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Scarva Earthstone ES90 Flecked Stoneware Clay
Express Checkout with   Tracked Delivery on All Orders The UK's No.1 Pottery Supplier Flecked Stoneware Many potters want to achieve the attractive, speckled effect that reduction firings give to clay, but this is not usually possible in an electric kiln. Some flecked clays have been introduced in the past, however, we believe this is the most successful one yet. ES90 Flecked Stoneware, when fired in an electric kiln, gives the attractive, speckled effect of a reduction firing. Based on our ES80 reduction body, this clay performs well and is ideal for the production of domestic tableware.
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Lovely clay
Really nice to throw with - improved my throwing capabilities! Have been able to throw much bigger forms. Turns well and did not warp on firing. Worked differently with my usual glazes - more interesting results.
Fiona
United Kingdom
04 December 2020
Helpful?
(35)
(0)
Great
Excellent clay body. Interesting results with the fleck, can cause pinholes in some glazes I've tried. I use successfully for throwing. Really lovely with the right glaze.
Teresa
United Kingdom
08 June 2025
Helpful?
(1)
(3)
Is this flecked clay suitable for throwing?
Terri from United Kingdom
Yes it is ideal for throwing on the wheel.
Scarva Team
Hi guys,
Is this clay body suitable throwing functional tableware and firing with stoneware glaze?
Also, is it microwave and dishwasher safe once fired to stoneware temperature?
Thanks,
Alex
Alex from United Kingdom
Yes this is and ideal clay for this.
Scarva Team
Will the speckles show up through all glaze finishes, gloss, satin and matt?
Natalie from United Kingdom
Hi,
It really depends entirely on the glaze, an iron reactive glaze or a transparent the speck will show however the more you increase the opacity of a glaze the less likely it will be that you see the speck through it.
Hope this helps
Scarva Team
Can I use this clay for slab building?
Mandy from Guernsey
Hi,
Yes this clay can be used for slab building
Scarva Team
Hello there, Do you have any photos showing this clay when fired In oxidation? I understand that the flecks might not show through all glazes but do you have any examples where this effect has been achieved successfully?
Thank you.
Lorna from Ireland
The photograph is the clay fired in oxidization electric kiln. Hope this helps.
Scarva Team
can this clay be fired at 1180C - 1185C or it must be fired at minimum of 1220?
Jaleel from Kuwait
Hi,
This clay won't be vitirifed at such a low temperature, you may experience issues with glaze fit and porosity. Ideally it needs to be fired higher.
Hope this helps
Scarva Team
Hi, I just wanted to check the firing temperature. I fire to cone 6, with Amaco Potters Choice Glazes,is this hot enough for this clay? Using conversation table I get some that say cone 6 is 1200 others 1220. Could you advise what cone temperature.
Many thanks
Susan
Susan from United Kingdom
Yes this temperature range will be ideal for this clay body.
Scarva Team
Does it contain grog? If yes, what is the percentage and size.
Othman from Kuwait
No this clay is smooth and does not contain any grog.
Scarva Team
What is the shrinkage ratio for this clay? (I fire to cone 6).
Marlene from United Kingdom
Hi there, shrinkage is 15% at 1200degrees.
Scarva Team
Is this clay suitable for adding sodium silicate 100s RM1054 for slip casting?
Megan from United Kingdom
Hi there, yes it would be.
Scarva Team
Is there grog/chammotte in this clay, and if so, what percentage & what size?
Renate from Latvia
No this clay does not contain any grog and is very smooth, hope this helps.
Scarva Team
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