Len Cockman on sun 8 oct 06
Ron/John...or anyone else in the know.
To get accustomed to mixing my own kitchenware-safe glazes I am following some basic recipes from "Mastering ^6 glazes". I have 5 gallon buckets and am trying to get about 4 gallons of glaze. Following the % batch method I have made approximately (due to colorants,etc.) 4,000 gram batches but the glaze seems really thin. It just pretty much poured right through my talisman sieve with almost no stirring/brushing after a 24 hr. slake and 1 min. electric blending.
Is there an approximate gram total to get me in the ballpark of a correct consistency for 4 gallons from a 5 gallon bucket. I have a basic understanding of molecular scales and know that it will indeed vary from recipe to recipe.
Thanks,
Len
From: Ron Roy <ronroy@CA.INTER.NET>
Reply-To: Clayart <CLAYART@LSV.CERAMICS.ORG>
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Edward's satin matt
Date: Sat, 7 Oct 2006 13:57:24 -0500
>Hi Brad,
>
>Yes this looks productive.
>
>Remember - boron never recrystallizes - you need to keep this in mind when
>looking for a satin or matte glaze. I have never done the experiments but
>you may find you have to compensate for the increased B2O3.
>
>I would recommend doing a 5 part line blend with the ratio lowered in #5.
>Keep in mind - you are trying for a liner glaze - so don't lower the SiO2
>much more - try raising the alumina instead.
>
>Keep in mind also - you don't want a liner glaze to "mark" so
test the
>glaze with different thicknesses - that will affect the surface and degree
>of mattness.
>
>RR
>
>Ron,
> >you said "I see the ratio is high enough to indicate a glossy glaze - if it
> >is not then it is surely underfired." John, you said, "It only has
> >0.12 B2O3. That's a little low for cone 6 glazes which usually have 0.2-0.25
> >boron.
> >
> >The test tile I did on this glaze definitely has a satin matt surface--not at
> >all glossy. So it seems clear more boron is needed. My question now is
> >how to introduce more boron??? I used GlazeMaster tto recalc this this
> >recipe
> >to increase the boron. It took some trial and error, but by subbing Frit
> >3195 for Frit 3134 and
increasing the amt to 25%--and by reducing the
> >silica from
> >14 to 9%, I think I may have solved the low boron problem and lowered the
> >Si:Al ratio into the satin matt range (for a fully melted glaze). Here
> >is the
> >recalculated recipe and its Unity Formula.
> >
> >Ron and John--and anyone else, would you please comment. I am I getting
> >this right? I am trying to achieve a stable satin-matt glaze that won't
> >metal
> >mark--a satin-matt for food surfaces.
> >
> >Thanks for the help.
> >
> >Brad Carter
> >Grass Valley, Calif.
> >
> >Recipe Name: RECALCULATED Edward's Robin's egg satin
> >
> >Cone:
6 Color: robin's egg blue
> >Firing: Oxidation Surface: satin matt
> >
> >
> >
> >Amount Ingredient
> >47 Feldspar--Kona F4
> >9 Silica
> >13 Talc
> >25 Frit--Ferro 3195
> >8 Dolomite
> >5 Kaolin--EPK
> >
>
>107 Total
> >
> > Additives
> >6 Tin Oxide
> >4 Copper Carbonate
> >
> >Unity Oxide
> >.212 Na2O
> >.066 K2O
> >.377 MgO
> >.345 CaO
>
>1.000 Total
> >
> >.377 Al2O3
> >.229 B2O3
> >.002 Fe2O3
> >
> >2.79 SiO2
> >.001 TiO2
> >0 P2O5
> >
> >7.4 Ratio
> >69.6 Exp
>
>Ron Roy
>RR#4
>15084
Little Lake Road
>Brighton, Ontario
>Canada
>K0K 1H0
>
>______________________________________________________________________________
>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.
Search—Your way, your world, right now!
Len Cockman on mon 9 oct 06
John:
I am following your book with the base recipes. Initially I added all the dry ingredients to a total of 4kg. I then covered with a lid-mixer opening and filled w/ H20 from there I blended for one min and screened. Tonight I have doubled each recipe to 8 kg. and it seems to be much more consistent. will sieve tomorrow after school and run some basic test combinations.
Your book has been a huge help.
