Horace, I agree with you. Fred may be right, this stuff might not corrode the strings, but there is just something about the general procedure of squirting stuff on hammers and then pounding them in the piano that sends up a red flag to me. Just in case someone might use too much of it, and it is not all soaked or dired in, it will not only get on the strings, but it might spatter onto the damper felts. I didn't see and hear the demonstration, so I can't say whether or not it actually works. Jim Ellis
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