Low-temp woodfire slip/glaze recipes?

[Jesse]

Hello, I'm getting set for another earthenware firing in my woodkiln.
This'll be my second low-temp firing using local clay. I'm making
some sculptural stuff, bonsai pots, tajines(morrocan casserole
dishes), planters, ect with this local 'brick clay.' The clay fires
to a nice 'bricky' red, and gets pretty vitrified and tight at cone
1-3. I'm wondering if anyone might have any slip or glaze recipes
they'd like to share in the c06 to c1 range. It'd be better if they
didn't mind some woodash, because this kiln deposits quite a bit on
unprotected pot. Ideas? Thanks, Jesse

[Ann Brink]

Jesse, I can tell you what I've been using for years for my earthenware
oxidation firings. I go to ^05 and sometimes a cone or 2 higher. Take a look
at my blog, go to the index on the right and click on "Pottery-earthenware"
and you'll see some results. I have no idea how wood ash would be with this
glaze.

2-1-1 Glaze

2 parts by weight Gerstley Borate
1 part kaolin
1 part flint
add opacifiers and colorants

My original recipe card says it's a ^6-8 glaze, also ok at ^.05. I found
that at the lower cones it was dryer than I liked (underfired) so I always
add some frit. Below are my notes from a batch I mixed last week:

4 lbs. Gerstley Borate
2 lbs. kaolin
2 lbs. flint
added One and 1/2 cups Frit 3134
1/4 cup Copper carb.
1 heaping tsp.turquoise Mason stain
1/2 Cup superpax. (NOTE: as I say on my blog about this last firing, I'm
going to add another half a cup of Zircopax to the mixture. It was more
transparent than I like over earthenware. I have to admit that on some of my
previous batches I hadn't always kept track of exact amounts of oxides and
opacifiers.)

Another recipe is:

LO FIRE BASE GLAZE

650 gr. feldspar
400 gr. gerstley borate.

I believe this one was not as good a fit (some crazing) on the local
earthenware clay I was using at the time. YMMV

good luck with your firing!
Ann Brink in Lompoc CA
<www.annsgoodies.blogspot.com> (mostly about pottery)

[HAMBONE]

Got any hedge apples? "Osage Orange" leaves bronze metallic fire marks
at about cone 2 & works nice in wood kilns, so I am told.

H A N S E N
Eric Hansen, artist potter
Stone House Studio
Alexandria, Virginia
americanpotter.blogspot.com

[rickma...@comcast.net]

Works at cone 10 in reduction on top of Soldner halo slip.  Should work on almost any clay.
Regular oranges work too!

Rick