Every now and then a glaze catches my attention that I want to explore fully, so I came up with a series of test that will give me the widest range of colours with the least amount of effort and repetition.
I have mixed 2 kg of glaze base (removing the colourant) and sieved it.
Protect your lungs!!
After dividing the glaze into smaller batches ( see bottom of the chart on the top of the post)
I use precision scales to accurately weigh the colouring oxides. As per chart, I need 1% chromium oxide, which is in this case equivalent to 1g.
This is Triaxial A:
Then the fun begins. I use a syringe to accurately measure 15 ml into second row cups, 10 ml into 3rd row, 5 ml into 4th row and none into 5th.