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.

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MIL-PRF-23236D

NSF INTERNATIONAL (NSF)

NSF Standard 61

Drinking Water System Components - Health Effects

(Copies of this document are available from NSF International, 3475 Plymouth Road, Ann Arbor, MI 48113-

0140 or online at www.nsf.org.)

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP-10

Near-White Blast Cleaning

SSPC SP-11

Tool Cleaning to Bare Metal

SSPC SP-15

Commercial Grade Power Tool Cleaning

(Copies of these documents are available from SSPC Publication Sales, 40 24th Street, 6th Floor, Pittsburgh, PA

15222-4656 or online at www.sspc.org.)

2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited

herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws

and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Qualification. Coating systems furnished under this specification shall be products that are authorized by

the qualifying activity for listing on the applicable qualified products list before contract award (see 4.2 and 6.3).

Qualification inspection shall consist of compliance with tables I, II, and III (Types VIII and VIIIa), verification of

table IV identification characteristics, and compliance with all other applicable requirements of this specification.

3.1.1 Description of coatings. At the time of qualification submittal, manufacturer shall identify all coatings

and coating component constituents of the coating system being qualified by the following;

Type, class, and grade for which qualification is sought, and

Unique product nomenclature.

At a minimum, this unique product nomenclature shall consist of component name, alpha-numeric identifier,

and color. Nomenclature shall be as specific as necessary to uniquely identify each total system component.

3.2 Materials. Each individual component and mixed final coating of the total coating system qualified to this

specification shall, when mixed and applied in accordance with the manufacturer's instructions, be in accordance

with the appropriate requirements. The composition of the coating furnished to this specification shall be the

responsibility of the manufacturer, except as limited by this specification.

3.2.1 Description. Where coatings are composed of components to be mixed at the time of application, the

proportions for the ratio of resin component to hardener shall be 4:1, 3:1, 2:1, or 1:1 by volume. Except for

Type VIII (all classes) and Class 18 (all types) coatings, the coating system shall consist of at least two full coats

3.2.2 Component chemistry (except Types VIII and VIIIa). All coatings shall be composed of two

components:

One component shall contain chemically cross linking resins (base) (see 6.6.2), and

A second component which shall contain a curing agent (converter).

3.2.2.1 Powder coatings. Type VIII and VIIIa powders are single component materials and shall be applied and

cured by industry accepted application procedures in accordance with the powder manufacturers' instructions to

obtain the performance requirements in this specification.

3.2.2.2 VOC limits. When tested as specified in 4.5.5, the VOC of all individual coatings of coating systems

shall be less than that allowed for the type being qualified.