You should be able to use the unit paint-locker...
I never had any problems with it when I was a lazy Private, but the First Shirt told me to keep my paints, cements, and thinners in the paint-locker in the Supply Room when I wasn't using them, due to the solvents and fire regs...
'Course, back when I was living in the EM barracks, you could smoke inside them, too... I had all the HAZMAT stuff in a toolbox I bought, so I just had to grab it when I was wanting to work, then return it before I left or racked out (The CQ had keys to that part of the Supply Room and the paint-locker, so I wasn't dependent on the Supply Daddy to be there...)
I spray-painted (rattle-can) outside over the bore-cleaning solvent barrel (Airbrush? Not on 480.00 a month), and used a drop-cloth to protect that US Government desk-top...