threereeds1 on thu 21 feb 08
----- Original Message -----
From: "threereeds1"
To: "John Britt"
Sent: Wednesday, February 20, 2008 11:31 PM
Subject: Re: Re: Any use of Watral Purple?
> Hi John and all,
>
> Glad you are doing the evening shift.
> To answer your inquiry about light reduction;
> Clear flame from venturies firing propane, upper spy hole gave good tongue
> of pressure but NO flame color.
> I am saying I got light reduction from the body color of the white
> stoneware and the result of the iron reds and Candace black
> in that load. No oil spot and reds could have been brighter. I was
> trying to group glazes in that load that perform in O2 atmosphere. Ended
> with one hour slower (^9 to10) to 2380 and damper very open. This took
> nine hours from cold kiln. Gas pressure was backed way off and The kiln
> dropped to 1980 in two hours. I held it at 1980 for two more hours and
> shut down. Everything after I hit cone 9 was surely in O2. Same with the
> previous firing.
>
> John, and anyone with The Complete Guide to High- Fire Glazes.
> Page 95, tile 24 shows a color sample with similar saturation and
> intensity. My result was pinker in color.
>
> If that much difference in color expression can come from finishing in
> reduction... this would surprise me.
>
> Thanks for the help,
> Tom King
>
>
> From: "John Britt"
>
>
>> Tom,
>>
>> I usually try not to commment so that others will give their experiences
>> but I am wondering what light reduction means? I think I got the best
>> color from 02 and R2. Both cycles had pretty good reduction soaks at
>> peak.
>>
>> Don't know if other had the same experience?
>>
>> As for discussing recipes on clayart...I think that is what clayart is
>> all
>> about! Limiting discussion is counterproductive. Glaze Free Trade rules!
>>
>> Waiting to hear,
>>
>> John Britt
>>
>
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