Glue for laminated rib construction

[Farrell]

Even clamping pressure would concern me also. I not suggesting that you can't successfully use Bolduc glue for a pinblock. For building pinblocks, because of the clamping issue, I use either epoxy or 2-part urea-formaldehyde (UF) adhesive. The UF is water cleanup. It cures rock hard and can fill any size gap. No actual clamping pressure is required (just like epoxy) - you really only clamp to position things and so that you don't have more glue than wood.

The UF adhesive I use is Unibond 800  http://www.vacupress.com/veneerglue.htm  Very easy to use.

You can also use the UF for ribs - although it leave a yellow glue line. Doesn't bother me, but it is yellow.

I've also used Bolduc and Titebond Extend for laminating ribs. Both work well. I have had a few slabs of ribs change curvature while the wood MC equilibrates with the shop. No real big deal, but if you use these water-based glues I simply suggest waiting a week or two before using them - recheck the radius to be sure of what you have. The UF avoids this concern (real or imagined).

Terry Farrell
  ----- Original Message ----- 
  I've used the Bolduc glue for pinblock lamination for several years when I'm oversizing them or building up multi-level blocks. The only issue for me is even clamping pressure and the size of the panels that I've been working with since I don't have a full soundboard press system (still buying them from Andre with nary a complaint other than I ache to be making them myself :-). I don't see why it wouldn't work with rib stock laminates as well. As I recall, Andre told me several years ago when I was interviewing him for the Journal that he uses his own glue for the pinblocks he makes as well. You might ask him.

  Paul





  -----Original Message-----

    Belly heads
    I've been gluing up my own laminated rib stock & my pinblocks.  I  won't use epoxy because it too is toxic to my body & expensive.  I'm open for suggestions.  
     I need to glue up a bunch of ribs  tomorrow.  I like th Bolduc for my pinblocks & bridge cap applications because it doesn't clog drill bits or have adverse affects on tuning torque.  I believe Andre usu to glue up his own blocks & panels.
    Any help?
    Thanks
    Dale
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