lili krakowski on fri 14 nov 03
Yes, glazes will freeze, and all they need is thawing and really good =
sieving. There may be some glazes that do not take freezing but I have =
not met one. Do remember the thing has to be thawed thoroughly. Not =
into sludge, but into original liquid state.
As to bottom of barrel. I do not know if any of this applies to =
original inquirer, but...
If glazes are not sieved before use, and have not been used in a few =
days, there will be segregation in the mix. Professionals who have =
glaze in thirty gallon pails have mixers that allow them to really =
really really stir things up. Those of us with five gallon buckers of =
glaze are likely to find that some stuff settles into the corners and =
unless we EMPTY the bucket thoroughly before using the glaze and LOOK if =
there is anything stuck are likely to have sorrows untold.
Also there are, in hurried classroom situation people who just take some =
glaze off the top. With that they are removing some ingredients. By =
the time the bottom of the barrel is reached the glaze composition is =
different. And as glazes settle out at different rates the fact that =
the glaze was screened or sieved (same difference, different usage, is =
all) yesterday makes no never mind.
THEN: I follow Harry Fraser's suggestion to have 3% bentonite and a bit =
of calcium chloride or epsom salts in ever glaze. The exception: slip =
glazes, or those meant for application on raw clay, which both have lots =
and lots and lots of clay to keep things suspended. It really works for =
me. And of course, as we all are learning too soon this winte, calcium =
chloride also helps keep glazes from freezing!
Lee Valley whose tools we all praised, also sells extremely inexpensive =
nail brushes. They say they are the ones surgeons use to scrub up. I =
not only use them in bathroom and kitchen, but they are SUPER for =
scrubbing slips and glazes through sieves.
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