Len Cockman, South Bend, Indiana
From: John Hesselberth <hesselberth@MINDSPRING.COM>
Reply-To: Clayart <CLAYART@LSV.CERAMICS.ORG>
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Mastering ^6 glazes-gram batch for 5 gallon buckets.
Date: Mon, 9 Oct 2006 09:53:45 -0400
>Hi Len,
>
>I guess some people make 10,000 (10kg) batches for a 5 gallon
>bucket,
>but I always found that to be too full of a bucket for me. I
>personally prefer to mix about 6kg for a 5 gallon bucket which makes
>it a bit over half full.
>
>It is not clear to me how you mixed the 4 kg batch. You should have
>started with about 4 quarts of water (1 quart per 1000 grams and
>added 4 kg of dry glaze mix to it--then thin to taste. It sounds
>like
>you put a bunch
of water in the bucket to get it 4/5 full and then
>added 4 kg of glaze. If that is what you did it is not surprising
>that it is very, very thin.
>
>So tell us more thoroughly what you did and I or someone else can
>advise on how to get from where you are to where you want to be.
>
>Regards,
>
>John
>On Oct 8, 2006, at 8:57 PM, Len Cockman wrote:
>
>>Ron/John...or anyone else in the know.
>>
>>To get accustomed to mixing my own kitchenware-safe glazes I am
>>following some basic recipes from "Mastering ^6 glazes". I have 5
>>gallon buckets and am trying to get about 4 gallons of glaze.
>>Following the % batch method I have made approximately (due to
>>colorants,etc.) 4,000 gram batches but the glaze seems really
>>thin. It just
pretty much poured right through my talisman sieve
>>with almost no stirring/brushing after a 24 hr. slake and 1 min.
>>electric blending.
>>
>>Is there an approximate gram total to get me in the ballpark of a
>>correct consistency for 4 gallons from a 5 gallon bucket. I have a
>>basic understanding of molecular scales and know that it will
>>indeed vary from recipe to recipe.
>>
>>Thanks,
>>
>>Len
>>
>>
>>
>
>______________________________________________________________________________
>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.
Find a local pizza place, music store, museum and more…then map the best route!
Craig Clark on mon 9 oct 06
Len, I always mix up a 10,000 gram batch. That will yield from 3 1/2 to
4 gallons or so depending upon which glaze it is. I like some a little
thicker and some a little thinner.
Hope this helps
Craig Dunn Clark
619 East 11 1/2 St
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
Len Cockman wrote:
>
> Ron/John...or anyone else in the know.
>
> To get accustomed to mixing my own kitchenware-safe glazes I am
> following some basic recipes from "Mastering ^6 glazes". I have 5
> gallon buckets and am trying to get about 4 gallons of glaze.
> Following the % batch method I have made approximately (due to
> colorants,etc.) 4,000 gram batches but the glaze seems really thin. It
> just pretty much poured right through my talisman sieve with almost no
> stirring/brushing after a 24 hr. slake and 1 min. electric blending.
>
> Is there an approximate gram total to get me in the ballpark of a
> correct consistency for 4 gallons from a 5 gallon bucket. I have a
> basic understanding of molecular scales and know that it will indeed
> vary from recipe to recipe.
>
> Thanks,
>
> Len
>
> ------------------------------------------------------------------------
> From: /Ron Roy /
> Reply-To: /Clayart /
> To: /CLAYART@LSV.CERAMICS.ORG/
> Subject: /Re: Edward's satin matt/
> Date: /Sat, 7 Oct 2006 13:57:24 -0500/
> >Hi Brad,
> >
> >Yes this looks productive.
> >
> >Remember - boron never recrystallizes - you need to keep this in
> mind when
> >looking for a satin or matte glaze. I have never done the
> experiments but
> >you may find you have to compensate for the increased B2O3.
> >
> >I would recommend doing a 5 part line blend with the ratio
> lowered in #5.
> >Keep in mind - you are trying for a liner glaze - so don't lower
> the SiO2
> >much more - try raising the alumina instead.
> >
> >Keep in mind also - you don't want a liner glaze to "mark" so
> test the
> >glaze with different thicknesses - that will affect the surface
> and degree
> >of mattness.
