I would start with total disassembly and a long soak in lacquer
thinner (overnight in a closed container?). Try a little rubbing
with a 3M type scrub pad. Should clean right up unless the
residue is from a catalyzed finish or some such.

Paint strippers would be the next step, but they might eat seals
and o rings.

--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




"Bob Engelhardt" wrote in message
. ..
What about when the object is aluminum and you don't want to use
a strong basic? (I found a preme-o Devilbiss spray gun at the
dump that I need to clean.)

Bob