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 NOTE
When touchup painting, use the same paint system (or equivalent) as to what is currently being
used on the craft. Check with the Watercraft Inspection Branch to verify your current paint
system. Commander, US Army Tank-Automotive and Armaments Command, Troop Support
Group, Watercraft Inspection Branch, ATTN: AMSTA-LC-CJWW, BLDG 2796, Fort Eustis, Virginia
23604-5286. Faxes can be sent to (757) 878-5109.
a. When to Paint. Touchup or spot painting shall be performed when less than 50 percent of the paint
surface or paint system of a major area has deteriorated to the extent that the underlying structure is no
longer protected.
b. Preparation. Deteriorated surfaces shall be cleaned in accordance with Section 3. Adjacent areas of
intact paint shall have marine organisms removed and the edges feathered. Clean all intact paint in
accordance with Section 3.
1-8. Major Painting.
a. When to Paint. Major painting shall be performed when more than 50 percent of the paint surface, or
paint system of a major area has deteriorated to the extent that the underlying paint or structure is no
longer protected. The 50 percent failure stipulation applies when several separate damaged areas add up
to more than 50 percent of total surface, as well as when the damage is concentrated in one area.
b. Renewal of Paint Surface. Accomplish when only the finish paint on a major area has deteriorated
and the underlying paint is in good condition; new finish paint shall be applied over the intact undercoats.
(1) Hull surfaces shall be cleaned by abrasive blasting, pressure washing with fresh water, or by
hand or power cleaning methods. Sound, adhering paint shall be left intact; loose, blistered paint, and
deteriorated areas of old paint shall be removed. Old tightly adhering paint shall be featheredged
sufficiently to permit the new paint coating to form a uniform and continuous surface.
(2) All surfaces to be painted shall be cleaned in accordance with Section 3.
c. Renewal of Paint System. Accomplish when the paint system on a major area has deteriorated
through the primer coat. All existing paint shall be removed.
(1) Cleaning. The resulting bare structure shall be cleaned to remove all oil, grease, moisture,
corrosion by-products, and other surface contaminants in accordance with Section 3. The clean surface
shall then be primed within eight hours after cleaning, to prevent rusting, as specified in applicable tables
in Appendix B.
(2) Painting. Surfaces shall be painted in accordance with Section 5 through 7 and Appendixes.
a. Touchup Painting. For touchup painting, one brush coat shall be considered the equivalent of one
mil, and two brush coats the equivalent of two mils of dry film thickness.
b. Major Painting. For major painting, a film thickness gage shall be used to assure proper paint film
thickness application. At least one random reading shall be taken at appropriate stages for each 100
square feet (9.3 square meters) of surface area, or less, to determine conformity to minimum film
thickness requirements of the applicable paint system.
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