[pianotech] Weickert Felt by Ronsen

[Tom Servinsky]

I have a set in a recording studio (Yamaha C7 F ) that I have been 
monitoring very closely. These were a set of the early prototype hammers, 
which were much too soft for any performance situations. I ended up juicing 
them at 10:1 throughout and ended up with a very pleasant tone. Lately the 
dynamics have been increasing, much to everyone's hopes and the feedback has 
been very positive.
Tom Servinsky
----- Original Message ----- 
From: "David Love" <davidlovepianos at comcast.net>
To: <pianotech at ptg.org>
Sent: Friday, November 20, 2009 9:57 AM
Subject: Re: [pianotech] Weickert Felt by Ronsen


> 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
>
>
>