> >
> >RR
> >
> >Ron,
> > >you said "I see the ratio is high enough to indicate a glossy
> glaze - if it
> > >is not then it is surely underfired." John, you said, "It only has
> > >0.12 B2O3. That's a little low for cone 6 glazes which usually
> have 0.2-0.25
> > >boron.
> > >
> > >The test tile I did on this glaze definitely has a satin matt
> surface--not at
> > >all glossy. So it seems clear more boron is needed. My question
> now is
> > >how to introduce more boron??? I used GlazeMaster tto recalc
> this this
> > >recipe
> > >to increase the boron. It took some trial and error, but by
> subbing Frit
> > >3195 for Frit 3134 and increasing the amt to 25%--and by
> reducing the
> > >silica from
> > >14 to 9%, I think I may have solved the low boron problem and
> lowered the
> > >Si:Al ratio into the satin matt range (for a fully melted
> glaze). Here
> > >is the
> > >recalculated recipe and its Unity Formula.
> > >
> > >Ron and John--and anyone else, would you please comment. I am I
> getting
> > >this right? I am trying to achieve a stable satin-matt glaze
> that won't
> > >metal
> > >mark--a satin-matt for food surfaces.
> > >
> > >Thanks for the help.
> > >
> > >Brad Carter
> > >Grass Valley, Calif.
> > >
> > >Recipe Name: RECALCULATED Edward's Robin's egg satin
> > >
> > >Cone: 6 Color: robin's egg blue
> > >Firing: Oxidation Surface: satin matt
> > >
> > >
> > >
> > >Amount Ingredient
> > >47 Feldspar--Kona F4
> > >9 Silica
> > >13 Talc
> > >25 Frit--Ferro 3195
> > >8 Dolomite
> > >5 Kaolin--EPK
> > >
> > >107 Total
> > >
> > > Additives
> > >6 Tin Oxide
> > >4 Copper Carbonate
> > >
> > >Unity Oxide
> > >.212 Na2O
> > >.066 K2O
> > >.377 MgO
> > >.345 CaO
> > >1.000 Total
> > >
> > >.377 Al2O3
> > >.229 B2O3
> > >.002 Fe2O3
> > >
> > >2.79 SiO2
> > >.001 TiO2
> > >0 P2O5
> > >
> > >7.4 Ratio
> > >69.6 Exp
> >
> >Ron Roy
> >RR#4
> >15084 Little Lake Road
> >Brighton, Ontario
> >Canada
> >K0K 1H0
> >
> >______________________________________________________________________________
> >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.
>
>
> ------------------------------------------------------------------------
> Search—Your way, your world, right now!
>
> ______________________________________________________________________________
> 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.
John Hesselberth on mon 9 oct 06
Hi Len,
I guess some people make 10,000 (10kg) batches for a 5 gallon bucket,
but I always found that to be too full of a bucket for me. I
personally prefer to mix about 6kg for a 5 gallon bucket which makes
it a bit over half full.
It is not clear to me how you mixed the 4 kg batch. You should have
started with about 4 quarts of water (1 quart per 1000 grams and
added 4 kg of dry glaze mix to it--then thin to taste. It sounds like
you put a bunch of water in the bucket to get it 4/5 full and then
added 4 kg of glaze. If that is what you did it is not surprising
that it is very, very thin.
So tell us more thoroughly what you did and I or someone else can
advise on how to get from where you are to where you want to be.
Regards,
John
On Oct 8, 2006, at 8:57 PM, Len Cockman wrote:
> Ron/John...or anyone else in the know.
>
> To get accustomed to mixing my own kitchenware-safe glazes I am
> following some basic recipes from "Mastering ^6 glazes". I have 5
> gallon buckets and am trying to get about 4 gallons of glaze.
> Following the % batch method I have made approximately (due to
> colorants,etc.) 4,000 gram batches but the glaze seems really
> thin. It just pretty much poured right through my talisman sieve
> with almost no stirring/brushing after a 24 hr. slake and 1 min.
> electric blending.
>
> Is there an approximate gram total to get me in the ballpark of a
> correct consistency for 4 gallons from a 5 gallon bucket. I have a
> basic understanding of molecular scales and know that it will
> indeed vary from recipe to recipe.
>
> Thanks,
>
> Len
>
>
>
Ron Roy on mon 9 oct 06
Hi Len,
I usually add extra water before sieving - because it is easy to sieve that
way - just take off the extra water the next day - you can then weigh it
and if you know how much you used to start with you have your answer.
