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Yamaha resin / composite material body, crack repair
http://luthiersforum.com/forum/viewtopic.php?f=10137&t=49053
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Author:  colorful [ Sat Feb 25, 2017 11:10 am ]
Post subject:  Yamaha resin / composite material body, crack repair

Hi everyone!

I like your forum and I read it constantly but this is my first attempt to post something.

I apologize for my english but it's not my mother tongue.

Now that's the topic:

I am restoring an old (1995 or 2005) Yamaha apxt1n and I'm searching for some suggestions, maybe some of You can help me in my mission.

There is a crack on the body starting from the strap knob on the bottom of the body. It does not affect the playability or the overall state but I want to repair it avoiding future problems and, first of all, unnoticeable.

I have some questions for You:

1) Does anyone know which kind of material the body is made of? (Inside is wood, outside it seems some kind of resin/composite)

2) Can someone please advise me how can it could be repaired? (Maybe some kind of filler / compound resin)

3) Can someone give me some tips on how to proceed?

Thank you so much for your support and patience, I think this could be a good repair topic for anyone searching for the internet.

Attachment:
1 IMG_20170223_200221.jpg

Attachment:
2 IMG_20170223_200228.jpg

Author:  unkabob [ Sat Apr 15, 2017 11:32 am ]
Post subject:  Re: Yamaha resin / composite material body, crack repair

That looks more like a scratch than a crack to me. Your biggest problem will be to match the colour of the original.

Bob

Author:  Chris Pile [ Sat Apr 15, 2017 4:12 pm ]
Post subject:  Re: Yamaha resin / composite material body, crack repair

I would wick some black cyanoacrylate glue in the crack and call it good.

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