Comment

Comment by George Lewter on October 2, 2011 at 5:30pm

Your recipe has the same proportions. It just isn't "normalized" to 100 with the colorants as additions to the 100 g base glaze.  Yours adds to 100 including the red iron oxide.

Comment by Jan Wallace on October 2, 2011 at 4:43pm

Hi George, No i have not seen the article, but i have a love of all things old and rusty. My new studio has a feature wall (behind the teapot) made from old rusty roofing iron. I would like to see the article though as it sound really interesting. I thought I got the recipe from here, but mine is slightly different. It is as follows;

Gerstley Borate         47.8

Talc                        13.0

Silica                       26.1

does not add up to 100

Add:  Red Iron Oxide  13.0

I have found that this glaze is best thinner, as when it is too thick it is very dark brown all over. Where you see the lighter, yellow/green areas it is thinner.

 

 

Comment by George Lewter on October 2, 2011 at 6:37am

Nice, Jan.

Was this inspired by the oil can teapots in Ceramics Monthly from about six months ago? Is it the Floating Red recipe I posted on this network? I ask because I haven't seen this kind of color development on any of my pots. But then again, I don't think I was spraying glazes when I did my experimentation with Floating Red.

Floating Red Cone: 6 Color: multicolored w iron red
Firing: Oxidation Surface: Glossy

Amount Ingredient
55 Gerstley Borate--1999
15 Talc
30 Silica
100 Total

Additives
15 Iron Oxide--Red