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grolleg vs english china clay

updated tue 10 oct 06

 

Rick Hamelin on fri 6 oct 06


A friend asked me about Grolleg vs English China Clay as she is reading Zakin's book and finds that he listed Grolleg and English China Clay as two separate clay types. Her problem is that she is believing that she is purchasing "Grolleg" from her supplier, who sells it to her as such, but the bag only read "Imerys Quality China Clay" and makes no mention of grolleg. My numerous books and google searches haven't successfully answered this to my satifaction and the Imerys website is quite limited.
I find here that they are http://www.ceramicmaterials.com/cermat/material/831.html the same but Zakin's reference as Grolleg being plastic and ECC being nonplastic really has her concerned.
So, is this "Imerys Quality China Clay" the exact same thing as Grolleg?
Thank you
Rick

--
"Many a wiser men than I hath
gone to pot." 1649

David Beumee on sat 7 oct 06


Hi Rick,
Grolleg is one of the kaolin blends sold by ECC, English China Clay, now owned by Imerys. It is confusing that a bag of Grolleg only says Imerys Quality China Clay on it, but Grolleg kaolin is what is contained in the bag. Your friend has purchased Grolleg!
Other kaolin blends produced by ECC (Imerys) are Standard Porcelain and Super Standard Porcelain, both of which were labeled as such on the outside of the bag. Because of new ownership, labels may be changing.

David Beumee
Lafayette, CO












-------------- Original message ----------------------
From: Rick Hamelin
> A friend asked me about Grolleg vs English China Clay as she is reading Zakin's
> book and finds that he listed Grolleg and English China Clay as two separate
> clay types. Her problem is that she is believing that she is purchasing
> "Grolleg" from her supplier, who sells it to her as such, but the bag only read
> "Imerys Quality China Clay" and makes no mention of grolleg. My numerous books
> and google searches haven't successfully answered this to my satifaction and the
> Imerys website is quite limited.
> I find here that they are
> http://www.ceramicmaterials.com/cermat/material/831.html the same but Zakin's
> reference as Grolleg being plastic and ECC being nonplastic really has her
> concerned.
> So, is this "Imerys Quality China Clay" the exact same thing as Grolleg?
> Thank you
> Rick
>
> --
> "Many a wiser men than I hath
> gone to pot." 1649
>
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Vince Pitelka on sat 7 oct 06


Rick -
Grolled IS English china clay, so the comparison is moot.
- Vince

Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/

Veena Raghavan on sat 7 oct 06


This is one of the many wonderful aspects of Clayart--the knowledge that is
shared so generously. You folks are truly delightful and wonderful. The more we
learn, the more we would like to know. Just added this nugget of information
to my own little Clayart database!'

Veena Raghavan
Falls Church, Virginia


In a message dated 10/7/2006 7:55:20 PM Eastern Standard Time,
claybuds@ATT.NET writes:
> Grolleg is one of the kaolin blends sold by ECC, English China Clay, now
> owned by Imerys. It is confusing that a bag of Grolleg only says Imerys Quality
> China Clay on it, but Grolleg kaolin is what is contained in the bag.

VeenaRaghavan@cs.com

Steve Mills on mon 9 oct 06


Actually there are quite a large number of different China Clays
(Kaolins) produced by English China Clays (ECC)/Imerys.

You'll find some clarifying information here:



Steve
Bath
UK


In message , Rick Hamelin writes
>A friend asked me about Grolleg vs English China Clay as she is reading Z=
>akin's book and finds that he listed Grolleg and English China Clay as tw=
>o separate clay types. Her problem is that she is believing that she is p=
>urchasing "Grolleg" from her supplier, who sells it to her as such, but t=
>he bag only read "Imerys Quality China Clay" and makes no mention of grol=
>leg. My numerous books and google searches haven't successfully answered =
>this to my satifaction and the Imerys website is quite limited.
>I find here that they are http://www.ceramicmaterials.com/cermat/material=
>/831.html the same but Zakin's reference as Grolleg being plastic and ECC=
> being nonplastic really has her concerned.
>So, is this "Imerys Quality China Clay" the exact same thing as Grolleg?
>Thank you
>Rick
>
>--
>"Many a wiser men than I hath
>gone to pot." 1649

--
Steve Mills
Bath
UK

Tony Coroli on mon 9 oct 06


Hi Rick,

Steve is correct that there are many different grades of kaolin produced by
Imerys, and their own websites are probably the best to give you an
overview. These are divided by the most common end applications and are
found at:

http://www.imerys-tableware.com

http://www.imerys-sanitaryware.com

http://www.imerys-tiles-minerals.com

Within each websites are various tabs and links to data sheets for the
individual gardes of ball clay, kaolins, prepared bodies and glazes

I hope that helps

Tony

Craig Martell on mon 9 oct 06


Hello Rick:

You might have your friend check the sides of the bag, if this hasn't been
done already, and look for a printed description of the product contained
within. They may be using generic bagging now and print the name of the
clay or product on the bags as the material is processed and bagged for
shipment. I have some ECC bags from about a year ago of three English
China Clays. Grolleg, Standard Porcelain, and Super Standard
Porcelain. The bags are generic ECC Quality China Clay bags and the clay
is identified by a printed panel on the side of the bag. Most of the
Grolleg bags are marked Grolleg on the front, but not all of them. Imerys
may have changed things a bit.

hope this is helpful, Craig Martell Hopewell, Oregon

Rick Hamelin on mon 9 oct 06


Hi Everyone,
I contacted the manufacturer directly and the author of the book (page 112 of Jeff Zamek's What Every Potter Should Know" is where I learned of Grolleg vs ECC,) this past weekend and I haven't received any replies yet.
What I do know is that there are many English China Clays and Grolleg is only one of many types that Imerys sells.
You can learn more about them here: http://www.imerys.com/scopi/group/imeryscom/imeryscorp.nsf.
Quite interesting, Kentucky-Tennessee Clay is owned by them as well. Seems that Imerys is actually owned by some French company. One company is responsible for most of the claymining in the world.
Again, thank you all and I will update you.
Rick

--
"Many a wiser men than I hath
gone to pot." 1649