Maria
de
United Kingdom
asks
At what temperature does ES5 vitrify? Many thanks - Maria
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Réponses de Scarva:
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Around 1200°C, hope this helps.
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Annabel Seymour
de
Ireland
asks
This is quite high firing - what glazes would you use?
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Réponses de Scarva:
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Any stoneware glaze will work perfectly, hope this helps.
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Steademan
de
United Kingdom
asks
Is this a suitable clay for a 4 day woodfiring? Or would you recommend another?
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Réponses de Scarva:
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Yes this body is suitable here is a link to other bodies that may interest you to:
http://www.scarva.com/SearchResults.aspx?ProductSuperGroupID=2&ProductGroupID=13
Hope this helps.
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Emma
de
United Kingdom
asks
Will items be frost proof if the clay has vitrified? Thanks
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Réponses de Scarva:
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They will yes.
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Judith
de
United Kingdom
asks
What temperature would you bisque this clay?
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Réponses de Scarva:
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I would bisque fire this to 1000oC.
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Lucy
de
United Kingdom
asks
I bisque fired to 980 - is this a serious underfiring if I intend to glaze fire to 1230? Should I redo the bisque firing?
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Réponses de Scarva:
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No that is fine the bisque firing for most clays would always be around 1000oC.
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Mark
de
United Kingdom
asks
If I use Spectrum glazes and fire to cone 5 (1196) with a 15 minute hold should that result in vitrification? Thanks
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Réponses de Scarva:
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It should be fine yes.
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Lizzie
de
United Kingdom
asks
Hello, What are the dimensions of a 12.5kg bag of clay?
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Réponses de Scarva:
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The bag is approximately 43cm long x 15cm diameter.
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Ellie
de
United Kingdom
asks
Do you know the shrinkage ratio for this clay? (my final fire temp is 1250)
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Réponses de Scarva:
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It is approximately 11.6%.
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Rufus
de
United Kingdom
asks
I frequently use clays (including ES5) as part of my glaze recipes; I have recently started using glaze chemistry calculation software to refine these - these require chemical analyses for all ingredients. Are chemical analyses available for your clay bodies?
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Réponses de Scarva:
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Hi,
SiO2 - 64.84
TiO2 - 1.05
Al2O3 - 23.57
Fe2O3 - 0.75
P2O5 - 0.08
CaO - 0.22
MgO - 0.31
K2O - 2.57
Na2O - 0.72
Hope this helps!
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Alice
de
United Kingdom
asks
Hi, where is ES5 mined?
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Réponses de Scarva:
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Hi,
This clay is manufactured from materials sourced in the UK.
Hope this helps
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Christina
de
United Kingdom
asks
Could you tell me if this clay is suitable for oven dishes please.If so would any food safe stoneware glaze be suitable for use in the oven?
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Réponses de Scarva:
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Yes this is an excellent clay body for ovenware. It also has excellent glaze fit.
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Nicola
de
United Kingdom
asks
Hi, can you tell me please how a reduction firing (mid to heavy reduction) will affect the es5 clay colour? Thank you, Nicola
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Réponses de Scarva:
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Hi,
It will remain similar the colour shown with a slightly more grey tone to it.
Hope this helps!
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Claire
de
Ireland
asks
Hi,
I am bisque firing to 998 Celsius using ES5 and glaze firing to between 1060 and 1080 but the glaze keeps cracking. Should I be glaze firing to 1200 to 1290 as stated above?
Many thanks.
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Réponses de Scarva:
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Yes this is a stoneware clay body so using a compatible stoneware glaze will give you better results. Hope this helps.
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beth
de
Ireland
asks
I’ve been using scarva earthstone es10 and bisque firing that to 1100 and glaze firing to 1040 celsius will that work with this clay??
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Réponses de Scarva:
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The clay will still be porous so only suitable for decorative ceramics.
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Jaleel
de
Kuwait
asks
I use amaco potters choice glazes. If I fire to 1185C and hold for 25min, will this vitrify?
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Réponses de Scarva:
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I think it will be just not high enough if you fire 1200oc on the controller it should be vitrified.
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Anne Hunter
de
United Kingdom
asks
Hello please can you tell me if Amaco Potters Choice and Celadon Glazes will fit this clay body and at what temperature they should be fired at. I have had various succes rates with college clay and want to improve my work as a beginner. Thank you
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Réponses de Scarva:
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Yes this clay is ideal for the best results fire to cone 6. Hope this helps.
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Tamra
de
United Kingdom
asks
Where exactly in the UK is this clay sourced from? We have used it for 2 years, love it and our customers keep asking us where it is from!
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Réponses de Scarva:
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Hi, Thank you for the kind words, Scarva Earthstone clay is our own recipe of clay. We are glad you and your customers are enjoying it.
Thank you
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Angela
de
United Kingdom
asks
Hello! What is the clay shrinkage percentage on this one? Thanks
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Réponses de Scarva:
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Hi there, 13% shrinkage at stoneware.
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Alix
de
Ireland
asks
Hi I am a beginner and learning about different clay bodies. Will ES5 be smooth enough after firing/glazing to make a set of mugs and cake plates? Or is it more suitable for larger tableware due to its grog content?
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Réponses de Scarva:
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Hi, yes ES5 is suitable for mugs and cake plates.
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Christina
de
United Kingdom
asks
Hi, I use this clay for almost everything, but I'd like to do some very small slip casts. is there a slip recipe for ES5?
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Réponses de Scarva:
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This is an approximate recipe below it may need a little alteration but it is a good start.
ES5 12.5
WATER 2litres
SODA ASH 2.5g
SODIUM SILICATE 75TW 34g
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