We had a large discussion on this topic several years back. Check the archives if you want details, but my overall recollection of our consensus was that, after it evaporates, the oily residue "creeps" and should be avoided near sensitive piano parts. Phil Ryan Clyde Hollinger wrote: > Friends, > > Do any of you use WD-40 in pianos? I've always had the impression > they make the action parts oily, but I know of at least one RPT who > uses it a lot. Anyone want to come to its defense? What's your > experience? > > Regards, > Clyde > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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