Sizing of pin bushings

[jolly roger]

Hi Kevin,
               That is why I stress leaving over night to dry. One drop per
bushing does the Job.  If you start to heat the bushing after wetting then
the shrinking is toooooo aggressive.  I am not a fan for shrinking hammer
flanges, my prefference is to repin, since it has such a big effect on
tone.  In my area I like 4 to 5 swings, more humid climates 6 swings will
give a safety margin.
    
Having said that, I have used rubbing alcohol neat, and it works.   The
good thing about rubbing alcohol, it's availiable at any drug store, and
supermarket.

Regards Roger



At 07:21 PM 9/24/01 -0700, you wrote:
>    Gee, Roger. Since rubbing alcohol is already thirty percent H2O, and all
>the alcohol does is get the water into the bushing and then flash off, I'd a
>thunk that rubbing alcohol alone was more than enough. But you want even
>MORE water in there? I'd think that after I was done, I'd be getting ready
>to re-bush, but you say you've been doing it for years. Hhhhhmm!
>Well, I trust you. Maybe I'll try it.
>
>
>----- Original Message -----
>From: "jolly roger" <baldyam@sk.sympatico.ca>
>To: <pianotech@ptg.org>
>Sent: Monday, September 24, 2001 2:47 PM
>Subject: RE: Sizing of pin bushings
>
>
>> At 02:08 PM 9/24/01 -0500, you wrote:
>> >John,  Are you asking me if I can use denatured alcohol? or are you
>telling
>> >me that I can use it in place of methanol mixed with water?.  Thanks
>John,
>> > Regards, Gordon
>> >
>> Hi Gordon,
>>                 Just buy a bottle of rubbing alcohol from the drug store
>> and mix with 50% water. leave over night to dry  for best results.
>> I've been using it for yrs with no problems.
>> Roger
>