Looking for light and dark military gray paint

I have been working on my RV and want to paint the aircraft as shown below (black tail). I need to find light and dark gray paint to match the color scheme. I can?t find anything on theses two codes ?36375? and ?35237? except for small models. Those are the correct gray paint designations. Do you know where I can find that paint or something close? Can I use an epoxy primer and leave the plane unpainted. I know people have done that before although it may not protect from getting corrosion. P.S. not trying to start a primer war I just would like to get as close as possible to the paint scheme.

Ask to get mixing formula...

Axel, since these are Federal Specification (FS 595) colors - have you tried getting your paint supply shop to contact their supplier and get the mixing formula?

Ask for FS 36375 and FS 35237. I have had duPont get cross references in the past.

gil A