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cosmetic crack filling repairs?

 
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Itamar Foguel
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PostPosted: 2013-03-17, 15:20    Post subject: cosmetic crack filling repairs? Reply with quote

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Hello everyone, im doing shackuhachi repairs for a while now, while most flutes only need strong bindings for cracks, some (like my main personal flute) have a crack that is closed by the bindings in the bore, but on the surface of the bamboo its usually about 1 mm wide.

i tried all kind of fillers while looking for something that can close that big gap without doing damage to the flute. last one i used was carpenter glue mixed with fine bamboo dust. it held fine for a while but after few climate changes the crack opened a bit the the filler loosened and begun to come out...

so im looking for a material that will be stable yet flexible enough to be able to take the crack's closing and opening throughout the year.
Ideas?

Itamar
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Jon Kypros
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PostPosted: 2013-04-30, 01:01    Post subject: cosmetic crack filling repairs? Reply with quote

Industrial strength epoxy has worked for me. You can fill it with bamboo powder etc. but too much can decrease adhesion. Avoid using wood glue to do any filling as it's meant to bond things pressed tightly together. Good luck!
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PostPosted: Today at 20:46    Post subject: cosmetic crack filling repairs?

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