Feb 16th, 2016: Graffiti

[xoxoxoBruce]

Made primarily of aluminum alloy, stainless steel and titanium, the Apollo 11 command module is one big reflective surface which the scanners have difficulty reading.

No chance of rust.
I don't think the paint is that thick, but it does look like it was a hurry up job and definitely with a brush. It may have been to cut down on reflective surfaces, or an antibacterial paint, or some Psychologist/Psychiatrist determined a uniform color/that color, was better for their heads.