I've been using pin driving fluid for some time now and while I can't say exactly what it does I do notice that the torque seems to change less over time than when I haven't used it. That may be because the torque levels start out a bit lower. This study is very interesting in this respect. I do notice that with the PDF that the effort needed to drive the pin into the block is considerably less and I wonder if the lubricity that it provides while driving in the pin doesn't minimize the stress and damage caused by that process in and of itself. If nothing else it makes it a lot easier to drive the pin. David Love www.davidlovepianos.com Dean May wrote: > Priceless info. Especially the varnish vs dry. Can you give us a protocol on > that? > > What kind of varnish? Will any ole brand from Menard's do? > Do you just use a Q-Tip and swab the hole immediately before inserting the > pin?
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