Lacquer Thinner

[Joseph Garrett]

Horace,
 Then why the hell does the really good Lacquer Thinner work better IN
APPLICATION? Hmmmmmm????!! Because it gets the lacquer softer faster and
flushes FASTER! Sheesh!

Joseph Garrett, R.P.T.
Captain, Tool Police
Squares R I


> [Original Message]
> From: Horace Greeley <hgreeley at stanford.edu>
> To: <joegarrett at earthlink.net>; Pianotech List <pianotech at ptg.org>
> Date: 11/29/2006 10:20:28 PM
> Subject: Re: Lacquer Thinner
>
>
> Hi, Joe,
>
> At 08:28 PM 11/29/2006, you wrote:
>
> >I think I didn't 'splain quite adequately. When I use it in my hammer
dope
> >it flashes faster, for quicker results. When soaking lacquer out of
> >hammers, this stuff will attack the lacquer quicker, i.e. soften it. And
> >when it's doing that job, the flashing issue doesn't seem to matter as it
> >has softened that junk and flushed it into the bottom of the hammer where
> >it belongs. The short story is: it works far better than the tried and
true
> >methods with acetone and regular lacquer thinner, IMO.
>
> Understood.
>
> I simply disagree that a lower flash point is what is needed for this 
> particular application.  Hammers that are already loaded with lacquer 
> do not have any place for it to run.  It needs to be removed.  In 
> order to do that, it needs to remain in suspension.
>
>  From what Alan explained, the probable/possible cause for the 
> hammers being overloaded is that someone mis-used a technique for 
> setting up hammers on Ds and Bs that was used by the C&A department 
> for a couple of decades.  In _that_ setting, the teaching of the 
> period was to load the hammers with 4:1 (or even 3:1) lacquer:thinner 
> applied to the sides of the hammers (after initial shaping) with the 
> stack off the keyframe and standing on either end so that both sides 
> of the hammers were flooded.  When that is done, the entirety of the 
> hammer is (hopefully) equally saturated.  Thus, the need to get it 
> back into suspension and flushed out.  Attacking the lacquer more 
> quickly is all well, good and very positive, IFF at the same time, 
> the hardeners then remain in solution long enough to be forced out of 
> the hammer.  My consistent experience is that, in this kind of 
> scenario, a lower flash point, however good it is for many other 
> applications, simply gets in the way.
>
> Best.
>
> Horace
>
>
>
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