plate spraying!

[jptuner]

hello all,
           I have been wondering when spraying plates with spray paint,
can the oils from the paint effect the pin block,of course when i
restring i always spray the plate to make it look good, the plate does
not come out ,these are restringing jobs in homes or my shop, i have
restrung close to a 100 or so pianos and have not had a problem yet.But
does it or could it effect the pin block.PS I have never used a clear
coat on the finish, but my results are very pleasing,i will try the
clear on my next job.
                            jptuner!