Cleaning epoxy off soundboard joint --- was glues

[Farrell]

I don't have anything to offer beyond what Michael Morvan and Ron Nossaman have stated. Just knowing a bit about wood and glues, I would try the Morvan method first, and if that doesn't work, try Ron N's suggestion.

My heart goes out to you. That isn't fair. Somebody bonding a soundboard to a rim with epoxy is totally out-of-line - and that coming from epoxy-man himself!

Terry Farrell
  ----- Original Message ----- 
    Hey Mr glue.  So tell me....I'm redoing a belly job that failed. A compression crowner gone amuck. It's Not my board, but  some body else & the board was glued into the rim with Epoxy.  Ughhh!
     I'd ideally like to get down to the bare wood.  as the epoxy is laid down on top of the old hide glue & all. My question is how to get it off in ten minutes without gnashing of teeth.  Yes I've tried scraping...takes forever.  tried soaking a section in acetone for a short while.  Tried carbide grinders.  I'm looking for the easy answer..Stuffs like steel.  I suppose I could just leave the epoxy which is flat a smooth & glue the new board back in with epoxy but I don't like this idea because of what I'm currently dealing with.  My admonition to other bellyheads is, that epoxy isn't necessary to keep a sound board ....which is wood to stay glued to a rim....also wood......JMO
    suggestions?
    Dale
    List,
        Some helpful information on glues:

    White glue (Elmer's, consumer grade glue,  etc..,)  and yellow glue (Titebond, industrial grade wood glue,  etc..) are both PVA'S,  (Polyvinyl Acetate) and both are "Aliphatic Resins". PVC-E glue is also in the PVA family with a few different compounds added to make it remain semi-flexible when dry. Aliphatic Resin is a general chemistry term that implies "at the molecular level, these products (glues, etc..) arrange themselves in chains". When yellow glue came out, manufacturers needed a fancy slogan to differentiate yellow glue from white glue so they called it Aliphatic resin, but in reality, not economy, they both are Aliphatic Resin. A lot of the Yellow Glues are stronger than the White Glues, but they are both PVA'S and are both Aliphatic Resins. PVA'S are further broken down into subgroups based on their strength, application, water resistance etc.. The PVA'S are a huge family of glues that most of us use and think they are something distinctly different because of what they are called or what someone recommends they be used for. Choose your glues carefully, any supplier/manufacturer can supply you with a specifications sheet or MSDS, this will give you the properties of the glue and most importantly will tell you what the MANUFACTURER created the glue for, not simply what a supply house markets it as. Of all the glue books I have read, "The Glue Book" by William Tandy Young makes all this easy to understand. Remember, spare the next technician the pain of fixing an improper glue job, because the next technician might be you. I think Reblitz said something like that first.

    Michael A. Morvan
    Blackstone Valley Piano
    Dedicated To Advancing The Art Of Keyboard Restoration
    76 Sutton Street
    Uxbridge, Ma. 01569
    (508) 278-9762
    Keymaestro at verizon.net
    www.pianoandorgankeys.com 
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