<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"> <title></title> </head> <body text="#000000" bgcolor="#ffffff"> Barbara & Don, some more comments interposed.  Don wrote: <blockquote type="cite" cite="mid3.0.6.32.20041209234219.01248ba8@accesscomm.ca"> <pre wrap="">Hi Barbara, It won't blow up. However CA glue is already a "wetting agent"--and I think that acetone sinks into felt pretty well too--so I don't quite see the point in the alcohol. </pre> </blockquote> The only point I had in mind when I suggested this was that perhaps it would be an effective wetting agent and allow the mixture to better penetrate the bushing, possibly avoiding  the necessity of again pulling the pin.  As I indicated in an earlier post , at the time I did this, I went ahead and repinned, AGAIN, for third, or fourth time in some instances.  It may be that using an even thinner mixture, applied several times over ten or fifteen minutes might achieve the same result.  This was what I was aiming for originally, but I went ahead and removed the pin after trying a few using the 90/10 mix.  Any water in the alcohol would I think defeat its purpose, by inhibiting a full infiltration into the felt of the CA,  but I am going to try one tomorrow anyway, just to see.  <blockquote type="cite" cite="mid3.0.6.32.20041209234219.01248ba8@accesscomm.ca"> <pre wrap="">water in it--and water makes CA glue cure.</pre> </blockquote> It does, and, I  read, I think here or in the Journal that CA actually has some kind of inhibitor in it which  reduces its ability to take up moisture:  as this leaves the glue moisture is taken up, a reaction takes place and the material hardens.  Regards, Robin Hufford <blockquote type="cite" cite="mid3.0.6.32.20041209234219.01248ba8@accesscomm.ca"> <pre wrap=""> Water doesn't penetrate felt well at all--but alcohol does--and the two are "misseable" (i.e. one liter of water + one liter of alcohol = 1.98 liters of fluid). The reason we use alcohol with water for shrinking solution is because of the wetting agent properties of alcohol. If the flanges are too loose...then water in the mix should make them even looser--that is if it doesn't cause the CA glue to cure *extra fast*. At 10:11 PM 09/12/2004 -0600, you wrote: </pre> <blockquote type="cite"> <pre wrap="">Do you think if I did some tests on pieces of bushing cloth, I'd be able </pre> </blockquote> <pre wrap="">to tell </pre> <blockquote type="cite"> <pre wrap="">anything? I was thinking in particular about the 90/10 acetone/ CA mix </pre> </blockquote> <pre wrap="">and also </pre> <blockquote type="cite"> <pre wrap="">trying out some with a bit of methyl alcohol mixed in, too. Does anybody </pre> </blockquote> <pre wrap="">know if </pre> <blockquote type="cite"> <pre wrap="">I'll blow up or pass out or anything? (That last one is the important </pre> </blockquote> <pre wrap="">one, I'm </pre> <blockquote type="cite"> <pre wrap="">not a chemist.) </pre> </blockquote> <pre wrap=""> Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat <a class="moz-txt-link-freetext" href="mailto:pianotuna@accesscomm.ca">mailto:pianotuna@accesscomm.ca</a> <a class="moz-txt-link-freetext" href="http://us.geocities.com/drpt1948/">http://us.geocities.com/drpt1948/</a> 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner _______________________________________________ pianotech list info: <a class="moz-txt-link-freetext" href="https://www.moypiano.com/resources/#archives">https://www.moypiano.com/resources/#archives</a> </pre> </blockquote> </body> </html>