System Three Varnish

[gordon stelter]

Frankly, I think that the dude who wrote this blurb on
varnish for Wilson Selby and Associates is the same
cat who dreamed up "Mezzo-Thermoneal Stabilizer"! Why,
exactly, would a varnish be "too hard" for exterior
use on a home? Did he actuallly mean "interior", and
for "hardness" mean the "toughness", which makes spar
varnish less appealing, visually?  Interior varnishes
are "rubbing" varnishes, harder than spar varnish,
such as Pratt & Lambert's #38, considered the BEST
interior furniture varnish ( according to Fine
Woodworking ).
     But that was before Sherwin Williams bought it.
Its no longer amber.  Now its PURPLE!  Similarly,
after SW bought ML Campbell, many I know had trouble
with their nitrocellulose curing.
    Terry: Strictly for cosmetic reasons, I highly
discourage the idea of using spar varnish on a visible
board, instead of, say, NC lacquer.  The increased
drying time of varnish allows more dust specks to
settle in it, and as spar doesn't dry rubbable, the
little bumps can't be easily rubbed out. Use
traditional interior furniture rubbing varnish if you
must use varnish, or lacquer, 
     Thump

--- Farrell <mfarrel2@tampabay.rr.com> wrote:
> >  It is this 'hardness' which requires that
> re-varnishing of bright work on 
> > boats is needful every few years or so.........
> 
> Don't think so. Paint two identical boards with same
> varnish. Put one in sun for a year. Keep other in
> shade for 30 years. One year in sun will show
> deterioration. 30 years in shade will likely look
> like new.
> 
> Terry Farrell
>   
> ----- Original Message ----- 
> From: <JIMRPT@aol.com>
> To: <pianotech@ptg.org>
> Sent: Friday, February 28, 2003 3:19 PM
> Subject: Re: System Three Varnish
> 
> 
> > Del;
> >  Here is what Wilson Selby & Associates have to
> say about Spar varnish. (they 
> > are a major coatings formulation consultants)
> > 
> > <<"ABOUT SPAR VARNISH........ (strictly our
> opinion) 
> > Spar Varnish has been used for years to provide a
> super-hard, weather and 
> > water resistant coating for exterior wood.
> However, this extreme hardness is 
> > not suitable for most exterior wood surfaces on a
> home.">>
> >  Note the comment vis a vis 'hardness', i.e.,
> "super hard"...
> >  It is this 'hardness' which requires that
> re-varnishing of bright work on 
> > boats is needful every few years or so.........
> >  Of course this doesn't even adress the many
> boards out there which have 
> > their original shellac/varnish finishes,,huh? :-)
> > Jim Bryant (FL)
> > _______________________________________________
> > pianotech list info:
> https://www.moypiano.com/resources/#archives
> _______________________________________________
> pianotech list info:
https://www.moypiano.com/resources/#archives


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