METRIC
MIL-PRF-24596B(SH)
19 February 2009
SUPERSEDING
MIL-PRF-24596A(SH)
14 July 1999
PERFORMANCE SPECIFICATION
COATING COMPOUNDS, NONFLAMING, FIRE-RESISTANT
This specification is approved for use by the Naval Sea Systems Command and is available for use by all
Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers four classes and four grades of nonflaming, fire-resistant coatings which
are suitable for use where volatile organic compound (VOC) content air pollution regulations apply for solvents in
paints and for application over certain selected surfaces. Except for trace levels, all grades are free of lead,
chromium, cadmium, and asbestos (see 3.5.4). All grades have levels of hazardous air pollutants (HAPs) that do not
exceed applicable National Emission Standards for Hazardous Air Pollutants (NESHAP) levels (see 3.5.3 and 3.9).
Dry coating residues and debris are non-hazardous waste under U.S. Environmental Protection Agency (EPA)
regulations in effect on the date of this specification.
1.2 Classification. Coating compounds covered by this specification are nonflaming, fire-resistant, non-
intumescent coatings of the following classes, grades, and applications, as specified (see 6.2).
1.2.1 Classes. The classes of coating compounds are as follows:
Class 1
- Surface ship, general usage.
Class 2
- Submarine, general usage.
Class 3
- Submarine (underway use only) (see 6.1.2).
Class 4
- Anti condensation coating (surface ships only).
1.2.2 Grades. The grades of coating compounds are as follows:
Grade A - Water-based, air dry at temperatures less than 38 °C; maximum volatile organic content
(VOC) not to exceed 175 grams per liter of paint.
Grade B - Water-based, requiring baking at temperatures above 87 °C; VOC not to exceed 250 grams
per liter of paint.
Grade C - Solvent base, air dry at temperatures less than 38 °C; VOC not to exceed 250 solvent grams
per liter of paint.
Grade E - Solvent base, requiring baking at temperatures above 87 °C; VOC not to exceed 250 grams
per liter of paint.
1.2.3 Applications. The applications of coating compounds are as follows:
Application A - Steel.
Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems
Command, ATTN: SEA 05M2, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or
emailed to commandstandards@navsea.navy.mil, with the subject line "Document Comment". Since contact
information can change, you may want to verify the currency of this address information using the ASSIST Online
database at https://assist.daps.dla.mil.
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