[pianotech] treating bridges with CA

David Ilvedson ilvey at sbcglobal.net
Tue Dec 1 11:48:27 MST 2009


And you have a thin hammer hardening solution at the same time...I will try the cellulose lacquer...

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Richard Brekne" <ricb at pianostemmer.no>
To: pianotech at ptg.org
Received: 12/1/2009 5:47:22 AM
Subject: Re: [pianotech] treating bridges with CA


>Hi Barbara

>Just thought I'd throw my two bits in here.  Personally I never even 
>think about trying to apply CA or Epoxy to the bridge without removing 
>the strings. It just ends up being less effective then I want (and know 
>it can be) and too much of a hassle to avoid getting either onto the 
>strings.

>I DO quite often use Cellulose lacquer  in cases where an improvement is 
>needed but the customer wont pay for the extra time it takes to remove 
>strings (as I go with CA, complete sections with epoxy).  I thin it down 
>to about 8:1 from the can, use a needle bottle and soak it in as much as 
>the bridge will take. Its also very easy to cover the bridge notch with 
>if you need... and has a nice tendency to wick in under the string 
>filling bridge indentations without getting on the string much at all.. 
>It does get of course on the underside of the strings back of the bridge 
>pin... but this is not a problem.  Any lacquer that DOES get on the 
>strings forward of the bridge pins is very easily removed either while 
>still wet or while dry.

>Frankly... I'm doing more and more of this as I find it solves very much 
>of the exact same problems CA is used for here... is much much easier to 
>deal with in general and I dont have to worry nearly so much about the 
>fumes..... tho to be sure Cellulose and thinner is not exactly the most 
>healthy thing to breath in deeply either.

>Try it... you may be surprised.  I carry a bottle with me all the time 
>now... helps clean up falseness of a variety of types.  Really handy for 
>that wavering undefined wangishness found often in the 1' area  (octave 5)

>Cheers
>RicB


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