Over the years I have used Titebond to reglue broken keys but I often reinforced with a material known as "fish paper", which is a very tough fiber paper used to insulate transformer cores. Past sources of this were permeable enough to bond well with Titebond and it is thin enough not to interfere with other keys.
Recent supplies of fishpaper tend to be less permeable and don't bond as well. Kraft paper (grocery bags) is not as tough. There is a Japanese fiber paper known as kozo paper that might be as strong and would certainly take glue well, but I haven't yet experimented with it.
I found a French cotton thread at a store that I was unable to break without cutting my hand; almost as strong as dacron. It would seem that long fiber paper made from strong cotton could be as tough as any other.
It might be worthwhile to investigate kozo paper for key reinforcements.
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Blaine Hebert RPT
Duarte CA
(626) 795-5170
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Original Message:
Sent: 07-08-2022 16:56
From: Timothy Edwards
Subject: broken key repair
Been a long time since I've done one of these. Is splinting necessary? Very tight key spacing. Bad break with very thin wood to work with.
Carpenter's wood glue still the way to go? Concerned about it getting into the balance hole. No key buttons on this (Samick) key.
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Timothy Edwards
Beckley WV
(740) 517-7636
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