Not sure about all the rest of this but WD40 will make carbon deposits go away. We cleaned small bleed air tubes on jet engines with it. Works great. Will also dissolve brushes on motors, generators etc.. Probably best to just to keep it away from these units and carbon bits you might need.
Not all carbon is bad....
Fred Sorensen
Sent from my iPad which is responsible for all grammar errors.
I should've noted that WD-40 does make an electrical contact cleaner, but
it isn't the oft used 'WD-40' product.
Rudy & Jill Sechez
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