Thanks Scott and Chip As I said, in Steve Brady's book on Field Repairs, at the back, there is a chart of lubricants and where one can/not and should/not apply them. The Naphtha mineral oil, Zippo fluid, is recommended for center pins and can be used on string friction/bearing points too. I think I will stick with this for the mean time. Thank you, Best regards, Mark Davis -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110222/cac0285e/attachment.htm>
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