Darryl Keil Last Activity 2025-09-09 11:09 AM
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bill flusche

Posts: 2

Joined: 2007-09-18
Location: gainesville ,fl

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Subject : piano lid
Posted : 2007-09-19 7:18 AM
Post #34053
need to glue a grand piano lid that's split and then re-veneer the top and then the whole piano will be refinished --any good ideas on how to clamp such an odd shaped piece? the lid has an ogee all around, so the real question is how to veneer the flat without messing up the ogee. (tape or a resist?) will use a vacuum bag and probably unibond glue. any ideas are appreciated.
thanks
bill


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: piano lid
Posted : 2007-09-19 7:09 PM
Post #34054 - In reply to #34053
Bill,

If you know you've got the top good and flat with no surface fluctuations I would veneer it face down with a cover sheet between the veneer and the grooved platen. This way the ogee is protected and any glue squeeze out wont run down it.

If you have some slight waviness in the top then you would need to veneer face up with a thin caul, no more than 1/4. You could still overhang the thickness of your caul to protect the ogee but its not as good as face down.

Sincerely
Darryl Keil


 
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Bruce Berman

Posts: 20

Joined: 2005-06-01
Location: Pittsburgh, Pa., USA

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Subject : RE: piano lid
Posted : 2007-09-21 2:15 PM
Post #34057 - In reply to #34054
Bill, just an addition to Darrykl's comments. If you are veneering face up you will need prtotection for your Ogee. Tape it with a very high quality masking tape making sure you go past the edge of the top face. Then come back and cut the tape flush - you can even sand any bits of tape that are still showing above the edge to get a perfect line. This will save you a lot of trouble later on. I would even do this if the veneering was face down.

Bruce Berman
The Miracle Veneer Trimmer


 
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Don Stephan

Posts: 825

Joined: 2003-07-18
Location: Cincinnati, Ohio

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Subject : RE: piano lid
Posted : 2007-09-23 10:41 AM
Post #34059 - In reply to #34053
I'm trusting that the top is not solid wood - if it is, normal expansion and contraction of solid wood would quickly destroy the veneer.

I'm also wondering if both sides of the top would have to be veneered to equalize forces on the substrate and avoid cupping.

Are you asking how to clamp the top while gluing the split? One trick is to use hot melt glue to apply blocks to both the top and bottom surfaces on each side of the crack, and use clamps on these blocks to pull the split together while the glue cures. If you try this, I'd suggest great caution in removing the blocks - I've had the glue hold so well that parts of the table top came off with the blocks when I tried to break or split them off.


 
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bill flusche

Posts: 2

Joined: 2007-09-18
Location: gainesville ,fl

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Subject : RE: piano lid
Posted : 2007-09-27 6:25 AM
Post #34070 - In reply to #34059
Thank you all for your help. I just got back in town and will put these suggestions to work. thanks
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