Clyde, WD-40 , RP7 and any such spray will clog up the centre pins, expand the centre pin bushings and cause havoc to the action. Only to be used on pedal bearings and castors. I have had to replace hammer and jack flanges because of a previous tuner used RP7 on the action instead of replacing a tight centre pin. Kerry Cooper Piano Technician Accredited Member: APTTA, PTTGQ brispiano@optushome.com.au -----Original Message----- From: Clyde Hollinger [mailto:cedel@supernet.com] Sent: Wednesday, 2 June 2004 9:45 AM To: pianotech@ptg.org Subject: WD40 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 --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.693 / Virus Database: 454 - Release Date: 31/05/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.693 / Virus Database: 454 - Release Date: 31/05/2004
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