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  1. #1
    Join Date
    Jun 2015
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    Brisbane
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    Default Veneer glue line problem

    I am having my first attempt at veneering. I am using baltic birch plywood with a solid maple edge and then veneering over the ply and edge with curly maple veneer. I am using Heatlock iron on veneer glue which dries a dark brown colour.

    The issue I have had is that the glue line is visible on the edge of the test piece.

    Glue Line.jpgOption 1.JPG

    For this light coloured timber should I be putting the veneer on the ply first, then trimming the edge of veneer/ply and then attaching the solid wood edging last? The edging would then need to be planed down to the height of the veneer.

    Any ideas on how to get rid of the visible glue line would be most welcome! Is the image below the best way to attach solid edging?

    Option 2.JPG

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  3. #2
    Join Date
    Sep 2013
    Location
    Cherrybrook,NSW
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    344

    Default

    you could use pva which dries clear to attach the veneer. Alternatively you could veneer the ply first then cut the board to your required size and then dress the solid trim to your required thickness and then glue that on.

  4. #3
    Join Date
    Jun 2015
    Location
    Brisbane
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    Default

    Thanks Wood Collector. I had wondered about attaching the edging last.

    The other thought I had was maybe I applied the Heatlock glue too thick and made it more visible than it usually is. It probably would not be very noticeable on a dark timber, but the maple is very light coloured...

  5. #4
    Join Date
    Jun 2015
    Location
    Brisbane
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    65

    Default

    One question about applying the solid edging after the veneered panel is cut to size;-

    Do I attach the edge strip so that it is slightly proud of the veneered surface and then plane it down to be flush with the veneer, or do I try and glue it on already the correct thickness to match the panel?

    Cheers

    Mike

  6. #5
    Join Date
    Mar 2004
    Location
    Brisbane (western suburbs)
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    12,093

    Default

    Stanger, I would definitely veneer the panel first, trim, then apply any edging. It's too risky trying to lay the large area last. Even if you fit the veneer with deadly accuracy, there is always a risk of shrinkage when glue dries (or as it cools down, in your case), and it only takes a minuscule gap to be visible, as you've amply demonstrated.

    A less-satisfactory approach would be to fit the edging, flush that with the ground, then lay the veneer out to the edge of the edging. That is easier to do, but you then have exposed & unprotected edges of the top veneer. Edging gives the job a neat, framed look, but its primary purpose is to protect those somewhat fragile veneer edges (e.g. cock-beading on veneered drawer fronts).

    Cheers,
    IW

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