> I'm curious, however, why you would seem to think 'glass-like hardness' > would be advantageous for either soundboard assembly or installation. Make clear note here Del, I claim no authoritative knowledge here, but this is my logic: The traditional adhesive for soundboard installation is hot hide glue. Hot hide glue dries to a glass-like hardness (at least harder than Titebond which retains some noticeable flexability). A hard-drying glue might be preferable to a glue which dries somewhat flexible because the flexable stuff might have some capacity to dampen soundboard vibrations. That, in a nutshell, is the logic. Now, it may well be the case that after adequate application of pressure to the Titebond board/rim joint, there is not enough glue to dampen anything - regardless of what kind of glue you use. That may well be true. And in all honesty, if you say it is so, I believe you. If you use Titebond to install a board, I have no doubt it is as good as anything else. I have yet to buy any of the Bolduc glue. I you use Titebond for your boards, my best guess is that I will also when I do my first board in a couple months. What are your thoughts on the flexible glue line possibility of soundboard dampening thing? Not realistic? Thanks for your input Del. Terry Farrell ----- Original Message ----- From: "Delwin D Fandrich" <pianobuilders@olynet.com> To: <pianotech@ptg.org> Sent: Saturday, January 12, 2002 12:12 PM Subject: Re: my own Soundboard > > ----- Original Message ----- > From: "Farrell" <mfarrel2@tampabay.rr.com> > To: <pianotech@ptg.org> > Sent: January 11, 2002 5:15 PM > Subject: Re: my own Soundboard > > > > Hi Greg. One particular thing I noted from the Bolduc soundboard > > installation seminar was his plug for Bolduc glue. It is a white liquid > glue > > that appears much like Titebond. It has a long working life like Titebond, > > but dries to a glass-like hardness like hide glue (very much unlike > Titebond > > and other "white" glues). It seemed to me to be the best of both worlds: > > hard glass-like bond, but long working time for the one-person shop to > > install a board. I'm sure it is available from Pianotek. > > > > Terry Farrell > > > > Terry, Greg, et al, > > Titebond II works quite well for soundboard assembly. It has a good working > life, it is nearly waterproof and dries/cures to a rigid enough bond that it > can be used for most bent-laminate purposes. > > I'm curious, however, why you would seem to think 'glass-like hardness' > would be advantageous for either soundboard assembly or installation. > Neither the spruce used to make the soundboard panel nor the maple (or > Select Hardwood) rims the soundboard is glued to is glass-like hard. Nor are > they particularly rigid. > > If you'd like to get more sophisticated in your selection of adhesives--and > if you're willing to purchase them in 1-gallon and 5-gallon quantities--you > can get MPA II from CustomPak. (See www.custompak.com. Their site lists > mostly 1-gallon quantities, call them, 800.454.4583, for 5-gallon prices and > more information.) This is simply a commercial version of Titebond II (made > by Borden [sp?]). It is white and cures to a milky, translucent color. > > You can also purchase (from CustomPak) MPAs in variety of other > formulations; high viscosity, low viscosity, heat setting, etc. > > Del > >
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