John Hesselberth on thu 28 feb 08
Hi Michael,
Three suggestions. Most likely you are applying the glaze thinner
than you have in the past. This could be due to a harder bisque, a
more watery glaze, or a shorter dip. A thin coat of Waxwing will be a
darker brown just like the color of the glaze when it breaks off
texture or edges. But another possibility is that the batch you are
using has not been thoroughly redispersed with each use. If any
sludge is left on the bottom of the bucket, the composition with
gradually change. That is the main reason we recommend that you
always rescreen before each use. When you pour the glaze out of its
container to put it through a screen you can see whether or not there
is any sludge on the bottom of the bucket. If you think this is a
possibility, mix up a new small batch and see if the problem goes
away. Lastly, be sure your firing to the same cone. If you are firing
a little hotter you might also get this effect. What are your large
witness cones telling you?
Hopefully, you can find the answer somewhere in the above. If not,
write again and tell us more.
Regards,
John
On Feb 28, 2008, at 5:26 PM, Michael wrote:
> Ron,
>
> I'm experiencing a strange issue with Waxing Brown from Master Cone
> 6. I've had much success with
> the glaze in the past, offering deep and variegated color.
> However, recently the glaze is coming out
> flat brown. I've not changed my clay body or firing schedule. And
> this flat brown comes from the
> same glaze batch that was yielding wonderful results a month ago.
>
> Might you have any solutions to get the glaze back on track?
>
> many thanks,
>
> michael
Michael on thu 28 feb 08
Ron,
I'm experiencing a strange issue with Waxing Brown from Master Cone 6. I've had much success with
the glaze in the past, offering deep and variegated color. However, recently the glaze is coming out
flat brown. I've not changed my clay body or firing schedule. And this flat brown comes from the
same glaze batch that was yielding wonderful results a month ago.
Might you have any solutions to get the glaze back on track?
many thanks,
michael
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