[CAUT] Rinsing lacquer from hammers

[Dale Erwin]

 Hey Fred
  I believe Jack has seen this in an electron microscope.  I will ask him if there is any picture avaialble, but anyway... Even if lac, or thinner do not cause the felt to swel,l it is still possible that the thinners/lac. do penetrate the fibers.  Don't think of hollow as a straw or tube but some kind of spongy type matrix. Oh how I love speculation!! SO exciting when I'm....wrong 
 

Dale S. Erwin
www.Erwinspiano.com

From: Fred Sturm <fssturm at unm.edu>
Subject: Re: [CAUT] Rinsing lacquer from hammers



On Feb 13, 2011, at 8:40 AM, Dale Erwin wrote:


   I'm curious. I learned from Jack Brand (during the Weickert felt trials) at Wurzen felt that wool fibers are hollow, which is why they can hold so much moisture. ie rugs, sweaters etc


  Do they swell with lacquer, or the various solvents associated with it? I don't think so. In any case, drenching hammers in lacquer thinner, acetone, or alcohol doesn't seem to make them expand, or leave them larger than before. Water does make them expand and they end up larger than before.
    So I don't think we know whether the solids in lacquer penetrate the wool fibers when we dope hammers. I have always pictured it as coating the fibers. And have wished that someone would do electron micrography on lacquered hammers so we could see.

 

Regards,
Fred Sturm
fssturm at unm.edu
http://www.youtube.com/fredsturm

 


=
 
=
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/caut.php/attachments/20110214/a4067089/attachment-0001.htm>