[Clayart] white glaze recipe

Lee togeika at gmail.com
Wed Dec 18 18:42:52 EST 2013


oops!  Should read:   Now works in earthen ware.


On Wed, Dec 18, 2013 at 5:42 PM, Lee <togeika at gmail.com> wrote:

> Alice,   my friend from Northern Clay Center, Mike Helke uses this same
> glaze on porcelain and fires it to cone 10.   He adds .25% copper for a
> fake celadon in oxidation.
>
> He recently recieved his MFA from Alfred and not works in earthenware.
>
>
> On Tue, Dec 17, 2013 at 2:27 PM, Alice DeLisle <wanderland at att.net> wrote:
>
>> On Dec 16, 2013, at 9:56 PM, clayart-request at lists.clayartworld.comwrote:
>>
>> > From: Judy Smith <smith2001ja at gmail.com>
>> > Subject: [Clayart] white glaze recipe
>> > Date: December 16, 2013 5:37:42 PM EST
>> > To: Clayart <clayart at lists.clayartworld.com>
>> >
>> >
>> > I make Bmix pottery and fire it in oxidation to cone 6.  I am looking
>> for a
>> > whitish semi-transparent slightly runny glaze like the one on the upped
>> > portion of this beautiful Mary Cuzick bowl.  I have tried adding a
>> little
>> > tin oxide to a couple of my clear glazes and I just can't get it right.
>> > Can anyone please send me a glaze to try.  Here is a link to the
>> picture.
>> > http://ww2.nscc.edu/smith_judy/cuzick1.jpg
>> >
>> > Thanks,
>> > Judy Smith
>> > Nashville, TN
>>
>>
>> I have a glaze that I call Pink Pearl that looks similar to the whitish
>> glaze on that piece.  The glaze is pearly, pinkish, bluish white.  It is
>> Chun Clear with 3% rutile and 0.25% Spanish red iron oxide.  Cone 6,
>> oxidation.
>> Chun Clear (CC)
>> F4 feldspar     38
>> whiting         14
>> silica          30
>> OM4             6
>> zinc oxide      12
>> plus 2% bentonite
>>
>> CC breaks beautifully on even the most subtle texture and I love it for
>> that.  I made myself a set of dinnerware using CC (with a mason stain in
>> it) and am very happy with the results.  CC can, however, be a difficult
>> glaze to work with.  With time, the glaze in the bucket gets thicker but
>> you can't just add water to adjust it.  Too much water and it will form a
>> hard pan in the bottom of the bucket that won't re-suspend.  I add 0.75 ml
>> of water per gram of glaze and then adjust the consistency as needed with
>> Darvan.  Sodium silicate would also work.
>>
>> Another thing the CC can do is to leave tiny pock marks.  Before dipping
>> a piece in the glaze, I use a tiny brush to put glaze in any crevices, like
>> where a handle is attached, etc.  After dipping and drying the glaze, I
>>  brush the surface with my finger to remove any visible pock marks in the
>> unfired glaze.  If there are pock marks that are bigger than tiny, I might
>> use the tiny brush to fill in with glaze.
>>
>> I am planning to try the same colorants in different transparent glossy
>> bases but haven't gotten around to it.  But that is what I would suggest
>> that you do unless you want to deal with the idiocyncrasies of CC.
>>
>> Good luck,
>> Alice DeLisle
>>
>> wanderland at att.net
>> http://www.etsy.com/shop/IslandTextures
>> http://www.flickr.com/photos/alice_delisle/
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>>
>>
>
>
> --
> --
>  Lee 李 Love in Longfellow,Minneapolis, MN USA
>
>  "Ta tIr na n-óg ar chul an tI—tIr dlainn trina chéile"—that is, "The land
> of eternal youth is behind the house, a beautiful land fluent within
> itself." -- John O'Donohue
>



-- 
--
 Lee 李 Love in Longfellow,Minneapolis, MN USA

 "Ta tIr na n-óg ar chul an tI—tIr dlainn trina chéile"—that is, "The land
of eternal youth is behind the house, a beautiful land fluent within
itself." -- John O'Donohue



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