Jason Hooper on wed 27 feb 08
I ran a few color tests with the Waterfall Brown base from MC6G and I'm
seeing crazing despite the fact that it has a pretty low COE in the
first place. The specific color test was 1% chrome oxide instead of the
12.5% RIO, and the crazing is quite dense.
I use Laguna B-Mix 5 fired to about cone 5 1/2 with slow cooling, and
I've had to adjust several glazes to lower their COE because of crazing
on the B-Mix.
I've not seen any other people mention problems adjusting glazes to fit,
so I'm wondering if I'm the odd one out, or it's the clay, or people
aren't worried about the crazing.
I was prompted to ask because I was thinking of tweaking the Waterfall
base, and saw that Ron & John say in their book that the COE is already
low, especially without the iron. Time for a sanity check.
cheers,
Jason
--
Jason Hooper
http://www.jjhooper.com
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