<html> <body> Dave, <x-tab>        </x-tab>My guess would be condensation. Seems that the temperature was lower than could hold the RH of the air. Greg Newell At 12:57 AM 2/13/2004, you wrote: <blockquote type=cite class=cite cite>List= ers, I had a tuning today on a brand new Kawai RX-3 6 foot 2 grand.  The piano has been in the house for maybe 3 months.  It was closed up tight, but when I opened it, I saw that rust was already starting to form on the strings and on some of the pins.  I was shocked, and was at a loss to figure out how this could happen, especially in a house with radiant heating(that's another issue).   It is on caster cups on a painted cement slab floor, and there are no plants in the room. I had a few ideas, and I'm pretty sure I figured out the reason for this early oxidation, especially after talking to the rather freaked-out owner tonight. So what, in your esteemed opinions, might this be caused by? Dave "rust never sleeps and neither do I" Stahl --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (<a href="http://www.grisoft.com/"= eudora="autourl">http://www.grisoft.com</a>). Version: 6.0.580 / Virus Database: 367 - Release Date: 2/6/2004</blockquote> <x-sigsep></x-sigsep> Greg Newell Greg's piano Forté <a href="mailto:gnewell@ameritech.net"= eudora="autourl">mailto:gnewell@ameritech.net</a></body> </html>