I've been working on these slip decorated pots for a couple of months now and finally ran out of slip. In my infinite wisdom I decided to mix up a new recipe that was supposed to be whiter and promptly put it all over these great little wall plates. Guess who should have tested for fit. All the slip flakes right off. So 4 wall plates and 4 large platters later, I now have 2 buckets of my old slip mixed up and aging.
The slip I am using is Robin Hopper's White Slip.
30 g-200
20 EPK
10 OM-4
40 flint
I'll be working on more porcelain cups this week as the slip sets up a bit. It needs to settle for at least a week so that any excess water comes to the top of the bucket and can be drained off. The slip needs to be quite thick, almost like hard peak egg whites so that it hods its form on the side of vertical surfaces. It grabs on to this clay so well that it can actually rip off the surface if it shrinks too much. From one extreme to another I guess.
I made 20 cups today. They have set up a bit and have already had the roulettes rolled on and are drying as always, upside down. I try to keep the band right at the form change so that the roulette creates a little lip or shelf at the base of the side. This will catch ash in the wood firing and hopefully pool a little. They'll get handles later in the week once they can be trimmed.
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