<html> <body> Ron, Yes, this is the material used for knuckles and backchecks on many grand pianos. Don M. At 08:09 AM 2/15/2004, you wrote: <blockquote type=cite class=cite cite>I know Ecsaine is being used in upright butts and catchers, but I don't recall any mention of it's being used in grands or elsewhere in the piano. Is any manufacturer using Ecsaine as a knuckle covering, repetition lever skin or cloth, backcheck covering, or key bushing? If not Ecsaine, what other artificial leathers, etc are currently being used in pianos? Ron N _______________________________________________ pianotech list info: <a href="https://www.moypiano.com/resources/#archives" eudora="autourl">https://www.moypiano.com/resources/#archives</a></blockquote></body> </html>