Burness Speakman on fri 10 oct 03
From your book. They are very green. At least that is what I am getting.
Could copper in the kiln be turning them that way? or Too low firing? or To
thickly applied? or Ingredients? or Hmmmm?
Your input?
Bunny
Ron Roy on tue 14 oct 03
Hi Bunny,
I'm sending this to John - he has much more experience at cone 6 - he will
know - RR
>From your book. They are very green. At least that is what I am getting.
>Could copper in the kiln be turning them that way? or Too low firing? or To
>thickly applied? or Ingredients? or Hmmmm?
>
>Your input?
>
>Bunny
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
John Hesselberth on tue 14 oct 03
On Tuesday, October 14, 2003, at 05:13 PM, Ron Roy wrote:
> I'm sending this to John - he has much more experience at cone 6 - he
> will
> know - RR
Hi Bunny,
Aw shucks, I wanted to see what Ron had to say. I would look in 2
places for starters. Rutile can sometimes cause cobalt to go green. It
certainly does in the zinc-based glaze we illustrate on pages 100-101,
but it can in other situations also. Since there are a large number of
different grades/varieties of rutile being sold, yours may behave
differently than mine. If there is any in the glaze you are having
trouble with--and there is in most of our glazes--cut it in half and
give it a try at that level.
Secondly, there has been some bad cobalt reported at times. I tried to
find some this last summer and couldn't, but I'm certain it was there a
while ago and still may be in the inventory of some of our suppliers.
Try some cobalt from a different supplier--and not the cheapest
supplier you can find. Rather go for one whose quality you trust.
Regards,
John
http://www.frogpondpottery.com
http://www.masteringglazes.com
David Hendley on tue 14 oct 03
The REAL reason Ron Roy is sending this to John is because
he abhors blue glazes.
His mother made him wear a blue sailor outfit when he was a
child, and he has hated blue ever since.
Never, never ask Ron Roy about blue glazes. Don't even
think about showing him one.
David Hendley
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
From: "Ron Roy"
To:
Sent: Tuesday, October 14, 2003 4:13 PM
Subject: Re: Ron Roy, about my blues?
> Hi Bunny,
>
> I'm sending this to John - he has much more experience at cone 6 - he will
> know - RR
>
Lee Love on wed 15 oct 03
My favorite color is natural indigo blue.
--
Lee In Mashiko, Japan
http://Mashiko.org
Web Log (click on recent date):
http://www.livejournal.com/users/togeika/calendar
Burness Speakman on wed 15 oct 03
Thats understandable. OK, will do - not. Blue is ugly Ron!
Bunny
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