Just take off almost all the clear water after the glaze has settled - stir
and add water back in till the glaze is just right.
This will not work with glazes that have solubles in them - you will be
removing solubles which may be necessary for the glaze to work properly.
In the case where solubles are causing a problem - adding a lot of water
and removing it the next day will reduce the level of solubles in a glaze -
it's called "washing" a glaze.
RR
Ron/John...or anyone else in the know.
To get accustomed to mixing my own kitchenware-safe glazes I am following
some basic recipes from "Mastering ^6 glazes". I have 5 gallon
buckets and am trying to get about 4 gallons of glaze. Following the
% batch method I have made approximately (due to colorants,etc.) 4,000 gram
batches but the glaze seems really thin. It just pretty much poured
right through my talisman sieve with almost no stirring/brushing after a 24
hr. slake and 1 min. electric blending.
Is there an approximate gram total to get me in the ballpark of a correct
consistency for 4 gallons from a 5 gallon bucket. I have a basic
understanding of molecular scales and know that it will indeed vary
from recipe to recipe.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Donna Kat on wed 11 oct 06
I don't know if anyone cares but I am getting this in almost unreadable
html script.
On Mon, 9 Oct 2006 22:05:23 -0500, Len Cockman
wrote:
>
> John:
> I am following your book with the base recipes. Initially I
added all the dry ingredients to a total of 4kg. I then covered with
a lid-mixer opening and filled w/ H20 from there I blended for one min and
screened. Tonight I have doubled each recipe to 8 kg. and it seems
to be much more consistent. will sieve tomorrow after school and run
some basic test combinations.
> Your book has been a huge help.
> Len Cockman, South Bend, Indiana
>
> #a0c6e5 2px solid; MARGIN-RIGHT: 0px">FAMILY: tahoma,sans-serif">
>
>
>From: John Hesselberth
<hesselberth@MINDSPRING.COM>
Reply-To: Clayart
<CLAYART@LSV.CERAMICS.ORG>
To: CLAYART@LSV.CERAM
ICS.ORG
Subject: Re: Mastering ^6 glazes-gram batch
for 5 gallon buckets.
Date: Mon, 9 Oct 2006 09:53:45 -
0400
>Hi Len,
>
>I guess some people make 10,000
(10kg) batches for a 5 gallon
>bucket,
>but I always found
that to be too full of a bucket for me. I
>personally prefer to mix
about 6kg for a 5 gallon bucket which makes
>it a bit over half
full.
>
>It is not clear to me how you mixed the 4 kg batch.
You should have
>started with about 4 quarts of water (1 quart per
1000 grams and
>added 4 kg of dry glaze mix to it--then thin to
taste. It sounds
>like
>you put a bunch
>of water in the bucket to get it 4/5 full and then
>added 4 kg of
glaze. If that is what you did it is not surprising
>that it is
very, very thin.
>
>So tell us more thoroughly what you did
and I or someone else can
>advise on how to get from where you are
to where you want to
be.
>
>Regards,
>
>John
>On Oct 8, 2006, at
8:57 PM, Len Cockman wrote:
>
>>Ron/John...or anyone else
in the know.
>>
>>To get accustomed to mixing my own
kitchenware-safe glazes I am
>>following some basic recipes
from "Mastering ^6 glazes". I have 5
>>gallon buckets
and am trying to get about 4 gallons of glaze.
>>Following the %
batch method I have made approximately (due to
>>colorants,etc.)
4,000 gram batches but the glaze seems
really
>>thin. It just
>pretty much poured right through my talisman sieve
>>with almost
no stirring/brushing after a 24 hr. slake and 1 min.
>>electric
blending.
>>
>>Is there an approximate gram total to get
me in the ballpark of a
>>correct consistency for 4 gallons from
a 5 gallon bucket. I have a
>>basic understanding of
molecular scales and know that it will
>>indeed vary from recipe
to
recipe.
>>
>>Thanks,
>>
>>Len
>&g
t;
>>
>>
>
>_________________________________
_____________________________________________
>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.
clear=3Dall>
target=3D"_top">Find a local pizza place, music store, museum and more=85the=
n
map the best route!
>
>__________________________________________________________________________
____
>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.
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