From: "Russell Jocoy" 
To: bobmay{at}nethere.com, atm{at}shore.net
Reply-To: "Russell Jocoy" 


>From: "Bob May" 
>Reply-To: "Bob May" 
>To: "atmlist" 
>Subject: Re: ATM Tile tool questions
>Date: Thu, 14 Aug 2003 09:52:57 -0700
>
>Yes, you can gain a minute or so by agitating the mix like that but what
>you
>are really doing when doing so is weakening the final stone as you are
>breaking up the preliminary fusings of the particles by the strong
>agitating
>the mix.
>Most of the Dental Stone mixes have a working time of 5 minutes or so.
>That
>time is from when the water hits the powder and a minute and a half of
>mixing ends up being a significant part of that time.
>Bob May
>http://nav.to/bobmay
>bobmay{at}nethere.com
>NEW! http://bobmay.astronomy.net
>
>
>
("atm{at}shore.net")

    Bob,    I keep agreeing with your statements and it may sound like a yes
man but you are right  on.
These quick set "concrete or plaster" mixtures are not cement in
the laymans terms. These mixtures
are closer to epoxies in reality. Most all quick set plasters or cements
will give instructions as to NOT
add water after the process has begun, and also Not to agitate once the
hardening has started.
    To all on the list that are not used to using dental plaster,
Hydrostone, or hydraulic cement,  mix a small portion and see what
properties are and how quick they set. You can set up your process
accordingly in quick steps, just as the mixture sets up in quick steps.....
  These  mixtures will NOT
wait for you (if you have ever tried to BONDO a fender you can understand)
Oh, my bad, fenders
don't dent anymore, they bounce back out.   Here I go again.... Russ J.
("atm{at}shore.net")

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