Randall Moody on mon 4 oct 99
I have a recipe for Robert Sperry's crawl glaze but do not know what
cone it is. If anyone else has this recipe could you give me a hand. Also I
am in need of a low fire (04-1) crawl glaze or slip preferably white.
Thanks!!
zahidi neale on tue 5 oct 99
I use it at ^06 ox with success. Looks great over dark disaster glaze.
Zee in Slidell, LA
-----Original Message-----
From: Randall Moody
To: CLAYART@LSV.UKY.EDU
Date: Monday, October 04, 1999 5:38 PM
Subject: low fire crawl
----------------------------Original message----------------------------
I have a recipe for Robert Sperry's crawl glaze but do not know what
cone it is. If anyone else has this recipe could you give me a hand. Also I
am in need of a low fire (04-1) crawl glaze or slip preferably white.
Thanks!!
Mike Gordon on wed 6 oct 99
Hi,
Why don't you post the Sperry recipie? I always liked that effect. Mike
Murray & Bacia Edelman on thu 7 oct 99
At 06:39 PM 10/4/99 EDT, you wrote:
>----------------------------Original message----------------------------
> I have a recipe for Robert Sperry's crawl glaze but do not know what
>cone it is. If anyone else has this recipe could you give me a hand. Also I
>am in need of a low fire (04-1) crawl glaze or slip preferably white.
>Thanks!!
Randall: In Val Cushing's Handbook there is a c/06 to 04 glaze called
*Beads*.
It should be applied over something else like a slip or underglaze.
Magnesium Carbonate 33.3
Borax 26.7
Gerstley Borate 33.3
Flint 6.7
As to the cone for Robert Sperry's crawl glaze, there is a note under a
photo in the *Spirit of Clay* by Piepenburg on p.301 if you can get hold of
it. It was "obtained by applying a thick white SLIP over a black glaze
that was fired to cone 7. As it dried, the clay slip shrank dramatically
on the surface of the smooth glaze. The slip was permanently affixed to
the glaze by refiring the piece to cone 5."
I hope this helps. Bacia
Randall Moody on thu 7 oct 99
Here it is:
Neph Sye 65%
Magnesium Carb 25
Ball Clay 10
For color add: 10% stain
----- Original Message -----
From: Mike Gordon
To:
Sent: Wednesday, October 06, 1999 4:20 PM
Subject: Re: low fire crawl
> ----------------------------Original message----------------------------
> Hi,
> Why don't you post the Sperry recipie? I always liked that effect. Mike
Lorraine Pierce on fri 8 oct 99
Hi Bacia...I'm glad to see the post on a crawling slip; I have just this evening
finished dipping several test tiles, bisqued and unbisqued in plain thick slip
and slip with vinigar added to help promote (I hope) crawling, as RR suggested.
I am interested in a crawling slip to put under a glaze on functional ware.
Joeseph Bennion, in the 1986 December issue of CM, pg. 50, has a cup pictured
that looks as tho the slip is under, not over the glaze. Of course it could be
an engobe. The mug appears very functional. there is another piece on pg.48,
with a desciption of, "beaker with crackle slip under green glaze". In 1986 he
was listed as a studio potter and teacher at Brigham Young University. Does
anyone have his address? I have never seen a post from him on Clayart.Also I
vaguely remember an old recipe of Rhode's for crackle slip but I cannot find it.
Perhaps someone has it out there in cyberspace. Lori in New Port Richey Fl.
Murray & Bacia Edelman wrote:
> ----------------------------Original message----------------------------
> At 06:39 PM 10/4/99 EDT, you wrote:
> >----------------------------Original message----------------------------
> > I have a recipe for Robert Sperry's crawl glaze but do not know what
> >cone it is. If anyone else has this recipe could you give me a hand. Also I
> >am in need of a low fire (04-1) crawl glaze or slip preferably white.
> >Thanks!!
> Randall: In Val Cushing's Handbook there is a c/06 to 04 glaze called
> *Beads*.
> It should be applied over something else like a slip or underglaze.
> Magnesium Carbonate 33.3
> Borax 26.7
> Gerstley Borate 33.3
> Flint 6.7
>
> As to the cone for Robert Sperry's crawl glaze, there is a note under a
> photo in the *Spirit of Clay* by Piepenburg on p.301 if you can get hold of
> it. It was "obtained by applying a thick white SLIP over a black glaze
> that was fired to cone 7. As it dried, the clay slip shrank dramatically
> on the surface of the smooth glaze. The slip was permanently affixed to
> the glaze by refiring the piece to cone 5."
> I hope this helps. Bacia
Ingeborg Foco on fri 8 oct 99
For what it's worth, my Sperry Crawl glaze is the same recipie but I
show it to be a ^10 Reduction.
I have used it a number of times at ^10 R with excellent results
Nepheline Syenite 65
Magnesium Carb 25
Ball Clay l0
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