Randy McCall on sat 6 dec 03
I tried the above glaze using a small cone 6 in kiln sitter. What I got was
a nice semi transparent smooth white matt glaze. I am very particular about
weighing glaze chemicals. Was the firing too low?
Randy
Charles Moore on sat 6 dec 03
Randy,
I am not sure exactly which Chappell's "semi gloss" glaze that you are
talking about. I use his "Semi Gloss-7," which is actually a soft, vellum
matt (not at all glossy). I have reformulated it without Gerstley Borate
and will be willing to so send the re-formulation off-list. Try it with a
variety of oxides. My SG-7 + 0.5% cobalt carbonate, while it produces a
soft lavender that is not a color I particularly like, brings enthusiastic
response from customers. Ah, well.
Charles
Sacramento
----- Original Message -----
From: "Randy McCall"
To:
Sent: Saturday, December 06, 2003 7:48 AM
Subject: Chappell's clear semi gloss Cone 5 ?
> I tried the above glaze using a small cone 6 in kiln sitter. What I got
was
> a nice semi transparent smooth white matt glaze. I am very particular
about
> weighing glaze chemicals. Was the firing too low?
>
>
> Randy
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
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Randy McCall on sun 7 dec 03
Charles thanks for responding. The glaze I was tried was the SG7 semi gloss
from Chappell. What I am looking for is a clear satin at Cone 6 oxidation.
Trying to get a semi transparent light gray green glaze with some depth to
it.
Any recipe you can send me I would greatly appreciate.
----- Original Message -----
From: "Charles Moore"
To:
Sent: Saturday, December 06, 2003 10:57 PM
Subject: Re: Chappell's clear semi gloss Cone 5 ?
> Randy,
>
> I am not sure exactly which Chappell's "semi gloss" glaze that you are
> talking about. I use his "Semi Gloss-7," which is actually a soft, vellum
> matt (not at all glossy). I have reformulated it without Gerstley Borate
> and will be willing to so send the re-formulation off-list. Try it with a
> variety of oxides. My SG-7 + 0.5% cobalt carbonate, while it produces a
> soft lavender that is not a color I particularly like, brings enthusiastic
> response from customers. Ah, well.
>
> Charles
> Sacramento
>
>
> ----- Original Message -----
> From: "Randy McCall"
> To:
> Sent: Saturday, December 06, 2003 7:48 AM
> Subject: Chappell's clear semi gloss Cone 5 ?
>
>
> > I tried the above glaze using a small cone 6 in kiln sitter. What I got
> was
> > a nice semi transparent smooth white matt glaze. I am very particular
> about
> > weighing glaze chemicals. Was the firing too low?
> >
> >
> > Randy
> >
> >
> ____________________________________________________________________________
> __
> > Send postings to clayart@lsv.ceramics.org
> >
> > You may look at the archives for the list or change your subscription
> > settings from http://www.ceramics.org/clayart/
> >
> > Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>
Ron Roy on sun 7 dec 03
Hi Randy,
I need to look at that glaze to be able to say if it needs more fluxing -
sounds like you only got to cone 5 - ALWAYS fire with at leasy one large
cone - you can see through a spy hole and even better - at all levels till
you get used to your kiln - always good to know where you have been.
Send me the recipe off list so I can see the molecular formula
ronroy@total.net (Ron Roy)
RR
>I tried the above glaze using a small cone 6 in kiln sitter. What I got was
>a nice semi transparent smooth white matt glaze. I am very particular about
>weighing glaze chemicals. Was the firing too low?
>
>
>Randy
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
Earl Krueger on sun 7 dec 03
On Saturday, Dec 6, 2003, at 07:48 US/Pacific, Randy McCall wrote:
> I tried the above glaze using a small cone 6 in kiln sitter
Randy,
Using a cone 7 bar my kiln sitter will trip when a large cone 5 is
about halfway down. I use this as a "Hey were getting close" warning,
punch the button back on and then closely watch till cone 6 is about
half way over, then soak for a half hour. I am now consistently
getting cone 6 tip just touching the clay pattie used to support the
cones. This procedure also evened out the kiln so that cone packs
everywhere all come out about the same.
I think you would find many references in the archive about how kiln
sitters can vary in their response and that you should use them only as
a safety device. Putting multiple cone packs in the kiln has really
helped me get better results.
Maybe someday I'll adjust my kiln sitter. Maybe not.
Earl...
Bothell, WA, USA
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