Lajos Kamocsay on wed 22 jan 03
Hello,
I'd like to mix about 5 gallons of the following ^6 glaze from digitalfire.com:
G1214W CLEAR LOW EXPANSION
WOLLASTONITE 10.00 CaO 0.57*
FRIT 3134 25.00 K2O 0.02*
PIONEER KAOLIN 25.00 Na2O 0.17*
FLINT 25.00 Al2O3 0.35
F-4 FELDSPAR 15.00 B2O3 0.24*
SiO2 2.94
How much dry material would make about 5 gallons for dipping application?
Thanks,
Lajos
Dannon Rhudy on thu 23 jan 03
...........how much dry glaze makes 5 gallons?......
Approximately 10,000 grams of dry material will make
about 5 gallons wet mixed. Depends slightly on the
glaze. Some like it thin (shino) some like it thicker.
If you want it to fit comfortably in a 5 gallon bucket
and still leave room for dipping larger pieces,
try 8,000 grams dry.
regards
Dannon Rhudy
Pat Rogers on thu 23 jan 03
what color is this glaze?
>>> clayart@PANKA.COM 01/23/03 12:02AM >>>
Hello,
I'd like to mix about 5 gallons of the following ^6 glaze from
digitalfire.com:
G1214W CLEAR LOW EXPANSION
WOLLASTONITE 10.00 CaO 0.57*
FRIT 3134 25.00 K2O 0.02*
PIONEER KAOLIN 25.00 Na2O 0.17*
FLINT 25.00 Al2O3 0.35
F-4 FELDSPAR 15.00 B2O3 0.24*
SiO2 2.94
How much dry material would make about 5 gallons for dipping
application?
Thanks,
Lajos
______________________________________________________________________________
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.
Marcia Selsor on thu 23 jan 03
That glaze looks like you could get 10,000 grams into a bucket because
of the frit which is usually dense.
It really depends on what chemicals you are using. To be on the safe
side, try 8,000.
I kept 5 gallon buckets in the shop at school and usually put 8,000 gran
batches in them. If an ingredient is particularly fluffy such as wood
ash or volcanic ash, 8,000 should be ok.
I have a ^03 majolica glaze which 10,000 is half a bucket, It is mostly
frit.
Best wishes,
Marcia
Lajos Kamocsay wrote:
> Hello,
>
> I'd like to mix about 5 gallons of the following ^6 glaze from digitalfire.com:
>
> G1214W CLEAR LOW EXPANSION
> WOLLASTONITE 10.00 CaO 0.57*
> FRIT 3134 25.00 K2O 0.02*
> PIONEER KAOLIN 25.00 Na2O 0.17*
> FLINT 25.00 Al2O3 0.35
> F-4 FELDSPAR 15.00 B2O3 0.24*
> SiO2 2.94
>
> How much dry material would make about 5 gallons for dipping application?
>
> Thanks,
> Lajos
>
> ______________________________________________________________________________
> 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.
>
--
Tuscany in 2003
http://home.attbi.com/~m.selsor/Tuscany2003.html
L. P. Skeen on thu 23 jan 03
You'd need about 10000g.
----- Original Message -----
From: "Lajos Kamocsay"
To:
Sent: Thursday, January 23, 2003 1:02 AM
Subject: how much dry glaze makes 5 gallons?
> Hello,
>
> I'd like to mix about 5 gallons of the following ^6 glaze from
digitalfire.com:
>
> G1214W CLEAR LOW EXPANSION
> WOLLASTONITE 10.00 CaO 0.57*
> FRIT 3134 25.00 K2O 0.02*
> PIONEER KAOLIN 25.00 Na2O 0.17*
> FLINT 25.00 Al2O3 0.35
> F-4 FELDSPAR 15.00 B2O3 0.24*
> SiO2 2.94
>
> How much dry material would make about 5 gallons for dipping application?
>
> Thanks,
> Lajos
>
>
____________________________________________________________________________
__
> 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.
>
David Hendley on thu 23 jan 03
Most people use 10,000 grams (10 kilograms) of dry materials to make
glaze in a 5 gallon plastic bucket.
For most glazes, this really makes only about 3 1/2 gallons of glaze,
but it leaves plenty of room in the bucket for dipping pieces.
