Sometimes it happens that I want to alter a glaze after it has been made up and the water added. Say, for instance, I have a bucket of glaze that I know is 15% silica and I want to experiment with it by adding another 5% silica to make it 20%. At the dry stage this is no problem, but now that it has the water in it I have to figure out how much of it's weight is water versus the formerly dry material.
I'm thinking:
Measure the specific gravity of the mixture. Lets assume it is 1
Sometimes it happens that I want to alter a glaze after it has been made up and the water added. Say, for instance, I have a bucket of glaze that I know is 15% silica and I want to experiment with it by adding another 5% silica to make it 20%. At the dry stage this is no problem, but now that it has the water in it I have to figure out how much of it's weight is water versus the formerly dry material.
I'm thinking:
Measure the specific gravity of the mixture. Lets assume it is 1