Farrell wrote: > Is this just urban legend or what? What I am especially concerned about > is laminated ribs, rib-to-panel, and bridge-to-panel joints with > Tightbond. I know its been stated that creep is not a problem, but I was > rather suprised to see the above on a website that otherwise seems to > provide pretty darn good information. > > Terry Farrell You will also find the same information in "Understanding Wood" and the "wood Handbook". What can I say? Use hot hide glue for these things, it doesn't creep. For furniture making it's great but in the piano I only use PVA for less critical things like gluing in a dowel or edge gluing the cross grain flitches for a pin block. Learn to use hot hide glue and you will not have a problem. I have an out of print book, U.S. Department of Agriculture Technical Bulletin No. 1512, that has the data from testing wood glued joints. A interesting thing to find is that hide glue is for many applications structurally as strong as many of the space age adhesives. The one draw-back: it is not weather proof. John Hartman RPT John Hartman Pianos [link redacted at request of site owner - Jul 25, 2015] Rebuilding Steinway and Mason & Hamlin Grand Pianos Since 1979 Piano Technicians Journal Journal Illustrator/Contributing Editor [link redacted at request of site owner - Jul 25, 2015]
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