[pianotech] glue and screws - was Wood? - straightening...

[Joe Goss]

I find sheetrock screws a problem when used in places where parts will be 
removed often, or in new pianos that use fakey wood!
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Joseph Garrett" <joegarrett at earthlink.net>
To: "pianotech" <pianotech at ptg.org>
Sent: Saturday, June 30, 2012 7:20 PM
Subject: [pianotech] glue and screws - was Wood? - straightening...


> Ron N responded:
> Thumper,
>> As I said before, (you must have missed it<G>), Screws do not add
>> strength!! They, in fact, create problems of their own.
>
> Agreed, in something like a broken leg. Screws are, however, very good
> at pulling otherwise unclampable joints together. After the glue dries,
> you can replace the screws with dowels - or not.
>
> Completely agree.<G>
>
>
>>Do not EVER us
>> those damned "sheet rock screws" in a piano!
>
> Sheetrock screws are quite handy in all sorts of applications including
> pianos.
>
> O.K.? Would you be specific? Where are they useable in pianos? <G>
> I would say that Sheet Rock Screws are good for many things other than
> sheet rock. However, they have one flaw, (my perception), the threads go
> all the way to the head, which makes it near-impossible to pull two pieces
> together, unless you strip one side. This tends to make the user want to
> over-cinch them and then they break.
>
>
>>They are made for Sheet
>> Rock! They are hardened, which makes them a real pain in the tush to
>> extract should they break...which they do more often than not.
>
> Then you need to learn how to use and install them. The hardness of the
> screws is what makes them much more difficult to break then the typical
> low grade imported junk that is sold for wood screws these days. I
> wouldn't be without them.
>
> Agree with your assessment of the current crap that is being foisted off 
> on
> us. Still not sold on the Sheet Rock Screw as something that is viable in
> our work.
>
>
>> HIDE GLUE is what the piano was put together
>> with.
>
> Not a reasonably recent piano.
>
> Excuse me, Ron, I was referring to an Old Chickering that Thumper is
> working on.  Pre WWII, not "reasonably recent piano(s)".<G>
>
>
>>Use that. any other Glue will not bond to hide glue very well.
>
> Roger that!
>
> Including epoxy, nor will any glue at all bond with the more modern
> glues when the joint fails, whatever you do.
>
> Totally agree. Especially all of the "experimental glues" that seem to 
> make
> their way into the newer stuff, (post WWII and beyond!) Really creates 
> some
> interesting problems to be sure.<G>
>
> Ron
> Regards,
> Joe
> Joe Garrett, R.P.T.
> Captain of the Tool Police
> Squares R I
>
>