Glue cleanup on Ribs

[Farrell]

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I regret I don't have any good techniques to offer, but I sure am =
interested in hearing what others have to say about this topic! I also =
have a few questions.

I like your approach of putting one coat of finish on the panel and ribs =
before glue-up. I should think that would go a long way in keeping =
things clean. You mentioned being unhappy with minor damage to the panel =
after cleaning up squeeze-out with a sharp chisel. Perhaps a sharp =
chisel is overkill in this situation? Maybe a scraper with a good =
right-angled corner - or even just a putty knife with a good =
right-angled corner - might scratch the finish a tad (but who cares at =
this point) but won't damage wood.

Big question: How do you get the ribs (curved, I assume?) snug enough to =
the panel so the finish doesn't get between the rib and panel - or do =
you not have the ribs attached to the panel when spraying on this first =
coat of finish? You state that you tape on the panel where the rib will =
be glued - how do you get the tape the exact width of the rib so that =
you don't end up with a quarter-inch of bare panel, thus defeating the =
effort to get a protective coat of finish on the panel at the rib edge? =
I can easily imagine attaching the rib and cutting tape off with an =
exacto-type knife - but I presume that will create its own damage......

Thanks for sharing.

Terry Farrell
  ----- Original Message -----=20
  From: Erwinspiano@aol.com=20
  To: pianotech@ptg.org=20
  Sent: Saturday, September 20, 2003 1:00 AM
  Subject: Glue cleanup on Ribs


    For those of you who are pressing your own soundboards I'd like to =
compare notes as to how you all go about cleaning up the glue squeeze at =
the glue joints. I've done it two ways.
      I've  used a go- bar deck and currently a fire hose neumatic =
press. Cleanup with a go-bar deck as you go is easy because of access =
but with a pneum. press the 2 by 6s are in the way. It's possible just =
awkward and have done it alot.
      I've typically taped off the rim and rib glue jointson the bottom =
of the board, pinned the ribs to the board, then I tape over the rib =
ends before spraying on a coat of shellac. I find that this makes glue =
cleanup easier and resist moisture absorption I've usually have used =
cold hide glue and tried to limit the glue squezze out. Then I wipe it =
up/off with damp/dry paper towells.
    I recently used tight bond 2 to glue up ribs on a S&S B.  I waited =
till the glue squeeze beads jelled. After about 4 hr.s a sharp chisel =
was used to cleanup the excess(which was like strings of rubber) but I =
was un happy with the minor damage to the panel. A final sanding and one =
more coat of shellac is applied before final finish but.....
      The upside to hide glue is ease of cleanup. The down side is using =
some moisture in cleanup as  the board is ribbed which can be moderated =
by drying the board a bit more before pressing.
     I like the idea and strength of the tight bond 2. It does not =
cleanup as eaily with the towell method however.=20
      Ideas?
       Dale Erwin
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