CA gluing Grand pinblocks & Uprights My take on it

[David Smith]

Shelf life is a real issue with the CA's used in model building.  They need 
to be kept stored in a refrigerator to last for many months.  Othewise, I 
have experienced a drop off in properties.  I assume most CA glues have 
similar room temp shelf life problems. I have not yet used them for piano 
work.

Dave


>From: jolly roger <baldyam@sk.sympatico.ca>
>Reply-To: pianotech@ptg.org
>To: pianotech@ptg.org
>Subject: Re: CA gluing Grand pinblocks & Uprights My take on it
>Date: Tue, 30 Jul 2002 10:51:57 -0500
>
>
>Hi Ed,
>             There also seems to be quite a range of qualities with CA
>products, and I have a gut feel that shelf life may be an issue.
>
>I'm with you, re pin block repairs, it is far from temporary.  ( What ever
>that may mean?)      Repairs that I have I have done on S & S teflon
>bushings, and bridge pins also seem better than temporary.
>
>Common sense and careful application is the name of the game.
>
>Regards Roger
>
>At 11:09 AM 7/30/02 -0400, you wrote:
>> > Joe wrote:
>> >> On a final note, I personally do not like CA glue for anything other
>> >> than temporary repair, because I know that it will fail, eventually.
>>Newton asks:
>>
>> >Upon what data or experience do you base that statement?
>>
>>   I used a bottle of CA on several projects several years ago.  A plastic
>>clock on the wall, a wooden ruler, a pencil holder cup, etc.   About a 
>>year
>>ago, the clock fell off the wall. A week later, the handle came off the 
>>cup,
>>and about two or three weeks after that,  the ruler broke.
>>   I don't think CA is all that long term, but what I have seen in blocks 
>>is
>>great.  I also think that the increased torque in a pinblock comes from
>>increasing the surface area between the pin and the wood more than 
>>"swelling"
>>the wood.
>>Regards,
>>Ed Foote
>




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