MIL-PRF-23236 Coating Systems For Ship StructuresThis 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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13

MIL-PRF-23236D

TABLE IV. Identification characteristic values.8/

Coating component1/

Coating2/

Coating system3/

Property

Chemical nature

Principal constituents

(10 percent or more of total)

Percent nonvolatile vehicle

Percent volatile

Mass per liter (L) (gallon (gal))6/

Color

Viscosity6/

Flash point6/

Fineness of grind6/

Odor

Pot life5/

Drying or curing time - time to

recoat

Gloss and appearance

Flexibility

Mixing instructions5/6/

X4/

Application instructions

X5/

Sag resistance

X9/

Slip resistance

X7/

Fire resistance properties

NOTES:

Coating components are individually packaged components such as base component

(part A) and converter component or hardener (part B). Indicates only applicable

characteristics.

Coating is the resin base and converter, and any other constituents, mixed for application.

Coating system is the total system (number and types of coats and approximate dry film

thickness as tested for qualification approval.

Can be standard commercial or ASTM F718, except that shall include necessary 29 CFR

1910, 1915, 1917, 1918, 1926, and 1928 and have attached, or incorporate, a Material

Safety Data Sheet (MSDS) (see ANSI Z400.1).

Not applicable to Types VIII or VIIIa. A minimum pot life of 1 hour is required.

Not applicable to Types VIII or VIIIa.

Manufacturer shall provide a flame spread index and a level of smoke generation, standard

fire test method used, and a list of standards organizations endorsing the results.

Formulation changes. Any change in basic ingredients or manufacturing processes (other

than minor changes in pigment concentrations strictly to adjust final coating system color)

which would affect compliance with this specification must be reported to both the

contracting activity and NAVSEA. The Government reserves the right to require that all

tests specified in this specification be re-performed on a production batch of the coating

produced under the new formulation or process before any shipment is accepted. Any

formulation change not disclosed to NAVSEA will result in immediate disqualification of

the product.

The coefficient of dry friction of the topcoat of the coating system shall be greater than 0.6.