<HTML style="FONT-FAMILY: MS Sans Serif; FONT-SIZE: x-small"><HEAD> <META name=GENERATOR content="MSHTML 8.00.6001.19258"></HEAD> <BODY style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"> <DIV> <DIV>John,</DIV> <DIV>That is precisely what you DO NOT want to use. It has all of the extra crap in it that will cause problems.</DIV> <DIV>However, I do recognize the "term".<G> I use the very best Spar Varnish, I can find, for the finish on Soundboards. But, that is a whole new subject, that I can pontificate about, ad nauseum.<G></DIV> <DIV>Joe</DIV> <DIV> </DIV> <DIV></DIV></DIV> <DIV> </DIV> <BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px"> <DIV style="FONT: 10pt Arial">----- Original Message ----- </DIV> <DIV style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A title=jrpiano@bellaliant.net href="mailto:jrpiano@bellaliant.net">John Ross</A> </DIV> <DIV style="FONT: 10pt arial"><B>To: </B><A title=joegarrett@earthlink.net href="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</A>;<A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A></DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> 7/15/2012 2:39:59 PM </DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [pianotech] Restringing Liquid - Should Be Pindriving Fluid<G></DIV> <DIV><BR></DIV><FONT size=2>Does Spar Varnish ring a bell with anyone? <DIV>John Ross,</DIV> <DIV>Windsor, Nova Scotia<BR> <DIV> <DIV>On 15-07-2012, at 5:54 PM, Joseph Garrett wrote:</DIV><BR class=Apple-interchange-newline> <BLOCKQUOTE type="cite"> <DIV>I remember reading on pianotech many moons ago, about a liquid Techs <BR>use when restringing. It make it easier to knock the pins in but then it <BR>sets increasing the torque. As the old search is no longer there and <BR>I can't get my head round the new system. Anyone on here know what it <BR>is called and what is in it<BR><BR>Thanks<BR><BR>Barrie,<BR>Essentially, pin driving fluid is nothing more than the base substance for<BR>Varnish, only without all the extra things that make it set up and be a<BR>specific type of varnish. A lot of those things are called "driers". Some<BR>of the added things work against what we want it to do, in this<BR>application. Our goal is to make the tuning pin go into the undersized hole<BR>with the least amount of trauma to the wood. Once the pin is in the wood,<BR>it needs to provide a smooth friction interface between the tuning pin and<BR>the wood. Or to put it another way, to provide a controllable, (if that is<BR>really possible<G>), friction in regards to consistantly drilled holes in<BR>the pinblock material. What we don't want is "poppy" tuning pins. Another<BR>thing that the pin driving fluid does, is to seal the wood, so that it is<BR>less reactive to humidity changes. If regular Varnish is used, (with all<BR>it's extra additives), It's been my experience that the end result will be<BR>inconsistant torque and "poppy" pins. <BR>I used to get my pin driving fluid from Rhodda Paints. They no longer make<BR>Varnish, so they no longer have that particular base in stock. I still have<BR>some. It's almost20 years old. I am noticing a change in its composition<BR>and ability to do what I want it to. I suspect when it goes South, I'll<BR>simply go to the drilling system that Nossaman uses. (with perhaps<BR>something to swab the holes with, which I have not clue what, at this<BR>point.<G>) There other paint manufacturers that still make Varnish. You'll<BR>need to, directly,  contact their Laboratory, to get the base substance.<BR>One of those manufacturers is Miller Paints. I'm sure there are others.<BR>Hope that helps.<BR>Joe<BR><BR><BR>Joe Garrett, R.P.T.<BR>Captain of the Tool Police<BR>Squares R I<BR><BR></DIV></BLOCKQUOTE></DIV><BR></DIV></FONT></BLOCKQUOTE></BODY></HTML>