[SEL] SEL Digest, Vol 61, Issue 9

[Jerry Evans]

At 06:00 PM 09/04/2009, you wrote:
>Message: 3
>Date: Wed, 08 Apr 2009 13:35:00 -0400
>From: John Neth <jneth3 at mac.com>
>Subject: Re: [SEL] Penitrating oil
>
>Acetone is an organic solvent.  The primary ingredient in fingernail 
>polish remover.  It will dissolve super-glue.  It is very useful but be 
>careful.  Use glass or metal containers as it will dissolve many plastics, 
>paints etc.  Put a drop on a styrofoam cup and watch what happens....
>John
>John W. Neth III

Hi John,
          That's not a good comparison. Put a "drop" of gas or pretty much 
any "petro chemical" product "styrofoam" and the result will be the same. 
"Styrofoam" (expanded polystyrene - pst) is very unstable and pretty much 
any solvent will destroy it.
         One of it's uses is when casting concrete that needs a "cavity". 
The "cavity" is made by inserting a "styrofoam" block of the correct shape 
- once the concrete has dried all that needs to be done is to throw some 
petrol (gas) onto the styrene and it dissolves.
         Just my cents worth.


Keep the revs up (or down)
Jerry Evans
Near Johannesburg in Sunny South Africa.
Etched Brass Engine Plates made to order:
<www.oldengine.org/members/evans/plates/index.htm>