Synthetic Shimaoka Nami Jiro cone 10.

[Lee]

Anybody doing glaze testing?

Synthetic Shimaoka Nami Jiro cone 9/10.

EPK 49
Whiting 14
Dolomite 8
Silica 7.4
Custer 7.4
custer 24
Mag Carb .07
Bone ash 2.3
R. I Ox.  .08

        I will do a line blend adding 5 and 10% Kaolin.   I may test
tile 6 instead of EPK too.  When John Anthony tested for me, it beaded
and I would like it more smooth for glaze trailing over it.    If
anybody tries, please share your tests.

--
--
Lee Love in Minneapolis
http://mingeisota.blogspot.com/

"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

[rickma...@comcast.net]

I will see if i can get a student to run some tests.

 

rick

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[Lee]

On Thu, Feb 11, 2010 at 10:13 AM, Lee <tog...@gmail.com> wrote:

Anybody doing glaze testing?

Synthetic Shimaoka Nami Jiro cone 9/10.

EPK 49
Whiting 14
Dolomite 8
Silica 7.4

custer 24
Mag Carb .07
Bone ash 2.3
R. I Ox.  .08

Thanks Paul!   Corrected recipe above!

[Lee]

On Thu, Feb 11, 2010 at 11:22 AM, <rickma...@comcast.net> wrote:

I will see if i can get a student to run some tests.

Thanks Rick!   Please use the corrected recipe below.

Lee

Synthetic Shimaoka Nami Jiro cone 9/10.

EPK 49
Whiting 14
Dolomite 8
Silica 7.4

custer 24
Mag Carb .07
Bone ash 2.3
R. I Ox.  .08

        I will do a line blend adding 5 and 10% Kaolin.   I may test
tile 6 instead of EPK too.

[rickma...@comcast.net]

 I printed out the correct one.  Thanks for making the correction.

 

Rick

[Lee In Mpls, MN]

  Have to continue this tests.

[Bill Fornshell]

Hi Lee,

I have a small cone 10 test kiln.  What do you think this would look like fired in a "all" oxidation situation?

Question(s)

1. Does the type, brand or particle size of the silica make any difference?

2. Should the red iron oxide be calcined first?

Also I found this reply on a different group post:

Lee, do the original non-synthetic versions of Nami Jiro use wood ash or what? Just curious. You have some older photos up that look great. I know nothing about this glaze (type).

Yes.  I used:

3 parts washed wood ash
2 parts  Gariome Clay
1 part Amakusa Stone (porcelain stone.)

These were mixed by wet ladle measure (each material made into a slip/slurry, water skimmed off the top and then ladled out.)

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[Lee]

Hi Bill!  Maybe we can breath some life into this list!  Finest silica would be best.  No need to calcine the RIOx.  Maybe Spanish would be good?   I will test in my next firing.

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Sent from my Galaxy Tablet
Lee Love
Longfellow, Minneapolis

[Bill Fornshell]

Hi Lee,

I will dig out my test kiln (electric) and glaze materials and mix up a small batch and see what it does in a short - oxidation - firing.  

Do you think this glaze would benefit from a soaking at top end temperature?

Bill

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From: Lee <tog...@gmail.com>
To: WoodKiln <wood...@googlegroups.com>
Sent: Saturday, September 14, 2013 9:29 PM
Subject: Re: *WoodKiln* Re: *ClayCraft* Synthetic Shimaoka Nami Jiro cone 10.

[June]

[June]

Lee,

Since I'm bored out of my skull why recuperating from surgery, I thought I'd run your original Nami Jiro through my Insight software and I came up with this version.

Nami Jiro Cone 9-10

talc                      0.95
Dolomite             19.21
G-200 Feldspar    43.92
Whiting               22.82
Bandy Black         6.10
bone ash               5.06
manganese carb    1.95


I chose the ingredients which would closely match the original. All the RO column ingredients and alumina match the original. The only exception is the K and N total is same but the K is not as high and the n is a bit lower. If I chose a higher K, it would have made the silica even higher. The silica is just a bit higher which actually helps the explain a bit. Both the original and this one are below the minimum suggested silica for a cone 10 glaze.

