Martin Howard on wed 11 jul 01
Do Clayarters know of a good source of stain recipes?
I ask because I have many bottles and bags of mineral oxides which I bought
to make my own colourants in glazes, but I have been seduced to use stains
:-) I like the idea that the colour of the slip or glaze in the bucket or on
the pot is more or less what you get from the kiln.
Now I would like to use those original oxides, to deepen bought stains, and
create new ones. I would also just like to know what I am in fact using,
when I add stains to a transparent or opaque glaze.
The Potters Palette gives a good introduction to creating ones own cross
blends of oxides and stains, but does not give any clues as to the
constitution of the stains.
Even if we knew the formulae, it would probably not be worth our while
making up our own, but we could modify some to advantage.
Martin Howard probably being too inquisitive for his own good at
Webb's Cottage Pottery
Woolpits Road, Great Saling
BRAINTREE, Essex CM7 5DZ
England
martin@webbscottage.co.uk
http://www.webbscottage.co.uk
Valerie Hawkins on wed 11 jul 01
I've been looking through a book by James Chappell titled 'The Potter's
Complete Book Of Clay and Glazes. It has a chapter on formulating stains.
I think that Robin Hopper's 'The Ceramic Spectrum' might also be a source of
information on this topic.
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Martin Howard
Sent: Wednesday, July 11, 2001 2:00 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Stain recipes
Do Clayarters know of a good source of stain recipes?
I ask because I have many bottles and bags of mineral oxides which I bought
to make my own colourants in glazes, but I have been seduced to use stains
:-) I like the idea that the colour of the slip or glaze in the bucket or on
the pot is more or less what you get from the kiln.
Now I would like to use those original oxides, to deepen bought stains, and
create new ones. I would also just like to know what I am in fact using,
when I add stains to a transparent or opaque glaze.
The Potters Palette gives a good introduction to creating ones own cross
blends of oxides and stains, but does not give any clues as to the
constitution of the stains.
Even if we knew the formulae, it would probably not be worth our while
making up our own, but we could modify some to advantage.
Martin Howard probably being too inquisitive for his own good at
Webb's Cottage Pottery
Woolpits Road, Great Saling
BRAINTREE, Essex CM7 5DZ
England
martin@webbscottage.co.uk
http://www.webbscottage.co.uk
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Fabienne Micheline Cassman on thu 12 jul 01
At 06:59 AM 07/11/2001 +0100, you wrote:
>Do Clayarters know of a good source of stain recipes?
Hello Martin,
"Contemporary Ceramic Formulas" by JW Conrad has recipes for raw stains on
pp.84-107. It was published in 1980 though. Perhaps someone else who
knows stains and the book could comment on how "contemporary" it still is.
Cheers,
Fabienne
--
Milky Way Ceramics http://www.milkywayceramics.com/
Yes, I have learned from my mistakes...
I can reproduce them exactly.
David Hewitt on thu 12 jul 01
In message , Valerie Hawkins writes
>I think that Robin Hopper's 'The Ceramic Spectrum' might also be a source=
> of
>information on this topic.
>
I can confirm that Robin Hopper's book does contain a few pages on
stains, how they are made and the oxides involved for different colours,
but not the amounts. It makes interesting reading, pages 130 to 134 in
my copy.
David
--
David Hewitt
David Hewitt Pottery ,
7 Fairfield Road, Caerleon, Newport,
South Wales, NP18 3DQ, UK. Tel:- +44 (0) 1633 420647
FAX:- +44 (0) 870 1617274
Web site http://www.dhpot.demon.co.uk
Steve Mills on thu 12 jul 01
Martin, I've had this knocking around my stuff for quite a while, but
never did anything with it.
Hope it's of some use.
Some underglaze/ stain recipes from the January 1952 issue of Ceramic
Industry (excluding those with lead) I do not claim to have any great
knowledge of some of the more obscure ingredients!:
VICTORIA GREEN
36% Potassium Dichromate
20 Flint
18 Fluorospar
26 Whiting
CRIMSON
20.8% Flint
22.9 Whiting
6.6 Calcium Sulphate
4.4 Fluorospar
43.7 Tin Oxide
1.6 Potassium Dichromate
TURQUOISE
18.2% Copper Sulfate, Calcined
36.4 Slaked Lime
36.4 Flint
9.0 Sodium Chloride
BLUE GREEN
41.8% Cobalt Oxide
19.2 Chrome Oxide
39.0 Aluminum Oxide
PEA GREEN
36% Potassium Dichromate
12 Fused Calcium Chloride
20 Flint
20 Whiting
12 Fluorospar
DARK GREEN
20% Potash Feldspar
10 China Clay
20 Flint
25 Potassium Dichromate
25 Chrome Oxide
OLIVE GREEN
37% Flint
15 Zinc Oxide
18 Borax
22 Chrome Oxide
8 Cobalt Oxide
LIGHT BLUE
25% Cobalt Oxide
25 Zinc Oxide
50 Alumina
VIOLET BLUE
15% Cobalt Oxide
28 Magnesia
57 Alumina
BLACK
43% Iron Oxide
43 Chrome Oxide
10 Manganese Dioxide
4 Cobalt Oxide
DARK PINK
19.0% Flint
17.1 Whiting
47.6 Tin Oxide
7.6 Fluorospar
4.8 Selenium
2.9 Potassium Dichromate
1.0 Iron Chromate
END
Steve
Bath
UK
In message , Martin Howard writes
>Do Clayarters know of a good source of stain recipes?
>
>I ask because I have many bottles and bags of mineral oxides which I boug=
>ht
>to make my own colourants in glazes, but I have been seduced to use stain=
>s
>:-) I like the idea that the colour of the slip or glaze in the bucket or=
> on
>the pot is more or less what you get from the kiln.
>
>Now I would like to use those original oxides, to deepen bought stains, a=
>nd
>create new ones. I would also just like to know what I am in fact using,
>when I add stains to a transparent or opaque glaze.
>
>The Potters Palette gives a good introduction to creating ones own cross
>blends of oxides and stains, but does not give any clues as to the
>constitution of the stains.
>
>Even if we knew the formulae, it would probably not be worth our while
>making up our own, but we could modify some to advantage.
>
>Martin Howard probably being too inquisitive for his own good at
>Webb's Cottage Pottery
>Woolpits Road, Great Saling
>BRAINTREE, Essex CM7 5DZ
>England
>
>martin@webbscottage.co.uk
>http://www.webbscottage.co.uk
--
Steve Mills
Bath
UK
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