CA accelerator misting of pinblock?

Joe & Penny Goss imatunr@primenet.com
Sun, 9 May 1999 09:10:37 -0600


Bill,
I like your approach of applying the accelerator with a syringe. However
since I need to get away from the fumes as quickly as possible when doing
pins it is the spray that is used.
Most  other repairs do not get sprayed but a drop of accelerator applied
with the end of the spray tube. I leave the little plug in the end of the
tube (except for when using the spray <G>) 
so that the accelerator will not evaporate. This also keeps the tube from
becoming clogged when applying accelerator to the glue.
Joe Goss
Always on the level, well traveled, and now at
http://www.primenet.com.~imatunr/
----------
> From: BSimon1234@AOL.COM
> To: pianotech@ptg.org
> Subject: CA accelerator misting of pinblock?
> Date: Sunday, May 09, 1999 2:47 AM
> 
> Joe Goss wrote;
> 
> <<You do not need to use activator if you are able to come back the next
day
> to tune.>>
> 
> I would have thought so also, but in our dry environment in Phoenix it
ain't 
> necessarily so. Here, if you put a large puddle of CA glue on glass, say 
> about the size of a half or silver dollar, 24 hours later it will likely
be 
> totally liquid in the center, with just the edges of the puddle cured.
Put a 
> tiny bit of accelerator on it and two minutes later the whole thing is
cured 
> solid.
> 
> I did a horrible grand once, very heavily treated with some brown pin 
> tightener that left a heavy sticky residue around the pins. I treated the

> piano heavily with CA glue, and the stuff was still liquid the next day.
( 
> perhaps there was some interfering chemical reaction) I did not know of 
> accelerators back then, other than water.  Consequently, now when I treat
the 
> whole piano now, I go back and at the base of each pin I put a
microscopic 
> drop of the accelerator, using a 1 cc insulin syringe with a #25 needle, 
> which is incredibly tiny, and makes very tiny drops.  Across the whole
piano 
> I use only one or two cc's of accelerator.   You can see the CA glue cure

> solid and wrinkle a bit. 
> 
> Joe Goss said; <<When using the activator as a spray, try to protect the
bass 
> strings by
> shielding them with an old newspaper  or anything handy, held in your
hand
> and moving it along as you spray.>>
> 
> BIG QUESTION - Is it a good idea to spray the stuff over the pins, coils,

> plate, etc???? According to the Material Safety Data sheets I have, most 
> accelerators are just Dichlorofluoroethane. It is 100% volatile, rather 
> rapidly at that, and if it doesn't hurt the plate, finish, strings,etc, -

> then why not mist it on?  I have been too cautious to do so, but I would
like 
> to hear of any other's experience and any problems in doing so.
> 
> Thanks, 
> 
> Bill Simon
> Phoenix
> 
> 


This PTG archive page provided courtesy of Moy Piano Service, LLC