WD-40: THE SLIPPERY MIC MORSEL

There was a time when it seemed the blue & yellow cans of WD-40 were as common on the landscape as phone booths were.

Remember? It was used for everything from noisy hinges to diaper rash. Maybe. Needless to say, cans of '40' were part of every work bench, shop layout, and audio tech's bag of tricks. For our applications? Sure, it's got plenty of uses: Freeing frozen connectors, protecting against corrosion, even cleaning accumulated crud from the nooks and crannies of Lord Microphone.
HOWEVER! Unlike those golden olden days of WD-40's commercial emergence, there are applications you should steer clear of. NO WD-40 in or on your harps or anything that goes in your mouth; Believe it or not, DON'T use WD-40 to clean volume controls or any type of electronic potentiometer as it will tend to attract the very stuff (dust) that causes the audio scratchiness in your pots that you're trying to get rid of. For THAT mission, obtain a good electronic contact cleaner that's marketed as such. CRC's products come to mind...