I've been looking at the idea of using a soda ash wash to obtain some satin sheens and ideally introduce some flashing. I can wood fire a couple of times a year but I generally only have access to a gas reduction kiln at the studio I go to and am hoping I can appIy this technique to get some different effects. I know that experimenting and trying things out is the best way to see how this adapts to a particular environment and I intend to do that but hoping I can gather a little more informat
I have been using soda ash and/or baking soda solutions sprayed on areas of bisque and green ware for more than 10 years.
The fired color surface depends on the clay body.
the appearance change of the fired surface is more a change in the value of the surface color of the fired clay body; generally the color becomes more dark or stronger of the orange and yellow surfaces when treated with the soda application.
a very white porcelain surface will show a faint graying in the whit