Angela Davis on mon 1 sep 08
Laguna, 3 years ago. came from Axner's,
was a full bag.
Thanks Roy, I'll be interested in what you come up with.
Speaking about the running on the tile with bone ash;
To be fair the first test tile, (same recipe before the ash was added)
did not get a very thick layer of glaze. It might have run too if
it had. But it was the one that etched.
Angela Davis
In Homosassa
----- Original Message -----
From: "Ron Roy"
To:
Sent: Sunday, August 31, 2008 11:45 PM
Subject: Re: Iron glaze acid test-- recipe repeated.
> Hi Angela,
>
> I'm working on this but I need to know what G Borate you are using - when
> did you buy it and from whom?
>
> RR
>
>
>
>>I think there is a good chance that would help Randy,
>>the bright red coloring was brought out by the bone ash.
>>Worth trying with the feldspar change, maybe a little more EPK?
>>
>>What I do when I'm doing a non-functional piece and want no running
>>is to fire to cone 5 with a 5 min hold. The glazes I use stay put.
>>
>>I have had several requests from potters who only saw the acid test for
>>this
>>glaze
>>and missed my post with recipe. So here it is again;
>>
>>Here is the recipe as I mixed it, Revised Touchstone.
>> cone 6 ox, no controlled cooling.
>>(but my kiln has some extra insulation)
>>
>>Nyph sy 196.1
>>Gerst Borate 313.7
>>EPK 49
>>Talc 147.1
>>Silica 294.1
>>total 1000
>>
>>Special RIO 147.1 (from Ceramic Supply, NJ)
>>bone ash 50
>>
>>I still have had no comments on why the bone ash version had no acid
>>etching
>>but the version with out did. My guess is the better melt.
>>
>>Angela Davis
>
> Ron Roy
> 15084 Little Lake Road
> Brighton, Ontario
> Canada
> K0K 1H0
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