[pianotech] English Overdamper Pin Blocks

[Terry Farrell]

Well, that's exactly why I posed the question. Not so much looking for an answer, but rather to stimulate some thinking.

> I do like to do a bit of prep of getting rid of
> all of the loose stuff and roughing the surface a bit


Of course, that's what you need to do for an optimal epoxy bond. However, how you gonna do that in the teeny tiny little crack such as on the pinblock in question? Unless you go in there with a router, I don't think it's gonna happen. If some sort of repair was warrented in this particular case, even though I am quite aware that a wood-to-wood epoxy bond can be very strong, I would question how strong an epoxy bond would be in whatever kind of crack that pinblock has. Really just trying to point out that even though epoxy is great stuff, when used in less than ideal situations (here, no surface prep), you may get less than optimal results.

Terry Farrell

On Nov 5, 2012, at 11:17 PM, Joseph Garrett wrote:

> Terrry asked: 
> "How well does it adhere to old hide glue?"
> 
> Terry,
> I'd expect that question from anyone else, except you! MR. EPOXY!<G> I've
> found that epoxy will adhere to just about anything adequately for a solid
> joint. However, a joint with old hide glue in it, will not allow the epoxy
> to penetrate the wood. So, I do like to do a bit of prep of getting rid of
> all of the loose stuff and roughing the surface a bit. Haven't had any
> problems on that front. Most problems, I've encountered have been things
> like olde epoxy, (no "use before" on the package, i.e. Ace Hardware brand
> is the worst offender!), punky wood that I eventually find can't be glue
> with anything. However, the last time I did the Epoxy/Soundboard thang, the
> piano actually had termite problems  in the lower soundboard, (Upright), I
> was able to get the penetration and encapsulated them wiggly little
> suckers! Plays and sounds better than it has a right to.<G>
> Best,
> Joew
> 
> 
> Joe Garrett, R.P.T.
> Captain of the Tool Police
> Squares R I
>