<html> <body> Mr. Best, Ultra thin CA glue wicks into wood like water.  With adequate humidity it sets up firm.  Kind of like a wood restore but quite brittle.  I find that CA helps on pianos that have gone spongy with pin-tite but that the repair can be temporary if not enough CA is wicked into the wood.  Obviously this is an attempt to retrieve a piano that you should not make any guarantees on in such a case.  In any case, make multiple passes until it doesn't soak in.  One small bottle--1.5oz--is usually adequate.  In a grand piano remove the action and tape foil up to the bottom of the pinblock to contain any glue that might leak through and leave it there for at least 12 hours especially in dry climates.  Uprights can be treated upright with a hypodermic syringe but I believe a better result is obtained with less risk of wandering glue if the piano is tilted.  The glue will make paper towels and felt smoke when it reacts. Most of the time treatment does work well.  I have treated a piano where it had obviously been treated with something else and it didn't make enough difference.  Hence the "warranty" disclaimer.  Essentially you are just buying the customer time, sometimes years of it, to choose the replacement piano or rebuild. As to repinning, I have drilled CA treated wood for other applications and prefer drilling it over spongy wood any day.  Rebuilders I've discussed this with note that occasionally the block will stick to the plate but that the glue is brittle allowing removal with a prybar and a couple "love" taps (with a large hammer). Good luck, Andrew Anderson At 10:27 AM 6/3/2008, you wrote: <blockquote type=cite class=cite cite="">Thank you to everyone for sharing your experience.  My concern is not so much whether it will work but rather whether will it destroy a good pin block.  I've seen too many pin blocks ruined by Pin Tite.  I guess my question is, if it doesn't work can I still go ahead and re-pin?  Jonathan Best <a href="mailto:jb@bubblemusic.com">jb@bubblemusic.com</a> 928-830-4887 <a href="http://www.bubblemusic.com/" eudora="autourl"> www.bubblemusic.com</a> On Jun 3, 2008, at 7:23 AM, Matthew Todd wrote: <blockquote type=cite class=cite cite="">What consistency of CA do we find works the best? Dean May <<a href="mailto:deanmay@pianorebuilders.com"> deanmay@pianorebuilders.com</a>> wrote: <dl> <dd>I've never used CA glue on tuning pinns and wouldn't recoomend doing so.. I know a technician who has with disasterous results. <dd>  <dd>Hi Alicia <dd>  <dd>You should expand your sample. I bet for every tech you could come up with that had disastrous results there are several dozen with excellent results. My personal results with CA have been excellent. <dd>  <dd>On the other hand, my personal results with Pin Tite have been hugely disappointing. I found it to only work in 50% of the cases and in many of those cases only for 2-4 years. You also find the old grands with severely stained pin fields showing many applications of dope over the years. Those pianos typically have very spongy pins and will respond very poorly to pin tite treatment. They will, however, respond with excellent results to CA treatment. <dd>  <dd>I suggest you try it! You’ll like it! J <dd>  <dd>2 oz apply with hypo oiler. <dd>Dean <dd>Dean May             cell 812.239.3359 <dd>PianoRebuilders.com   812.235.5272 <dd>Terre Haute IN  47802 <dd>  <hr> <div align="center"></div> <dd>From: pianotech-bounces@ptg.org [<a href="mailto:pianotech-bounces@ptg.org"> mailto:pianotech-bounces@ptg.org</a>] On Behalf Of A E <dd>Sent: Monday, June 02, 2008 10:12 PM <dd>To: Pianotech List <dd>Subject: RE: CA Glue for pin blocks <dd>  <dd>Johnathan, <dd>  <dd>Not you're not repeating yourself... <dd>I've never used CA glue on tuning pinns and wouldn't recoomend doing so.. I know a technician who has with disasterous results. I use "Pin Tite" myself to chemically treat pinblocks, and I must say it does wonders. It's about $25-30 a bottle of 8oz and lasts for a few pianos. I have crossed a Wurlitzer recently the owner told me that a technician used CA on it a bit while ago, after trying to set the temperament I fully refused to tune the piano, pins were jumping and every blow i gave a key, pin slipped... <dd>  <dd>  <dd>Alicia <dd>  <hr> <div align="center"></div> <dd>To: <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a> <dd>From: <a href="mailto:jb@bubblemusic.com">jb@bubblemusic.com</a> <dd>Subject: CA Glue for pin blocks <dd>Date: Mon, 2 Jun 2008 17:04:16 -0700 <dd>I'm new to this list and I'm not sure if I sent this before I was actually signed up.  So I hope I'm not repeating myself.  Has anybody had any experience using CA glue on pin blocks and subsequently restringing?  How do the pins feel after a treatment?  Do they jump? How long does it last? And if they do start losing their hold after a few years, or if the job turns out to be one of the 10% that doesn't work, can one still go back to simply restringing? <dd>  <dd>Thanks <dd>  <dd>Jonathan Best <dd>Prescott, AZ <dd>Jonathan Best <dd><a href="mailto:jb@bubblemusic.com">jb@bubblemusic.com</a> <dd>928-830-4887 <dd><a href="http://www.bubblemusic.com/" eudora="autourl"> www.bubblemusic.com</a> <dd>  <dd>  <dd>  <hr> <div align="center"></div> <dd>Get 5GB of online storage for free! <a href="http://clk.atdmt.com/UKM/go/msnnkmgl0010000005ukm/direct/01/"> Get it Now!</a> </dl> </blockquote></blockquote></body> </html>