Greetings,
The following is a response shared by our venerable colleague, Ed Whitting, RPT. He has given his permission for me to share it here.
"This is regarding Leather Key Bushings. Why they worked in the first place is beyond me. Why they are put in as replacements is another puzzle to me. I have never been able to make them work as trouble-free as felt. I have tried everything under the sun to make leather as friction-free as felt and have not been successful. I put them in a U-1 Yamaha at Disneyland (Ragtime piano played all day and night). After three weeks, I was asked to take them out: They were too hard on the hands of the players. In that single piano, I reduced the friction somewhat by using McLube 444 on the pins and bushings. 444 is not made anymore, as far as I know. McLube has a new product called Sail Coat. I have used it on two keyframes, and I like it very much; like 444, it bonds to metal IF it is applied according to the directions."
Beat,
Alan
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Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
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