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Ship Camouflage
Instructions
United States Navy
Ships - 2
Revision 2
Bureau of Ships
June 1942
Camouflage
Paints
Color.
The Munsell Book of Color, as used by the Bureau of
Standards, the Naval Research Laboratory, and the Bureau of Ships, has been
found to be the most practical means for specifying and matching colors for
camouflage. The letters of the Munsell notation refer to the hue, the
first number refers to the reflection factor, and the second number refers to
the degree of purity of the hue, that is, the absence of gray.
Reflection
Factor.
The percent of incident light reflected from a
surface is an accurate method of describing the lightness or darkness of that
surface. It naturally follows that a light paint has a larger percent of
reflection than a dark paint. This percent may be called the reflection
factor. The reflection factor is independent of the color (hue) of the
surface. It may specify a neutral gray which has no hue.
Gloss.
Gloss is the power of a surface to reflect light
specularly, which means like a mirror, and a surface which is not glossy is
said to be matt. A convenient method of measuring gloss is based on the ratio
of the amount of light reflected at an angle of 60 degrees from the surface in
question to the amount reflected at the same angle from polished black
glass. This scale has been used in the accompanying table. High
gloss is very objectionable in camouflage paint.
Mixing
The camouflage systems established to date require
the use of white and five colors. Samples of the colors, enclosed in an
envelope, accompany this book. Deck Blue paint, for all surface vessels
except carriers, and Aircraft Carrier Deck Stain, are supplied ready-mixed
from the Navy Yards. Navy Blue, Ocean Gray and Haze Gray paints are made
by adding to 5 gallons of white untinted base (5-Ua) the stated number of
pints of dark blue-black tinting material (5-TMa) listing in the table
below. Thayer Blue is made by mixing 5 gallons of 5-Ua with a special
tinting material (5-BTM) in the proportions given below:
| Color |
Formula |
Munsell |
Reflection
Factor |
Gloss |
Number
of Pints
In Mixture |
| Navy Blue |
5-N |
PB 3.4/3 |
9% |
4 |
15 pints of 5-TMa |
| Ocean Gray |
5-O |
PB 5/3 |
18% |
3 |
5 pints of 5-TMa |
| Haze Gray |
5-H |
PB 6/2 |
28% |
3 |
2 pints of 5-TMa |
| Deck Blue |
20-B |
PB 3/4 |
7% |
11 |
Issued ready-mixed |
| Thayer Blue |
5-B |
PB 8/2 |
50% |
3 |
1 pints of 5-BTM |
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