Randy,
If all the above great suggestions don't happen you can go to the wood working catalogs and get the compound they sell for table saws, etc. for that purpose. Try Rockler first if it gets to that, but the other guys have given really good clues.
By the way, do you use a ventless gas heater in the shop by any chance? They will really introduce moisture and rust into the shop - I found out the hard way!
Blessings,
Will