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grogs

updated sat 6 nov 99

 

Michael Cather on wed 3 nov 99

hi,
im a potter out here in calif.... i picked up your address from an article
on slip stuff

im looking for recomendations for grogs to be mixed with earthen ware clay
(06 or less) to help withstand open pit firing ...
but will not mess up the ability to burnish the clay to that lovely
sheen-polish .
anyway...
hope this message makes its way thru the telephone lines or where ever it
goes.

thanks!
Michael

John Fazzino on thu 4 nov 99

Hi,

You could add up to 50% grog of different sizes to help withstand the shock
of pit firing. 25% works well. I think the burnishing will push the grog
back in below the surface so you will still get a smooth surface.

John

Rod, Marian, and Holly Morris on thu 4 nov 99

On this subject, I have added coffee grounds and tea leaves (from bags) to
clay to open it up and lighten it up, and it works fine, both as a grog to
help in building, and to lighten the piece. Has anyone tried this to help
with heat shock resistance? If so, I bet you could burnish over these, since
they are soft, especially the tea leaves.

----- Original Message -----
From: Michael Cather
To:
Sent: Wednesday, November 03, 1999 5:54 PM
Subject: grogs


> ----------------------------Original message----------------------------
> hi,
> im a potter out here in calif.... i picked up your address from an article
> on slip stuff
>
> im looking for recomendations for grogs to be mixed with earthen ware clay
> (06 or less) to help withstand open pit firing ...
> but will not mess up the ability to burnish the clay to that lovely
> sheen-polish .
> anyway...
> hope this message makes its way thru the telephone lines or where ever it
> goes.
>
> thanks!
> Michael
>

Anji Henderson on fri 5 nov 99


This reminds me of an article I read some time ago
about adding vermiculite.. And the vermiculite adds
little golden flecks too..But make sure those suckers
are dry!!!
Anji

--- "Rod, Marian, and Holly Morris"
wrote:
> ----------------------------Original
> message----------------------------
> On this subject, I have added coffee grounds and tea
> leaves (from bags) to
> clay to open it up and lighten it up, and it works
> fine, both as a grog to
> help in building, and to lighten the piece. Has
> anyone tried this to help
> with heat shock resistance? If so, I bet you could
> burnish over these, since
> they are soft, especially the tea leaves.
>
> ----- Original Message -----
> From: Michael Cather
> To:
> Sent: Wednesday, November 03, 1999 5:54 PM
> Subject: grogs
>
>
> > ----------------------------Original
> message----------------------------
> > hi,
> > im a potter out here in calif.... i picked up your
> address from an article
> > on slip stuff
> >
> > im looking for recomendations for grogs to be
> mixed with earthen ware clay
> > (06 or less) to help withstand open pit firing ...
> > but will not mess up the ability to burnish the
> clay to that lovely
> > sheen-polish .
> > anyway...
> > hope this message makes its way thru the telephone
> lines or where ever it
> > goes.
> >
> > thanks!
> > Michael
> >
>

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