes 11, 12, and 13 are for use as appropriate in either new construction or maintenance painting. Types VIII and VIIIa are powder coatings intended for use in severe marine service such as immersion and wet space application.<br>