Many years ago I lubed several items from guns to shutters using a moly spray that was manufactured for off set printing presses. Since the spray came out as a liquid, I sprayed a bit (puddle) into an empty 35mm film can.
then took a four ought sable brush and dipped it into the moly and carefully applied it to the rotating pins in my Packard shutters when dry replaces the shutter leaves. Next I took out the air piston and put a drop or two on it. The shutters I did this to are still in use and working today. The same with several 1911 A1 Colt ACP's and about a half dozen Walther's. I use it today in my CAS single actions and lever guns. I have also used it on view camera tracks and gears applied the same way. All of my LF lenses and shutters have been lubed with it with out any problem. Apply it as thin as possible, as the layers become additive and will stick an air piston if too much is used. I also own several DeGroff air piston shutter releases that seem to enjoy the use of moly lube on them. Dip the brush in the film can
place a drop or so around the brass piston and perhaps a drop on the plunger will last a long time. Today I use a Moly spray designed for treating
rifle barrels and use in reloading. I buy it from Brownell's or Cabellas! Small to tiny amounts work best, when done put the lid back on the film can, it
generally lasts for several days before the solvent totally evaporates.
Charlie.......