
Experiments with playa dust on porcelain at 2200 degrees!
As a hobbyist potter, I wanted to see how playa dust behaved when firing it in my kiln. After some experiments, here's the best I could do using JUST playa dust as a coating on top of the porcelain disks.
I found that by sifting it very fine and mixing with enough water to get two thin coats, I could achieve this surface. It's VERY finicky, too little (off to the left) and it's patchy, then the thicker it gets it's very glossy and beautiful, but too thick and it clumps up and fails. It's a very small difference.
Further experimentation is required, with other additives to get it to adhere a bit better, but it's actually pretty impressive that it melts into a glaze-like coating at Cone 6 (2200-ish degrees F).
The more you know! (Also, wear a fucking n95 mask in dust storms please, playa dust has a high silica content and that shit gets into your lungs and DOES NOT COME OUT.)