[pianotech] Weickert Felt by Ronsen

[David Love]

Straight acetone works also as a solvent for lacquer.  BTW my own solution
for hardening these hammers is 10:1 through the tenor and bass and about 7:1
in the treble.  The last set I got definitely needed hardening but was
produced, apparently, at a time when the sets were coming out too soft.
Haven't seen a recent set.  I think 4:1 is too strong especially since
lacquer continues to harden over time.  Best to wait to apply a 2nd coat for
at least a couple of weeks if possible.  Of course, it also depends on the
solids content of your lacquer.  I don't care for plastic as a hardening
agent either.  For some reason it just produces what seems to be an
inflexible hammer and a type of hardness that I don't like.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Al Guecia/AlliedPianoCraft
Sent: Friday, November 20, 2009 4:22 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Weickert Felt by ROnsen

I don't eat it, I just apply it to the hammers <G>

Not nearly as bad for you as the CA glue we're using. MEK is the most used 
clean up product in paint chemical labs. I know a few chemists who used it 
most of their lives and lived to be over 80 yo with no harmful effects that 
I know of. Of course "That I know of" being the operative words here.

Al