Alan Shulik on wed 4 aug 99
I am new to Raku and would appreciate anyone's advice on the following:
I have had very good luck using Pipenburg Red Bronze Luster as a Raku
glaze. The last time I fired a batch (last week end) I thought it was
probably a bit underfired, although the results were ok, similar to what I
usually achieve, with mottled greens, reds, copper luster patches and
silver highlights. The glaze just looked a little 'bumpy.' Anyway, I
decided to fire them again, so I popped them back into the hot kiln for
another 10 minutes, until the glaze had flattened out completely. Then
reduced them in shredded paper (as ususal). This time, when I removed them
from reduction, about an hour later, the results were unbelievably
beautiful - deep irridescent red-bronze with blue and copper highlights.
This, I expect, is what it is supposed to be all the time.
Do you think I am just routinely underfiring my glazes, or does firing them
twice and reducing them twice impart these results???
Anyway, I got some great stuff here!
Alan
Karen Shapiro on fri 6 aug 99
Hi Alan,
I would guess that you are underfiring. I do lots of raku and don't find
"double-firing" to give any different effects -- in fact, there's more
possibility of cracking.
Try firing higher rather than refiring.
Karen in Sonoma
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