Protek & Teflon

[jolly roger]

Hi Terry,
             Several comments, life is not black and white. It is OK to use
on brass pins that are really bad to get the worst of the mess off and is
quite quick.  Having said that I would finish off with a high grade metal
polish.   Brasso silver polish is far less abrasive than  the regular and
works well.
Now to plated pins.   I would not recommend steel wool, as it has a
tendency to tear the plating.
Good quality rebuilds.   Replace the pins. not very expensive and almost as
quick when you are set up, and have done a few.
 Finally I have made up a couple of tools that fit into a drill, that have
felt inserts.  I little metal pilish and i can clean up a set of tarnished
pins in a few mins.
Regards Roger



At 08:59 AM 8/5/01 -0400, you wrote:
>> Using a real fine metal polish (Brasso is far too
>> crude) the metal can be polished......
>
>I'm not familiar with "Brasso". The woman that does my key bushings also
>will "clean the key pins". She uses #0000 steel wool. That leaves the pins
>clean, but visibly dulled. I have always figured this to be a bad thing, as
>the roughened surface would be of greater friction than a super-smooth
>surface, and also dramatically increase surface area and thus increase the
>rate of future corrosion. I have always taken a metal polish to them after I
>get them back and polished them. She says the steel wool is the way to go. I
>have my doubts about it being the BEST way to go. Can I assume you agree
>with me?
>
>Terry Farrell
>
>----- Original Message -----
>From: "Newton Hunt" <nhunt@optonline.net>
>To: <pianotech@ptg.org>
>Sent: Saturday, August 04, 2001 11:05 PM
>Subject: Re: Protek & Teflon
>
>
>> > I use drafting tape,
>>
>> Hi Kevin,
>>
>> Gee, I forgot about drafting tape.  Many tape makers try to get the
>stickiest
>> stuff they can get or make.  Of of those glues are stronger than the
>substrate
>> they are applied to.  Drafting tape on the other hand is designed to hold
>the
>> paper in one place but the tape will come off without tearing the paper or
>> leaving some of itself behind.  Good stuff for weak or temporary stickum.
>>
>> One of the problems with key pins is that they corrode.  Not much and not
>> visibly but corrode they do.  Using a real fine metal polish (Brasso is
>far too
>> crude) the metal can be polished THEN lubricated along with the felt and
>the
>> bushings will last much longer.  It is the polishing that helps the most
>and a
>> good coating of a good lubricant will help prevent future corrosion.
>>
>> Any time you can rub the pin with the key bushing (apply sideways
>pressure) and
>> get drag it is a corrosion problem.  Don't believe your eyes, believe your
>> fingers.
>>
>> Have a good week all.
>>
>> Newton
>