Hi Ryan, Sure, that's why I posted the little follow-up. I've had long-term results with CA, however, I'm not willing to guarantee a pinblock treated with CA. If it fails in a year, so be it. If it's still going strong in 20 years, great. My point is that without a greater degree of predictability and certainty of outcome, I'm not comfortable calling it anything other than a band-aid (OK, maybe a butterfly, or a few stitches). I don't like the feel of CA'd pinblocks, and I wouldn't aim for that as a final result with any repinning job or pinblock replacement either. You can pull tuning pins and swab holes with epoxy or CA also. Or use pinblock plugs, or oversize pins, or......... But I feel that if I want a guaranteed result, I replace the pinblock. It will tune predictably and be stable (as much as the resident degree of climate control will allow). CA just doesn't offer a result that is consistent, predicable or reliably long-term and I suppose that's why I term it "band-aid." William R. Monroe On Tue, Aug 24, 2010 at 12:59 PM, Ryan Sowers <tunerryan at gmail.com> wrote: > I disagree. This is not really a band aid repair. I remember first hearing > about CA in pinbocks in the early 90's. Some of those pianos are still > holding up just fine. The trick is to get enough material as deep as > possible for best results. That's why I'm planning on using a heat lamp on > my next job. I've even contemplated drilling a small hole through each pin > bushing to facilitate penetration into the block. > > Done properly, I believe that this repair can be fairly permanent. CA glue > is pretty tough stuff. I doubt that it will break down significantly over > time. Its basically acrylic plastic, right? The treatment may outlast the > rest of the piano. > > Ryan > > On Tue, Aug 24, 2010 at 10:47 AM, William Monroe <bill at a440piano.net>wrote: > >> I should clarify. It's a band-aid repair, to be sure, but often a piano >> remains tunable for many, many years after, so long-term results are >> possible. >> >> WRM >> >> >> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100824/d005e1bb/attachment.htm>
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