mel jacobson on tue 28 oct 03
i have put 25x4* porcelain slip on about
twenty plates to test my iron red on a
white background.
you have inspired me to test more slips.
thanks.
mel
and, yes, a big hammer for old hard drives it is.
good info.
*alfred porc.
25 percent of each
silica
china
fels
ball
if this is b mix, well i do not know.
it cannot be far behind.
it works great as a slip.
1/2 cup each in a blender with water.
mix.
From:
Minnetonka, Minnesota, U.S.A.
web site: my.pclink.com/~melpots
or try: http://www.pclink.com/melpots
new/ http://www.rid-a-tick.com
wayneinkeywest on wed 29 oct 03
A stupid newbie question (feel free to laugh)
Could the formula below be used as a "porcelain" claybody, with the addition
of less water?
I haven't gotten (ordered, but not received) the books on claybodies and
glazes yet, so until then, I'm trying to aquire knowledge through osmosis
:>)
Wayne Seidl
> i have put 25x4* porcelain slip on about
> twenty plates to test my iron red on a
> white background.
>
> you have inspired me to test more slips.
> thanks.
> mel
> and, yes, a big hammer for old hard drives it is.
> good info.
>
> *alfred porc.
> 25 percent of each
> silica
> china
> fels
> ball
> if this is b mix, well i do not know.
> it cannot be far behind.
> it works great as a slip.
> 1/2 cup each in a blender with water.
> mix.
Daniel Dermer on wed 29 oct 03
Just curious...
What sort of c10 iron red glaze are we talking about --
Shaner's Red, Ohata Red (Kaki)?
I've found Shaner's Red to be pretty yucky (light-
brown/mustardy) on B-MIX and other porcelain-type
clays. On the other hand, I really like Shaner's Red
on stoneware clays when I want that semi-matt "brick
red" color with iron spotting, etc. Also gives a nice
olive green color when overlapped with a Rhodes32 type
glaze (Mamo/StoneyMatt/etc.)
However, a c10 iron red like "Ohata Red" does indeed
look great on porcelain.
-Dan
http://pages.sbcglobal.net/ddermer
for comparison, both glazes have similar ingredients
but in very different proportions:
Shaner's Red c10 R matt
45.70 Custer Feldspar
3.70 Talc
21.50 EPK
3.50 Bone Ash
18.70 Whiting
5.40 Red Iron Oxide
1.90 Bentonite
Ohata Red/Kaki
Custer 43.90
Silica 19.51
Kaolin 5.69
Whiting 6.5
Bone Ash 8.94
Red Iron Oxide 9.76
wayneinkeywest on wed 29 oct 03
Dave, thanks for your reply.
(This is going to sound ridiculous.) It didn't occur to me until a
conversation i had with the Mayor recently that I could actually make my own
clay. D'oh!!
Last week, I went through the archives, copied all the titles (like Hamer's)
I could find on glazes and claybodies; went through past issues of ClayTimes
and PMI and CM and all their ads, and got more references (but missed the
three reviews on crystal glazes darn it!), then went and ordered them all.
They should start arriving next week, and I should have enough reading for
the next few months or so.
How does one "sneak" an extra 50 or so books into the house? Behind a
couple dozen roses, I think!
Wayne Seidl
making up for lost time.
> Wayne,
> Logical question! :-)
> Yes, this is a claybody recipe...for throwing...not a casting slip
> recipe. Most folks add something to this to make it a bit more
> plastic...say bentonite...or some organic material like an acrylic polymer
> (industrial approach). Bentonite causes shrinkage issues though.
> What book are you going to use to study clay making?
> Dave Finkelnburg
Hank Murrow on wed 29 oct 03
Dear Dan;
If you want Shaner's to go red over porcelain, just add a little iron
to make up for what the body is not contributing. Cool slow also.
Cheers, Hank in Eugene
On Wednesday, October 29, 2003, at 11:02 AM, Daniel Dermer wrote:
> Just curious...
> What sort of c10 iron red glaze are we talking about --
> Shaner's Red, Ohata Red (Kaki)?
>
> I've found Shaner's Red to be pretty yucky (light-
> brown/mustardy) on B-MIX and other porcelain-type
> clays. On the other hand, I really like Shaner's Red
> on stoneware clays when I want that semi-matt "brick
> red" color with iron spotting, etc. Also gives a nice
> olive green color when overlapped with a Rhodes32 type
> glaze (Mamo/StoneyMatt/etc.)
>
> However, a c10 iron red like "Ohata Red" does indeed
> look great on porcelain.
Lee Love on thu 30 oct 03
A friend of mine was not getting the results he wanted from his iron red
so he decided not to use it. Two things I
noticed: the example of the old work he showed me, was on a
dark stoneware. Nice, strong red. The new results were on his
white body: half mashiko clay, half porcelain. It was an ugly
brown color.
I had also
recently tested Tomato red. My test tiles typically
have slip on them: white, ocher(heavy iron), light iron,
gosu/cobalt and pink. What I noticed on my test
tiles, was that the Tomato was red on the iron slips, but not on the
lighter clay body or the white slip.
--
Lee In Mashiko, Japan
http://Mashiko.org
Web Log (click on recent date):
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