I've also heard that methanol works a little better. But not only is it harder to get, it is much more toxic. So I stick with the friendlier chemical. Ryan On Sun, Jul 31, 2011 at 10:15 AM, Tom Gorley <tomgorley88 at sonic.net> wrote: > On trips to the Wurlitzer and Baldwin factories in the 70's, Baldwin said > use 50/50 and Wurlitzer said 2 to 1 in favor of alcohol. Both said to use > methanol and not denatured alcohol. I never knew why. Your success with > denatured seems to make that advice moot, especially with methanol being a > little harder to obtain. > > ---Tom Gorley > > > > On Jul 31, 2011, at 8:43 AM, Ryan Sowers wrote: > > I've tried various ratios. I'm not completely convinced that it makes a lot > of difference. Personally I use 50/50 denatured alcohol and water. I think > air drying works than artificially drying it with a heat gun or hair drier. > It gives the parts more time to swell. For this to be most effective, the > parts should really seize up at first. > > That being said, heat does seem to be effective as well in some cases. But > I would try that after the initial treatment has thoroughly dried. > > This type of treatment is somewhat hit or miss. It's not very controllable. > Sometimes it doesn't work as well as you would like, other times it works > all too well! But, it can make a non-functioning piano playable again with > very modest effort and damage to the clients checking account. > > Ryan > > On Sun, Jul 31, 2011 at 8:29 AM, David Weiss <davidweiss at embarqmail.com>wrote: > >> I'm curious as to preferred methods for water/alcohol treatment. What >> ratio of water to alcohol, best method of application, and air drying versus >> drying with a heat source?**** >> >> ** ** >> >> David Weiss**** >> >> ** ** >> >> *From:* pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] *On >> Behalf Of *Ryan Sowers >> *Sent:* Sunday, July 31, 2011 11:24 AM >> *To:* pianotech at ptg.org >> *Subject:* Re: [pianotech] Guess which pin...**** >> >> ** ** >> >> I always go for the water/alcohol fix first, as well. A couple of >> treatments may work better than one. >> >> Ryan**** >> >> On Sun, Jul 31, 2011 at 6:50 AM, Ron Nossaman <rnossaman at cox.net> wrote:* >> *** >> >> On 7/31/2011 7:25 AM, Tom Driscoll wrote:**** >> >> Rob, >> Many of he Baldwin acros of the 60's -70's have chronic tight centers . >> My first test is to depress the left pedal , release quickly and watch >> for slow hammer return. Jacks centers can also be tight .I use the age >> old alc-water shrink-sizing method and it seems to provide a permanent >> fix. Give it overnight and test. Some use a hair dryer to speed things >> up but I'd rather see what the center will do on it's own. I then shoot >> some protek figuring it can't hurt to slick the center up. >> I realize that not every piano will respond ( I.E. center pin plating >> problem on the Samicks) but with this Kimball I would give it a try. >> It's easy ,cheap and will do no harm AND it might solve the problem. >> Just my take, >> Best wishes,**** >> >> ** ** >> >> I agree. Given the quality and worth of the piano, this is a sane >> approach. Repinning the action is, I think, abusive to the owner if >> shrinking will get you there. And replacing parts (the action) in nominals >> like this is way way past cost prohibitive and far beyond sensible for any >> of my customers. I must need dumber richer customers. <G> >> >> Ron N >> >> **** >> >> >> >> >> -- >> Ryan Sowers, RPT >> Puget Sound Chapter >> Olympia, WA >> www.pianova.net**** >> > > > > -- > Ryan Sowers, RPT > Puget Sound Chapter > Olympia, WA > www.pianova.net > > > -- Ryan Sowers, RPT Puget Sound Chapter Olympia, WA www.pianova.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110731/f1a71831/attachment.htm>
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