CA glue and pinblock cracks

[Dean May]

No, no, no. Don't unstring. Just apply to the base of the pins like you
would the old fashioned pin dope. I like to use a hypo oiler and apply it in
2-3 passes. 

 

No reason to let it sit longer than needed. If it holds tension you're good.
The friction may continue to improve, but that won't make it more tunable.
If it holds, it holds. Don't need more friction than that to tune. I've
tuned them, come back in a week and found the pins tighter. But it wouldn't
have made for a better tuning to wait that week. I had plenty of friction
after 20-30 minutes.

 

Several on the list like to use lots of CA, like 4-8 oz. Some, like myself,
use 2 oz or less and have excellent results. There's only so much that is
going to go down the tuning pin hole. The rest is going to puddle on top of
the pin block or run off somewhere else (like onto the carpet). 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Annie Grieshop
Sent: Saturday, April 07, 2007 12:13 AM
To: Pianotech List
Subject: RE: CA glue and pinblock cracks

 

And you don't unstring it first, Dean?  Would it be even better to let it
sit for a day or two before the initial post-CA tuning?

 

Oooh, I can't wait to try this (and given my customer base, it won't be long
before I'll be presented with an opportunity <g>)!

 

Annie Grieshop

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org]On Behalf
Of Dean May
Sent: Friday, April 06, 2007 9:08 PM
To: 'Pianotech List'
Subject: RE: CA glue and pinblock cracks

It will work I can almost guarantee it. You really don't have anything to
lose except a little time. If it doesn't work, don't charge the customer. 

 

Tip the piano on its back, use 2 oz for the whole block, give a little extra
to the problem areas. Let it sit for 30 minutes. Lightly mist accelerator
over the pin field to cause any residual pools of CA to set up before
uprighting  piano. Set piano upright and tune. Maximum holding power may not
develop for a day or two. 

 

If you still have a problem pin or two, remove pin, squirt CA directly into
hole, reinsert pin. I've never not had this work (double negative used for
emphasis).

 

I charge $245 and warranty it for 8 years. If you can't get the pins to hold
for 8 years doing this, refund their money (something I've never had to do
yet).

 

 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802


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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Michelle Smith
Sent: Friday, April 06, 2007 9:29 PM
To: 'Pianotech List'
Subject: CA glue and pinblock cracks

 

Hi all.  Customer has a 109 year old Kimball upright.  (Why do I keep
working on these things??)  I'm pretty sure it has a crack along the bottom
row of tuning pins and am wondering if a CA treatment would fill in the
crack (and pinholes) enough to hold the pitch.  The customer understands
that a restringing/new pinblock is what's really needed (or a bonfire).

 

Thanks for your help!

 

Michelle Smith

Smith Piano Service

Bastrop, Texas

(512) 466-0238

michelle at smithpianoservice.com

 

 

 

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