[Clayart] Getting Orange Peel texture using only soda

[Robert Harris]

I should have said. We all use porcelain. This may be why the orange peel
is subtler. It’s definitely there, and nice, though!

Jamie did say that the orange peel effect was best on the raw clay (he
throws), no slip etc. he does put his most orange-peely pieces on the
outside of the stack so that it is most likely to catch the soda. I.e in a
direct line from the spray ports - this definitely helps. I should mention
that this is an  internal hard brick downdraft kiln. It is probably a
little bigger than Helen’s 18 CuFt kiln though not by much. They use 3lbs
of soda dissolved in 3 gallons of water - this kiln is well used and has
significant build up of soda on the hard brick. There are 8 spray ports - 4
in the front (top and bottom on either side of the soft brick door) and 4
in back. Each port is sprayed into 3 separate times (at least or until the
soda runs out. As I say they use a small pumped garden sprayer - each port
gets about 20-30 seconds each time). Sarah does wait about 10-15 minutes
between each round of spraying (all 8 ports, wait, repeat, repeat again)
and feels the slow build up helps the orange peel effect. Then as I say,
they both shut the kiln off ASAP after the last round of spraying. (Indeed,
if anything let it cool fast).

On Tue, May 8, 2018 at 5:33 PM L TURNER <magnolia.mud.list at gmail.com> wrote:

> On Tue, May 8, 2018 at 8:52 AM, Robert Harris <robertgharris at gmail.com>
> wrote:
>
> >
> >
> > I’ll ask more next time I see them.
> >
> >
>
> Robert,
>
> Ask about the clay body being used, especially about grog and coarse clay
> and/or sand particles.  A casual review of the stoneware with orange peel
> seems to also have a coarse clay body relative to the smooth clay bodies
> such as b-mix and porcelain.
>
> LT
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