For the glazes that I use regularly, I usually make 15,000 gram
batches. This fills the bucket to about 2 inches below the rim. This
doesn't leave much room for dipping, but since I pour all my glazes
it means I don't have to make more for quite a while.
Note that 10,000 grams of glaze will glaze A LOT of pots. Don't
make this much unless you are sure the glaze is reliable and you
really like it.
David Hendley
Maydelle, Texas
david@farmpots.com
http://www.farmpots.com
Snail Scott on thu 23 jan 03
At 10:02 PM 1/22/03 -0800, you wrote:
>How much dry material would make about 5 gallons for dipping application?
Because of your high content of frit and silica (which
don't 'puff up' when wetted like some materials), I'd
guess 10,000 grams would work. That's convenient for
measuring, since all you have to do it move the decimal
point over two spaces. 8,000 grams might leave more of
a margin for error (and mixing), though you'd actually
have to do math!
I like to dry-mix, then add the dry to the water until
the consistency is right and the bucket is full. Then,
if I have extra dry mix, I can save it to add in later
as the glaze gets used up. You do have to be sure you
are dry-mixing thoroughly, though, and watch out for
the dust. (Mix outside, gently, wearing a dust mask.)
-Snail
william schran on thu 23 jan 03
Lajos - Move the decimal place to the right 2 times. Example: 10.00
becomes 1000. This will give you a 10,000 gram batch, about 5 gallons.
Bill
Dave Finkelnburg on thu 23 jan 03
Lajos,
About 12 kg of these dry ingredients will make about 5 U.S. gallons of
this glaze, IF you mix it at a density of 1.4 Kg/L. (Warning -- I have no
idea if that is the right density for this particular glaze!)
Keep in mind, you will need more than a 5-gallon bucket to hold this
much glaze. You can only mix about 3.5-gallons of glaze in a 5 gallon
bucket before you start slopping things on the floor! :-(
The best way to answer your question in all cases is to go back to
Brogniart's formula (see Archives for much more on this), which in one form
says, "Dry Solids, kilograms = (Kgs slurry - Liters slurry) X Solids
density./(Solids density -1)"
The weight of your slurry in kilograms is just 5 gallons X 3.78
Liters/gallon X 1.4 Kg/L. As you can see, you do need to either pick a
glaze density or a dry material weight to use this formula. I have found
you want the glaze density higher for high-frit glazes, and you want the
density lower as the percent of clay increases, to keep a workable
consistency for suspension and application.
I use as an average density for the glaze ingredients 2.67, which I
think is close to what our glaze materials usually average, and is, close
enough for glaze mixing purposes.
If all this is confusing, please ask for clarification. Good glazing!
Dave Finkelnburg, off to more glazing in Idaho
----- Original Message -----
From: "Lajos Kamocsay"
> I'd like to mix about 5 gallons of the following ^6 glaze from
digitalfire.com:
>
> G1214W CLEAR LOW EXPANSION
> WOLLASTONITE 10.00 CaO 0.57*
> FRIT 3134 25.00 K2O 0.02*
> PIONEER KAOLIN 25.00 Na2O 0.17*
> FLINT 25.00 Al2O3 0.35
> F-4 FELDSPAR 15.00 B2O3 0.24*
> SiO2 2.94
>
> How much dry material would make about 5 gallons for dipping application?
Ron Roy on fri 24 jan 03
Yes - the expansion is quite low - on the verge of being too low for some
clays - here is a version with a higher expansion that will be right for
must cone 6 clays. It will look the same.
Wollas - 7.0
3134 - 25.0
Pioneer - 18.5 (Pioneer kaolin had not been very steady over the years and
promotes crawling sometimes - EPK will work fine as a sub)
Silica - 21.0
F4 spar - 28.5
Total 100.0
Can't remember what amount to mix for 5 gal.
RR
>I'd like to mix about 5 gallons of the following ^6 glaze from digitalfire.com:
>
>G1214W CLEAR LOW EXPANSION
>WOLLASTONITE 10.00 CaO 0.57*
>FRIT 3134 25.00 K2O 0.02*
>PIONEER KAOLIN 25.00 Na2O 0.17*
>FLINT 25.00 Al2O3 0.35
>F-4 FELDSPAR 15.00 B2O3 0.24*
> SiO2 2.94
>
>How much dry material would make about 5 gallons for dipping application?
>
>Thanks,
>Lajos
>
>______________________________________________________________________________
>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
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
| |
|
