Alisa Liskin Clausen on wed 6 oct 10
Hi Fred
As you know, sometimes failures in our usual routine can reveal
results which are better than our expectation. I can understand you
wanted to duplicate the new result with one firing,however, yup may
have discovered a result worth two.
In my experience with a similar process where I made plates with a
large imprint from a sunflower seed head, I could not get the RIO to
come through a white mat glaze. There was no trace of it at all, to my
surprise and disappointment. I re fired them just like you, with a
slippery wash of iron and fired. They looked OK but it was a plan B
so I too, looked to a way to fire them once with the same effect.
If you wash the greenware, I would be careful, because in the process
you will unlikely lower the raised surfaces from the sponge or brush.
this will reduce the depth of the impression grooves tand the
definition will be less. it is also just sort of messy and the RIP
starts to color the low areas as well, Again making for less
definition.
SO, I think the best result comes from a two firing process. I
thinned the glaze right on the impressed area as not to fill it in
more than necessary, and painted a normal thickness on the rest of the
plate. That way, I could get the RIO to grab better on the impression
and it still have a good glaze surface on the rest of the plate. My
goal was to get a good resolution from the RIO and I had to fire
twice. I do not have a white glaze which does not seem to absorb the
RIO when it is under it. Maybe that is the key but in any case, would
still require a lot of time, for testing. Not an answer how to glaze
fire once but how I too, needed to fire twice.
Best Regards from Alisa in Denmark
--
Alisa Liskin Clausen
Troldskovvej 42
DK 6200 Aabenraa
Denmark
(45) 20 24 66 40
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