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Oh....... Good , I always like to argue with you Joe
I think the thin flexible idea is ... well ....all wet Joe. If it isn't
then I guess all Kawai's & Yamahas sound bad cause they have probably 10 mils
of poly urethane over them or at least the ones I've stripped have. I
personally think with some of them it's not the thickness of the finish but too
thick of a board and boards with without the edges thinned or just too thick
aboard. That'll make a piano stingy alright. JMO
As for using Varnish, it's a lovely finish if your not making a living
but the wait time I'd go broke. Now lacquer is a fine product & well ....I
guess my boards will sound even better if I quit using it. hmmmm? Not
Frankly I see little wrong with stripping a board that's half dead & flat
anyway & the truth is if its' done right the stripper isn't on there very
long & good quick acetone cleanup evaporates quickly. A good sanding cleans up
most other residues & stains.
Then you can do it really right with a good sealer coat of good shellac
(which I known you have)Shellac which penetrates & gives a nice case
hardening of the wood & then procede with Varnish if you have lots of time to kill.
grin. Or spray on the right Nitro cellulose over the shellac. It can be built
up in two days max & rubbed or polished . Either way varnich or lacquer takes
time to cure really hard & when it does both have fine acoustic properties
IMH O All this is really subjective & fun
Dale Erwin
My reasoning, for this system, is that I want a THIN Flexible finish that
will be easy to clean and will endure. I have seen boards with TOO Thick a
finish, which, IMO, tended to "choke" the tone, if not completely Deaden it, as
in one case of Polyester!!!Yikes!!!
As for "Sealing" for better "stability", I don't think that is possible and
is not the major concern. TONE is THE major concern, IMHO. There are those
who like to put multiple coats of Lacquer on their boards. I have found that I
don't like the tone, compared to what I get out of my system.<G> And then
there are the "purists" that will only use Shellac. To them I say what ever
flips your Kilt up, but it is not a enduring as Varnish. The secondary concern is
to protect the wood from contaminants and to LOOK nice. The Varnish gives
Spruce a beautiful light golden glow, that makes me all warm and fuzzy!<G>
Finally, Do Not, Under Any Circumstances Strip the Board!!!!!!!!
(Scraping/Sanding only please.) Stripping tends to drive the olde finish/contaminants
into the wood pores! I further think that that sort of extremely caustic stuff,
deteriorates the wood itself! Just my opinion/experience.
Regards,
Joe Garrett, R.P.T.
Captain, Tool Police
Squares R I
Erwins Pianos Restorations
4721 Parker Rd.
Modesto, Ca 95357
209-577-8397
Rebuilt Steinway , Mason &Hamlin Sales
www.Erwinspiano.com
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