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Tom Coleman recipe porcelain

 

30 grolleg

25. Neph Sy

30 Silica

15. Om4

2. Bentonite

 

I'm going to alter this a bit to

 

30 grolleg

26.25 neph Sy

27 silica 200

3 silica 140

7 om4

8 xx sagger

1.5. Vee gum T

 

I'm trying for a white helios like body. I need to get some c&c ball clay, I upped the nephsy to lower absorbtion at. Cone 6. I'd like to get 1% or less Added some larger silica, cause I had it , and to mix up particle sizes, added xx less iron than om 4, Since I don't have white bentonite I'm adding vee gum t.

I,also,slurry. Is my clays then dry them down, they tend to need less plasticizers. And yes some purists will say it's not a true porcelain..... Ill make 25# of this later this week

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Zamek "perfect body"

 

15. Hawthorne 40

10. Lincoln 30

40. Gold Art

15 zamek ball clay

10 flint

7 custer feldspar

8 grog 48f

 

 

 

I tweaked it to what I had

 

15 Hawthorne

10 sagger xx

40 gold art

8. OM 4 ball clay

7. #5 ball clay

8. 200 silica

2. 140 silica

8 grog 35-50 christy mineral

 

It's a bit grittier than I expected I will use higher percentage finer grit. Just finished drying a wedged it up today. This is 50# of dry ingredients. I'm going to let it age a few weeks. It feels young at just over a week old. I'll post more on this one after aging.

post-25544-0-41339000-1401155214_thumb.jpg

post-25544-0-41339000-1401155214_thumb.jpg

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Tom Coleman recipe porcelain

 

30 grolleg

25. Neph Sy

30 Silica

15. Om4

2. Bentonite

 

I'm going to alter this a bit to

 

30 grolleg

26.25 neph Sy

27 silica 200

3 silica 140

7 om4

8 xx sagger

1.5. Vee gum T

 

I'm trying for a white helios like body. I need to get some c&c ball clay, I upped the nephsy to lower absorbtion at. Cone 6. I'd like to get 1% or less Added some larger silica, cause I had it , and to mix up particle sizes, added xx less iron than om 4, Since I don't have white bentonite I'm adding vee gum t.

I,also,slurry. Is my clays then dry them down, they tend to need less plasticizers. And yes some purists will say it's not a true porcelain..... Ill make 25# of this later this week

please let me know how your changes pan out.  I've been pricing out the very similar Campana recipe - most seem to have have high quantities of Grolleg which of course is the most expensive ingredient.

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Jammy,

Grolleg is pricy but it could be worse look at new zeland kaolin. If you don't need the. Super white body EPK is good option and much better on pocket book. Still a very good porcelain. It's grey when wet, dries white fires to bit off white. I'm a big fan of epk it's local for me and I usually go to mine and pick up direct.

 

I have yet to make a porcelain with little to no ball clay. The one with ball are already a bit finicky in throwing , drying, shaping etc etc. I imagine those low to no ball clay will be even more demanding!

 

I've been eye balling the. Campagna recipe also. Will this be your first time making clay? I just returned from highwater with whole,bags of lizella, helmer, c&c, I already have whole bagS of epk, grolleg and small amount of tile 6. Unfortunately my next clay mix will be lizella, low fire ish. And and a wood fired body. See making clay 101 here.

 

I couldn't find white bentonite, so I'm subbing vee gum T, There is no conversion factor when I asked I think I'll try 65% of bentonite quantity. Blunging prior to mixing clay. Any opinion here?

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Jammy,

Grolleg is pricy but it could be worse look at new zeland kaolin. If you don't need the. Super white body EPK is good option and much better on pocket book. Still a very good porcelain. It's grey when wet, dries white fires to bit off white. I'm a big fan of epk it's local for me and I usually go to mine and pick up direct.

 

I have yet to make a porcelain with little to no ball clay. The one with ball are already a bit finicky in throwing , drying, shaping etc etc. I imagine those low to no ball clay will be even more demanding!

 

I've been eye balling the. Campagna recipe also. Will this be your first time making clay? I just returned from highwater with whole,bags of lizella, helmer, c&c, I already have whole bagS of epk, grolleg and small amount of tile 6. Unfortunately my next clay mix will be lizella, low fire ish. And and a wood fired body. See making clay 101 here.

 

I couldn't find white bentonite, so I'm subbing vee gum T, There is no conversion factor when I asked I think I'll try 65% of bentonite quantity. Blunging prior to mixing clay. Any opinion here?

 

Check out Sapphire kaolin as well, assuming it's still available.

 

For me, it's not porcelain if it has ball clay in it. Ball clay totally ruins the feel of the clay, and I find it nicer to work with without the ball clay.

 

Go with 2% Vee Gum T.

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