pigment for porcelain

rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

Iron oxide. A bucket of rusty nails.... I'm only half way joking here.
Iron oxide is easy to come by. If you don't want to go through your local
ceramic supply business, there are many online that you can order from but
if you only want a small amount I would recommend finding a near by public
ceramics studio (check colleges/schools) and asking them if they can sell
you a pound.


"Hul Tytus" wrote in message
...
rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish
tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

Try Guerra Paint & Pigment
510 E 13th St, New York, 10009
(212) 529-0628
www.guerrapaint.com

They have a very large stock of dry pigments!



On Mon, 23 Apr 2007 15:02:31 GMT, Hul Tytus wrote:

rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

"Hul Tytus" wrote in message
...
rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish
tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

At 1200F, it's not true porcelain (clay). That matures at about 2200F. It
doesn't use titanium oxide for white, either - it's naturally white from its
main ingredient kaolin. Are you talking about porcelain enamel, such as is
used for coating gold crowns? If that's the case, you wouldn't simply add a
pigment; you'd need to fire it with some brownish enamel mixed in, then
regrind it before use. But various shades of off-white enamel are available
to those in the dental industry - why reinvent the wheel?

Andrew Werby
www.unitedartworks.com

Hul Tytus wrote:
rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

I assume you mean porcelain enamel.
What are you coating? copper?


Standard body or glaze pigments from a hobby store will work. There are
a large number of pigments available and you can add combinations until
you achieve the desired results. - for tinting - start with a small
fraction of a percent.
You need to mix the pigment in well.

You will need to experiment to achieve the desired results.

Iron oxide is a bit pink rather than brown. Maybe iron oxide & another
pigment or two.

Hul

In rec.crafts.pottery DKat wrote:
Iron oxide. A bucket of rusty nails.... I'm only half way joking here.
Iron oxide is easy to come by. If you don't want to go through your local
ceramic supply business, there are many online that you can order from but
if you only want a small amount I would recommend finding a near by public
ceramics studio (check colleges/schools) and asking them if they can sell
you a pound.


"Hul Tytus" wrote in message
...
rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish
tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

Thanks, I'll take a look.

Hul

In rec.crafts.pottery Russell wrote:

Try Guerra Paint & Pigment
510 E 13th St, New York, 10009
(212) 529-0628
www.guerrapaint.com

They have a very large stock of dry pigments!



On Mon, 23 Apr 2007 15:02:31 GMT, Hul Tytus wrote:

rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

Yes, porcelain enamel. It will coat steel. Local hobby stores would be a
simple solution - thanks.

Hul

In rec.crafts.pottery Gregg wrote:
Hul Tytus wrote:
rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul

I assume you mean porcelain enamel.
What are you coating? copper?


Standard body or glaze pigments from a hobby store will work. There are
a large number of pigments available and you can add combinations until
you achieve the desired results. - for tinting - start with a small
fraction of a percent.
You need to mix the pigment in well.

You will need to experiment to achieve the desired results.

In article ,
says...
Thanks, I'll take a look.

Hul

In rec.crafts.pottery Russell wrote:

Try Guerra Paint & Pigment
510 E 13th St, New York, 10009
(212) 529-0628
www.guerrapaint.com

They have a very large stock of dry pigments!



On Mon, 23 Apr 2007 15:02:31 GMT, Hul Tytus wrote:

rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul



if your working to experiment, use 6 table spoons of milk of magnisia,
with 1/4 teaspoon of borax and 4 table spoons of gum arabic into a cup
of water... this will fire stain porceline a bare off white tan colour,
much like old bone, test this, i get very unpredictable results using
non-standard chemicals..

pepto bismol is a good bismuth (nrown-purple) source and some antiacid
tablers make for good opaquing / whitener sources (a couple of brands
are nothing but pressed kaolin and flavoring)

In article ,
says...
Thanks, I'll take a look.

Hul

In rec.crafts.pottery Russell wrote:

Try Guerra Paint & Pigment
510 E 13th St, New York, 10009
(212) 529-0628
www.guerrapaint.com

They have a very large stock of dry pigments!



On Mon, 23 Apr 2007 15:02:31 GMT, Hul Tytus wrote:

rec.crafts.pottery, rec.crafts.jewelry, sci.materials.ceramics
pigment for porcelain

Any suggestions on a pigment to give an off-white or slightly brownish tint
to a porcelain (about 1200 degf) that uses titanium oxide for white? A
source for small quantities would be helpful too.

Hul


A GOOD article on non standard glaze and pigments sources...

http://www.ceramicstoday.com/article..._materials.htm