Try contacting the folks at Allied Piano- Ruth Ziener is a polyester expert however she is not doing much in the way of polyester training. Al Guercia in North Carolina knows polyester and I have had instruction from him although I do very little work with it today. If there is a crack that goes through the wood substrate all the way to the inner rim thats big time bad but I think you have a finish failure likely induced by poor storage or exposure from cold to hot too quickly. Don't forget that a piano has about 70% wood content and it expands and contracts. If a piano is sitting in the hot sun coupled with high humidity some finishes will soften. Likewise when finishing you need to be aware of both relative humidity and temperature otherwise the finish will be sticky and may never cure properly.
the thickness of polyester as well as the process has changed so repairs are difficult and very tricky. If there is no structural damage to the piano it is what it is. many people want a tax deduction for a donation but this type of damage reduces the value. It would cost some $$$$ to fix . In a school setting the piano is likely to suffer all sorts of finish and cosmetic damage. I had a school contract and a really nice Baldwin grand with natural wood finish was donated. Sometime shortly after it was there an aspiring drummer used the cheek blocks as a snare drum....
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James Kelly
Owner- Fur Elise Piano Service
Pawleys Island SC
843-325-4357
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Original Message:
Sent: 11-06-2021 12:39
From: Jon Page
Subject: What could cause cracks like this?
The cracks will seriously affect the value of the piano if they are looking for a tax deduction.
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Regards,
Jon Page
mailto:jonpage@comcast.net
http://www.pianocapecod.com
Original Message:
Sent: 11-06-2021 12:02
From: Geoff Sykes
Subject: What could cause cracks like this?
James --
The lid and legs look fine. No bent or damaged hinges. The only weird thing was that the rubber buttons that cushion the lid around the frame appear to have been slightly age crushed, but a long time ago. Now they are hard as rock. Mostly I'm used to seeing them turn to goo.
I was going to guess that the piano had been in seriously environmentally uncontrolled storage for a very long time and it happened there. But if that were the case I would have expected to see action damage as well. except for the case finish cracks the rest of the piano appears mostly OK. No critter damage, either. I just wanted to get some thoughts on what may have happened and what I may expect as this piano is once again being played.
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Geoff Sykes, RPT
Los Angeles CA
Original Message:
Sent: 11-05-2021 22:01
From: James Kelly
Subject: What could cause cracks like this?
I have seen cold cracks in polyester finishes and on a grand that had been coated with what looked to be multiple layers of bar epoxy. The piano had been refinished in Italy and all of the paperwork was in Italian and hard to decipher. The owner was a retired German physicist who wanted me to fix it but I had no idea what it was and referred him to a refinisher. The piano may have been dropped, damaged in transport, exposed to some extreme temperatures and warmed up too soon. I would check with Allied Piano and also with YC. Is the lid cracked or any issues with the legs ?
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James Kelly
Owner- Fur Elise Piano Service
Pawleys Island SC
843-325-4357
Original Message:
Sent: 11-05-2021 20:59
From: Geoff Sykes
Subject: What could cause cracks like this?
Young Chang G-185 from around 1987 as far as I could find out. Donated to a school I service. Nobody is admitting to knowing where it came from or history. Looks like it's seen better days but I'm worried about cracks in the rim. At first I thought the piano had been rolled across something but then I looked harder, and while there are scratches that follow the cracks, what I'm seeing are definitely cracks. They run horizontally entirely around the piano and look like they go clear through the finish down to the wood. May even be following wood joints in the rim. Any idea what kind of environment or accident could cause this kind of damage? And what it may mean?
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Geoff Sykes, RPT
Los Angeles CA
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