Question About Luftwaffe Paint Process

Instructions to manufacturers issued in November 1941 called for a single coat of lacquer 7122 in the desired color to be applied directly to the metal surfaces. As stated before, the major exception was fabric-colored control surfaces, which had a red-oxide anti-fungal primer applied first.

Seaplanes and marine-based a/c had some different procedures...but that doesn't apply here.

I was lead to believe that the paint used on the FW-190 series contained a resin which was engineered by Warnecke and Böhm during the '30s. It was formulated to directly bond with aluminum and magnesium. It eliminated the need  for a primer,and that saved production and costs, as well as saving weight on the completed aircraft. However, the fabric covered flying surfaces (airelons, evelators, rudder) received a red oxide primer that deterred insects, molds, and fungus. 

Hi;

   I think, Late in the war they didn't bother. Now, I could be dead wrong in that assumption. I have seen some Real " Butcher Birds" and they appeared( even if they were conversions) that unless they somehow scraped by,That early versions were primed.

I may be way off but I recal reading somwhere that they used RLM 02 as an exterior promer aswell, I stand to be corrected but if things like wheelwells were RLM 02 I cant think it to be so far fetched to think the same would be used elswhere.

Theuns