Re: ATM Plaster of Paris Tool question

[Joseph Goins <jb_goins@yahoo.com>]

Daniel,
  Do you know how long real plaster should dry for before sealing?
Joe
--- Daniel Fundo <fundo@bellsouth.net> wrote:
> << I finally got down and cast my POP tool for my 12" blank.  I used
> at
> least 4 lbs of POP (it's what I had on hand) but the thickness is
> only
> about 1.5".  Is this thick enough?  Can I add more pop at a later
> time? 
> >>
> 
> Joe,  I made a 12" diameter dental plaster tool 20+ years ago that
> was
> only 1.25" thick.  It has worked well through three mirror
> grindings/regrinding.  I'm not sure about adding extra thickness
> later. 
> With most plaster or portland cement, you need to rough up the
> surface
> quite a bit to get good adhesion between pours.
> 
> *****-----
> Dan F.
> Secretary/MAS
> Memphis, TN
> 


=====
Joseph Goins
1091 Harness Cir #1
San Ramon, CA
(925) 277-1351

http://www.geocities.com/jb_goins/

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