<html> Les, Jim, list,    My dad started me on Garfields 30 years ago. In my dry climate, it actually works better than CA glue. A 50-50 mix with methanol or denatured alcohol, applied with two or three passes, using a complete 4oz hypo bottle per block has been quite successful. The instrument needs to remain horizontal for at least 24 hours, and wait two weeks before tuning. Many of the pianos I doped over twenty years ago are still pretty snug. In most cases, only one or two pins may need to be sized-up. That's 99%.  A thinner solution can be used when there's not good penetration, and a super-thin solution can even-out the feel of jumpy blocks. I have never had a block destroyed by the solution, although we due loose track of customers, or they trade-up, or whatever. At the plant we've got about a cord of old blocks. I've seen many that had been doped, and if they are de-laminating, I'm sure they would have done it without the solution anyway. Penetration does seem to stay near the top, but hey..... that's where the pin is loose, no?    I believe that history and climate are very major factors, and that techs from different areas will have varied success. If I were to advise the world on the use of CA glue, based totally on how it works at 17% RH, I'd say don't bother. But.... I know how to deal with it, so I'd say knock yourself out. One way or the other! <G> Regards, Guy Nichols, RPT At 11:34 AM 12/19/2005 -0700, you wrote: <blockquote type=cite class=cite cite>L= es, List, I don t know if this was mentioned but past Journal articles have shown pictures of pinblocks that were doped with different solutions (not CA glue) and it shows how the solutions= generally don t penetrate= through the pinblock and have a tendency= to destroy the upper one or two laminates. Sometimes within a couple years. The correct way (according to the article)= to use Garfield type products is to remove about every 15th pin and fill the holes= several times until it is saturated . Before CA glue I did this and it does work. Of course, it takes time, yo= u risk breaking strings, etc. etc. but IMO the superficial doping= of a pinblock is not good at all. In cases= where it did work probably= you could have spat on it and it would have done about the same.= (Just joking. No comments on the dangers= of saliva, please.) CA glue, as stated in several posts, is far= better, and doesn t seem to destroy the block over time. Jim Busby BYU _____________________________________________ From: caut-bounces@ptg.org [<a= href="mailto:caut-bounces@ptg.org">mailto:caut-bounces@ptg.org</a>]</font= > On Behalf Of <font= face="Tahoma" size=2>Leslie Bartlett Sent: Sunday, December 18, 2005 8:18 PM To: caut@ptg.org Subject: [CAUT] pin block restorer I went over 50 miles to this house to discover this= untuneable piano had about 5 really loose pins, and the rest were just= fine!  I neither took my hearing aids nor my Computer for TuneLab, so= ended up pretty much struggling with the tuning, but did no pinblock work= whatsoever.  But thanks for opinons. I'll certainly keep them for= future use, which WILL come about one of these days. thanks les bartlett << File: ATT116372.txt >> </b= lockquote></html>