Section 5. PAINTING APPLICATION REQUIREMENTS

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Table 4-1. INTERCHEMICAL WET FILM THICKNESS GAGE

TB-43-0144 Painting of Watercraft Manual

Basic Preparations

SECTION 5.

PAINTING APPLICATION REQUIREMENTS

INDEX

Page

5-1.

General ..................................................................

5-2.

Painting Guidance...................................................

5-3.

Painting Schedules and Dry-docking Reports........

5-4.

Basic Preparations..................................................

5-5.

Multicoating Applications.........................................

5-6.

Basic Painting Procedures......................................

5-7.

Paintbrush Techniques............................................

5-8.

Paint Roller Techniques ..........................................

5-9.

Conventional Spray Painting Techniques................

5-10.

Common Spray Paint Defects...............................

5-11.

Paint Failures...........................................................

Table 5-1

Table for Determining Relative Humidity.................

Table 5-2

Air Temperature: Dew Point Spread Table..............

5-1. General. There are basic requirements that shall be met whenever significant painting is

accomplished aboard a US Army watercraft. Section 1 contains guidelines on when to paint. This section

covers basic paint application techniques that shall be followed.

5-2. Painting Guidance. When painting schedules conflict with the requirements given in this section,

guidance on paint compatibility and touchup procedures shall be obtained from 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.

5-3. Painting Schedules and Dry-Docking Reports. DA Form 5587-R shall be kept aboard the vessel

at all times. A report of vessel dry-docking, painting and condition of vessel bottom will be submitted to

the NMP. This report must be submitted within 90 days of refloat. The report will be mailed to

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.

5-4. Basic Preparations. To obtain optimum performance from a coating, certain basic procedures must

be followed, regardless of the type of equipment selected for paint application. Always refer to

manufacturing instructions for exact minimum and maximum temperatures, humidity, and application

requirements.

a. Temperature, Wind, and Humidity Requirements. It is essential for surface and surrounding

temperatures to be between 10 C and 32.2 C (50 F and 90 F) for water-thinned coatings, and 1.6 C

and 35. C (35 F and 95 F) for other coatings, unless the manufacturer specifies otherwise. Paint should

be applied only when surfaces are completely dry and surface temperature is at least 2.8 C (5 F) above

the dew point. The paint material should be maintained at a temperature of 18.3 C to 29.4 C (65 F to

85 F) at all times. Paint shall not be applied when the temperature is expected to drop to freezing before

the paint has dried. Wind velocity should be less than 15 miles per hour and relative humidity less than 80

percent.

b. Relative Humidity, Dew Point, and Dew Point Spread.

(1) A factor that plays an important part in painting is humidity, that is, the amount of water vapor

(water in a gaseous state) in the air. Any given volume of atmosphere at a given temperature can hold