Mondloch on sun 23 feb 03
Hi,
Regarding using an alumina wash on soft bricks...I have a pile of used soft
brick of unknown variety that I was told came out of a glass kiln. They're
medium brown and rather crumbly. I didn't trust them to include them in kiln
building, but they saw easily so I've been cutting them up for peep plugs,
supports for odd shapes et. I've found that they are dramatically stronger
and less crumbly if I dip them in a very, very thin mixture of my kiln wash
(2 part alumia hydrate, 1 part EPK). The wash is soaking in rather then
sitting on the surface. I'm comfortable using these brick split in half for
shelf supports on the top layer of a firing where I never would have before
dipping them.
OK. So let's say a very, very thin alumina wash was used on soft brick for a
salt/soda kiln so that it would be soaking in rather then making a surface
layer on top of the brick. Perhaps there would be less of a tendency for it
to spall off as it would be more integrated with the brick and also it would
be sealing the brick from the salt fumes??
When are they going to invent an IFB with a hard-brick face? I suppose if
it were possible, they would have by now.
Sylvia
Mark & Sylvia Mondloch
Silver Creek Pottery & Forge
W6725 Hwy 144
Random Lake ,Wi 53075
HotArt@silvercreekpottery.com
http://www.silvercreekpottery.com
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