Maria
from
United Kingdom
asks
At what temperature does ES5 vitrify? Many thanks - Maria
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Scarva Replies:
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Around 1200°C, hope this helps.
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Annabel Seymour
from
Ireland
asks
This is quite high firing - what glazes would you use?
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Scarva Replies:
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Any stoneware glaze will work perfectly, hope this helps.
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Steademan
from
United Kingdom
asks
Is this a suitable clay for a 4 day woodfiring? Or would you recommend another?
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Scarva Replies:
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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
from
United Kingdom
asks
Will items be frost proof if the clay has vitrified? Thanks
|
Scarva Replies:
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They will yes.
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Judith
from
United Kingdom
asks
What temperature would you bisque this clay?
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Scarva Replies:
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I would bisque fire this to 1000oC.
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Lucy
from
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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Scarva Replies:
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No that is fine the bisque firing for most clays would always be around 1000oC.
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Mark
from
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
|
Scarva Replies:
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It should be fine yes.
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Lizzie
from
United Kingdom
asks
Hello, What are the dimensions of a 12.5kg bag of clay?
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Scarva Replies:
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The bag is approximately 43cm long x 15cm diameter.
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Ellie
from
United Kingdom
asks
Do you know the shrinkage ratio for this clay? (my final fire temp is 1250)
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Scarva Replies:
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It is approximately 11.6%.
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Rufus
from
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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Scarva Replies:
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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
from
United Kingdom
asks
Hi, where is ES5 mined?
|
Scarva Replies:
|
Hi,
This clay is manufactured from materials sourced in the UK.
Hope this helps
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Christina
from
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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Scarva Replies:
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Yes this is an excellent clay body for ovenware. It also has excellent glaze fit.
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Nicola
from
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
|
Scarva Replies:
|
Hi,
It will remain similar the colour shown with a slightly more grey tone to it.
Hope this helps!
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Claire
from
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.
|
Scarva Replies:
|
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
from
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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Scarva Replies:
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The clay will still be porous so only suitable for decorative ceramics.
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Jaleel
from
Kuwait
asks
I use amaco potters choice glazes. If I fire to 1185C and hold for 25min, will this vitrify?
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Scarva Replies:
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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
from
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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Scarva Replies:
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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
from
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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Scarva Replies:
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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
from
United Kingdom
asks
Hello! What is the clay shrinkage percentage on this one? Thanks
|
Scarva Replies:
|
Hi there, 13% shrinkage at stoneware.
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Alix
from
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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Scarva Replies:
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Hi, yes ES5 is suitable for mugs and cake plates.
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Gil
from
United Kingdom
asks
I know that you recommend bisque firing to 1000C, do you have a cone recommendation for this clay? I use Amaco Potters Choice which recommends a bisque fire of 04, but I’m not sure if that’s then too hot for what you’d recommend. Thanks.
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Scarva Replies:
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Hi, we recommend 1000°C on a computerised controller, this equates to cone 06, you should still be fine with this clay to bisque fire to cone 04, you will need to leave slightly longer between coats with the slightly higher bisque temperature. Hope this helps!
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Christina
from
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?
|
Scarva Replies:
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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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