Brad Carter on tue 6 dec 05
In the Dec 05 issue of Ceramics Monthly, I noticed a couple of glazes I
liked: on page 54, Frank Willett's Titani Yellow with rutile, iron and GB wash;
and on page 91, a commercial cone 6 glaze called Desert Sage sold by Coyote
Clay. What I like about these glazes is the layering and depth they offer. I
like the way their colors changes as the glaze breaks over edges or pooles in
recessions on the clay surface.
I know this is a big, wide-open question but can anyone suggest and share
recipes for cone six glazes with lots of depth?
Brad Carter
Grass Valley, Calif.
Susan Nebeker on tue 6 dec 05
Brad,
Mostly, I fire cone 10 reduction, but one of the best purchases I ever made was Ron Roy and John Hesselberth's book- Mastering Cone 6 Glazes.
One of my kilns is getting decrepit and between that sad fact and my obscene propane bill, I decided that some of my work was going to be fired cone 6 in that old kiln. I'd really like to get a couple more years out of it.
I fired their glaze in both oxidation and reduction and it was absolutely gorgeous both ways.
I'm looking forward to January 1, when I start working again and experimenting with more of their glazes.
Get the book- you won't regret it!
Susan Nebeker
www.pollywogpottery.com
***I know this is a big, wide-open question but can anyone suggest and share
recipes for cone six glazes with lots of depth?***
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dannon rhudy on wed 7 dec 05
Generally speaking, Brad, cone 6 glazes develop
depth with layering and/or certain firing techniques.
It isn't hard, but it does take time and patience to
sort out what works. Your best bet is to take
glazes you already like and see what happens when
you layer them, what happens when you cool slowly,
what happens when you re-fire. There's no panacea,
and there are few gifts from the kiln at cone 6.
regards
Dannon Rhudy
---
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Janet Price on wed 7 dec 05
Brad,
I've found that cream breaking red over bronze green--both of which you
can probably find with google, but if not I'll send them to you--gives a
medium forest green with nice depth and visual texture. Cream
breaking red is surprisingly interesting over a number of glazes. I'm
firing to about cone 5 in an old kiln that just does its thing. No slow
cooldown etc.
Janet
Brad Carter wrote:
> In the Dec 05 issue of Ceramics Monthly, I noticed a couple of glazes I
> liked: on page 54, Frank Willett's Titani Yellow with rutile, iron and GB wash;
> and on page 91, a commercial cone 6 glaze called Desert Sage sold by Coyote
> Clay. What I like about these glazes is the layering and depth they offer. I
> like the way their colors changes as the glaze breaks over edges or pooles in
> recessions on the clay surface.
>
> I know this is a big, wide-open question but can anyone suggest and share
> recipes for cone six glazes with lots of depth?
>
> Brad Carter
> Grass Valley, Calif.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
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>
Donna Kat on thu 8 dec 05
One of the most used cone 6 glazes that has wonderful depth and interest
when it is right is Floating Blue. Another is Randy's Red which can be
quite warm and lovely. Both of these use Gerstley and require a slow
cooling at around 1000 F for the crystals to develop. Mastering Cone 6 was
mentioned and one of the blues given in it looks like floating blue at its
brightest and doesn't use Gerstley. Another glaze that I like despite it's
settling and turning rock hard when left to sit in the bucket is wheathered
bronze green (pinnell's green?). This with MC6's raspberry can make a
knock your socks off opal green. Honey is lovely for adding nice touches
if splattered in the inside of a bowl on top of other glazes (it runs). On
Randys Red it makes gold.
Look under "stability" at -
http://www.frogpondpottery.com/index.shtml
(also has info on MC6)
John Hesselberth on thu 8 dec 05
On of the biggest differences between what we think cone 10 reduction
fired glazes look like vs. cone 6 electric fired glazes is the
"depth" that cone 10 glazes often have. Simple fact is that the
appearance of depth is due to small crystals that form within the
glaze as it cools. Formation of those crystals has nothing to do with
the fact that it is cone 10 or reduction or gas fired. It is because
most gas kilns have 9 inch thick walls and are usually bigger than
electric kilns. That results in much slower cooling which allow
crystals time to form and grow.
Lots of cone 6 glazes will have the same "depth" if you "fire down"
the kiln so it cools slowly. Go to
http://www.masteringglazes.com/Pages/faqframe.html
for an example of a way to program your computer controlled electric
kiln to give depth to many--maybe even most--cone 6 glazes.
John
Judy Rohrbaugh on thu 8 dec 05
I just started layering at cone 6 within the past few months.
I have been working on using one glaze with a color that I like on the bottom, with another glaze that has a decent amount of rutile, overtop.
When you test with layering, try every version. Which one goes on first can make a difference.
I have wondered about using granular illmenite but I don't have a glaze recipe for that.
Does anyone have an opinion or suggestions about using illmenite in cone 6?
Judy Rohrbaugh
Fine Art Stoneware
Ohio
Donna Kat on fri 9 dec 05
On Thu, 8 Dec 2005 15:25:09 -0800, Judy Rohrbaugh
wrote:
>
> I have wondered about using granular illmenite but I don't have a glaze
recipe for that.
> Does anyone have an opinion or suggestions about using illmenite in cone
6?
This glaze uses it but I never added it when I made it up so I can't say
what it looks like. The glaze itself is a nice matt grey blue. I haven't
used it in a long time so it isn't on my list to analyze.
Speckle Blue
Soda Feldspar F4 3400
Neph Syn 1700
Whiting 1260
EPK (Kaolin) 1230
Flint 730
Zinc Oxide 600
Gerstley B 330
Dolomite 260
Manganese Dioxide 200
Strontium Carb 160
Tin Oxide 130
talc 330
Cobalt Carb 60
Copper Carb 130
Ilimenite 130
10000
Earl Brunner on fri 9 dec 05
We have a tan glaze at the city which uses granular illemanite for speckles. People love to use it in combination and under waterfall brown (as evidenced by the condition of my shelves). I don't have the recipe with me right now, but can get it if you are interested.
Donna Kat wrote: On Thu, 8 Dec 2005 15:25:09 -0800, Judy Rohrbaugh
wrote:
>
> I have wondered about using granular illmenite but I don't have a glaze
recipe for that.
> Does anyone have an opinion or suggestions about using illmenite in cone
6?
This glaze uses it but I never added it when I made it up so I can't say
what it looks like. The glaze itself is a nice matt grey blue. I haven't
used it in a long time so it isn't on my list to analyze.
Speckle Blue
Soda Feldspar F4 3400
Neph Syn 1700
Whiting 1260
EPK (Kaolin) 1230
Flint 730
Zinc Oxide 600
Gerstley B 330
Dolomite 260
Manganese Dioxide 200
Strontium Carb 160
Tin Oxide 130
talc 330
Cobalt Carb 60
Copper Carb 130
Ilimenite 130
10000
______________________________________________________________________________
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
Earl Brunner
e-mail: brunv53@yahoo.com
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