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Subject |
GM
Justice Registered
User (3/7/01 3:32:15 pm) Reply |
Revarnishing
I recently bought a used cello (its
about 20 years old now) which is a bit banged up and needs some
minor repairs. It plays well, but one of the problems with it is the
varnish. The instrument has many small horizontal cracks running
through it, and in some places along the edges its chipped
away.
My question is: should I get the cello revarnished? How
expensive is it? And what will revarnishing do to the sound quality
of the instrument?
Thanx
Brian
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Len
Thompson Registered User (3/7/01 4:21:11 pm) Reply |
Re:
Revarnishing
Those cracks are what I have always
called crazing. Most likely caused by a very sudden temp. change
that caused the wood to expand faster than the finish, thereby
cracking the finish. If the sound is good, you might want to just
leave it as is, and touch-up only the damage at the edges. A
refinishing will fix it totally, but I imagine the cost of one done
properly will be quite high. I would guess the cost would be
$1500.+, but not sure. To prevent this from happening again I would
suggest the following. When you take your cello outside after
putting it in it's case, and after your journey, bring it back
inside, let it sit in the case unopened for awhile (depending on how
cold it was outside), then when it has had some time to acclimate,
loosen the lid of the case without opening it, and slowly fan a
little air in at a time. This should prevent temp shock! All the
best to you!
Len
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drcello Registered User (3/8/01 7:35:40 am) Reply | Edit
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revarnishing
I confess, I revarnished my cello.
My daughter put a big deep scratch across the front of it, so I
stripped it, sanded out the scratch, and revarnished it. I used
Homer Formby's finish remover with some steel wool. When I had it
completely clean I stained it, and gave it seven coats of bare hand
applied tung oil (no brush marks). Looks pretty good, and had no
effect on the sound.
PS: DON'T TRY THIS UNLESS YOUR CELLO IS
NOT WORTH MUCH ANYWAY! If it is a valuable instrument, just leave it
alone, or you will diminish it's resale value.
Marshall C. St. John drcello@vei.net Cello Heaven
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Br
Martin Registered
User (3/8/01 2:38:01 pm) Reply |
Re:
revarnishing
I advise you to take the cello to an
expert. It might be possible to "rub out" the imperfections and
touch up the places where the varnish is missing, but this takes a
real expert. It would be a lot less than revarnishing which should
almost never be done, since it generally devalues the instrument. If
it's a cheap cello, then it probably doesn't matter, but I still
wouldn't use commercial finishes most of them are terrible for
instrument sound and looks.
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Dick500 Registered User (3/9/01 11:32:11 am) Reply |
Re:
Revarnishing
The varnish is to be considered an
integral part of the instrument and contributes in no small part to
its value. There is a world of difference between revarnishing and
judicious touch-up. "Homer Formby"-ing can drop the value of an
instrument to considerably less than half of its former value. True
also with furniture as all of you who watch Antiques Road Show
regularly will remember.
Crackle in the varnish shouldn't
have much impact on an instrument's value. Edge chips can easily be
retouched by a good repair person. The same repair person should
also be able to determine if a bit of polishing done by the shop
would reduce the visual impact of the crackle if it really bothers
you.
Also, Homer Formby on a cello wouldn't possibly sound as
good as appropriate varnish put there bu the maker.
That
said, if the cello is already either an ash tray or a canoe, or even
a vacuum cleaner, however, you don't have much to lose I guess. Just
make sure that the stuff you would use is actually varnish which
carries the pigments above the wood and not something else which
would actually stain the wood. Once the wood is stained, and the
cello permanently looks like a fugitive from an early-sixties
basement rec room, and is no longer of any perceivable value, you
are, as the saying goes, out of luck.
Dick
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Todd
French  Moderator (3/9/01 1:21:58 pm) Reply
 |
Re:
Revarnishing
Dick is exactly right - I would only
expand on his deterrance from staining in pointing out that many
(most) stains actually weaken the cellular structure of spruce and
can greatly increase the chance of widespread cracking. It's best to
stick with varnishing or some other substance that is applied on TOP
of the wood, not into it.
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