WWII US Navy Camouflage Paints Required for Accurate Models

What were the official color standards established by the U.S. Navy for ship camouflage during World War II?

The U.S. Navy utilized the Munsell color system to standardize camouflage, ensuring that paints produced by different contractors remained consistent across the fleet. These standards, codified in the SHIPS-2 series of documents, dictated specific reflectance values to help ships blend into the atmospheric haze of the Pacific or Atlantic theaters. For instance, the 5-series colors were designed to match the average light conditions encountered at sea.

However, these standards were not static. The Navy frequently revised specifications, such as the transition from the early Measure 1 patterns to the more complex Measure 32/33 Dazzle schemes. An important nuance is that paint batches often varied slightly due to wartime supply shortages and the use of different pigments by regional manufacturers. Consequently, two ships supposedly painted in the same Haze Gray could appear noticeably different after only a few weeks of exposure to harsh salt air.

How did the Measure 12 and Measure 22 camouflage schemes differ in their application and intended effect?

Measure 12 and Measure 22 utilized distinct geometric and tonal approaches to break up a ship's silhouette and confuse enemy rangefinders.

• Measure 12 utilized a graded system, applying dark colors at the waterline and transitioning to lighter shades higher up to mimic the horizon line.
• Measure 22 employed a simpler two-tone application, featuring a horizontal line of Navy Blue along the hull with Haze Gray covering all vertical surfaces above.
• Measure 12 was primarily designed for the Atlantic, where variable cloud cover and sea states required a more complex, blended appearance to remain effective.
• Measure 22 offered a more practical, labor-saving solution for the rapid operations of the Pacific fleet.

Which specific paint manufacturers provided the primary supply of camouflage coatings to the U.S. Navy between 1941 and 1945?

The U.S. Navy relied on a decentralized supply chain, sourcing paints from over 20 commercial manufacturers like Sherwin-Williams and Devoe & Raynolds. These companies were required to match the official Munsell color chips provided by the Bureau of Ships to maintain fleet-wide consistency during the intense production years of 1941 to 1945.

What were the primary differences between Haze Gray, Ocean Gray, and Navy Blue in terms of their spectral reflectance and usage?

These three paints were engineered with specific spectral reflectance curves to address how the human eye perceives objects against the horizon. Haze Gray, with its high reflectance, served as the standard for vertical surfaces to match the bright, sky-lit upper portions of a ship. Ocean Gray provided a middle-ground tone, while Navy Blue possessed the lowest reflectance, intended to darken the hull area where shadows and sea reflections dominate. For example, a destroyer in Measure 22 would use Navy Blue up to the main deck level to minimize its contrast against the dark water.

An exception exists with the 5-N Navy Blue, which often appeared nearly black in low light but could shift toward a distinct, chalky blue-gray as the binder degraded under intense ultraviolet radiation. This chemical breakdown meant that the intended spectral properties were rarely maintained for more than a few months at sea.

How did the U.S. Navy's camouflage paint formulations change to accommodate the transition from peacetime coatings to wartime requirements?

Wartime requirements forced a shift from durable, high-gloss peacetime paints to flat, non-reflective coatings that minimized glare and detection. The Navy prioritized rapid drying times and the ability to touch up surfaces quickly in forward operating bases. Many people assume that wartime ships were painted in a single, standard gray throughout the conflict, but the reality was that the Navy experimented with dozens of specific shades and schemes, constantly adjusting the chemical composition of the paints to resist the corrosive effects of salt spray and tropical heat.

What role did the Norfolk Navy Yard play in the development and standardization of ship camouflage colors?

The Norfolk Navy Yard functioned as the primary laboratory and testing ground for the development and distribution of the Navy's standardized camouflage measures.

• Norfolk served as the central hub for evaluating new color schemes before they were disseminated to other shipyards across the country.
• 1941 marked the year the Navy formalized its camouflage section, shifting the burden of research from private contractors to internal naval architects.
• Standardization efforts at the yard ensured that every vessel, regardless of its home port, adhered to the strict Munsell-based color requirements.
• Testing involved painting full-scale mockups to observe how light interacted with various paint textures and tones under diverse weather conditions.

How should modelers interpret historical color chips to achieve accurate scale representations of wartime naval vessels?

No, historical color chips should not be used as direct color matches for scale models because they do not account for the "scale effect." You must lighten your base colors by 10 to 20 percent to compensate for the way light interacts with smaller surfaces, preventing the model from appearing unnaturally dark.

What environmental factors and weathering conditions most significantly altered the appearance of camouflage paints on ships at sea?

Constant exposure to high-intensity ultraviolet radiation and concentrated salt spray caused rapid oxidation and chalking of the paint binders.

Use these relative values to determine where to place the most extreme weathering effects on your model, focusing on horizontal surfaces for UV damage and the hull for salt accumulation.