If someone wants to try this, they might want to try a Custer version too. It will have more siica and will affect the RO column as well. I chose Bandy Black because it supplies the trace of manganese that is in the original. I also use Pine Ash, as the ash, since I thought that may be the most likely ash that was used, since many or all of the wood kilns I visited in Japan used red pine. Also, the G-200 was based on the original G-200 and not the current one.

I'm only doing earthenware these days, so I won't be testing this; but if anyone does, I'd appreciate some feedback.

Warm regards,
June Perry

On Thursday, February 11, 2010 8:13:14 AM UTC-8, Lee In Mpls, MN wrote:

[Paul Herman]

Hi Lee, and Bill,

I think it's a GREAT idea to try to bring this list back to life. I would like to make some reconnections to the wood fire community. They are a kind of quiet bunch I think, and not very communicative by nature, but here goes an attempt.

What are you folks doing? Any wood firings going on? If not, have you got any plans for wood firing in the future? I you are going to build a kiln, what kind?

What's going on here is that we are getting ready for the 28th firing of the wood kiln this fall, October 27th through 30th. We have done a firing every fall and spring, relentlessly, since spring 2000. I think we are starting to get to know a little about how to fire the kiln, but it's a long learning process. As they say, the joy is in the journey. It's been a wonderful learning experience for me, and a fine bunch of people have gathered here around the kiln for firings. A few of the guys are coming out Thursday for a few hours of splitting and stacking, and kiln cleaning. Then the wood pile will be ready and big enough to satisfy me. I think we use about six cords of pine for a firing.

I've been making a lot of domestic ware, casseroles, bowls and mugs for this firing. That is what seems to regularly sell. What are you making these days?

I always enjoy the little magazine for wood firers, The Log Book, that comes out four times a year.

I hope you all are having a good year. 

Paul Herman

Great Basin Pottery

Doyle, California US

www.greatbasinpottery.com/

[rickma...@comcast.net]

We are planing a firing of our small anagama in Western Washington for mid October.  It will be the 10 firing of our kiln.  We have processed about 10-12 cords of wood for the following year, out wood shed is getting full.  Many weekend days have been spent cutting, splitting, and stacking wood.

Rick Mahaffey

---

From: "Paul Herman" <potte...@frontiernet.net>
To: wood...@googlegroups.com
Cc: "ClayCraft" <Clay...@googlegroups.com>
Sent: Sunday, September 15, 2013 12:49:45 PM
Subject: *WoodKiln* Breathing life into the list

[Mark Issenberg]

I will be firing my wood kiln in 2 weeks, I do not have Bandy Black.

Mark 

[Lee]

Mark,   maybe you could do this one:

Synthetic Shimaoka Nami Jiro cone 9/10.

EPK 49
Whiting 14
Dolomite 8
Silica 7.4
Custer 7.4
custer 24
Mag Carb .07
Bone ash 2.3
R. I Ox.  .08

His actual recipe was:

3 parts wood ash

2 parts gariome ball clay 

1 part Amakusa Stone.

[Bill Fornshell]

Hi,

OK, I will ask the question, where did the Brande Black come from?

Bill Fornshell

---

From: Lee <l...@mashiko.org>
To: WoodKiln <wood...@googlegroups.com>
Sent: Sunday, September 15, 2013 4:39 PM
Subject: Re: *WoodKiln* Re: Synthetic Shimaoka Nami Jiro cone 10.

[Mark Issenberg]

I do have Barnard, so can I use this clay in the Shimaoka, also I have some Guan mixed up , just used a fork to get it back to a glaze.

Guan

Feldspar 70

Silica  20

Whiting  15

Im thinking I should mix up a bunch of batches using different Feldspars

 

Mark

[Lee]

Mark, I know there is a joke there, but fails to appear on my screen.

What is Guan?   :)

[Jerrold Martisak]

Rick, I hope you have a great firing in Oct.  Best regards, Jerrold Martisak

[Mark Issenberg]

Howdy all, I will be loading  and firing my Manabigama this weekend. I have a crew from Atlanta coming up here to Lookout Mountain. I have all my wood stored in 4x4 x4 metal containers that I move around with my tractor. Trying to decide if I want to reduction cool which will add maybe 8 hrs..

 

Mark Issenberg

Lookout Mountain Pottery

Rising Fawn Ga.

[Lee]

Please share photos!

[Lee]

Guano?