Here's what was written on VA-165's camo experiment in the Summer 1990 edition of The Hook magazine (used here by permission of The Hook magazine)
BOOMERS IN CAMOUFLAGE
In a ComNavAirPac approved project, the Boomers of VA-165 painted some of their livery in temporary browns and greens and flew them at Red Flag and during their around-the-Horn transit in Constellation. The paint used is waterbased, can be quickly applied over existing paint and (most important) can be quickly removed using normal aircraft wash procedures.
The project was developed by LT Mike Overson and LCDR Graham Gordon of VA-165's maintenance department with the intent of using the aircraft color scheme to tactical advantage during Exercise Red Flag 89-5 at Nellis AFB. LT Overson had previously worked for Boeing Aerospace co. and discovered the alkaline-based emulsion used to protect parts during manufacturing there. After gaining permission for the test in early August 1989, the Boomer corrosion control work center, under the supervision of AMS1 Richmond Voss, applied the two-tone brown paint overnight to two A-6E aircraft. Details such as simulated canopies painted on the undersides of the aircraft were added. Tactical use of the scheme brought positive results during numerous Red flag missions. Once back at Whidbey, the paint was removed.
Phase II of the test took place at sea in Connie in winter 1990. The coating was tested for resistance to sea spray and catapult steam as well for resistance to visual acquisition over different terrain. Phase III is scheduled for fall 1990 and includes mixing of separately stored pigments and adding them to a neutral base to crease the desired color.
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It's not known how Phase III turned out. In the article, there's one color inflight shot and one b/w flight deck shot of the camo birds.