Gail
from
United Kingdom
asks
Are the Parian casting slips food safe once fired?
Thank you.
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Scarva Replies:
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If a glaze is food safe our not depends on several factors including the type of clay used, the firing temperature, the shape of the vessel, the thickness of glaze even the position of the vessel in the kiln can have an effect on the glaze. Ideally a food safe test would be carried out by a reputable body like British Ceram. In the case of the glaze mentioned it would most likely pass a food safe test providing it was fired on a suitable body like our ES5 Earthstone Original in an electric kiln and to the suggested firing temperature.
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Beata
from
United Kingdom
asks
Hello, do I need to glaze the inside if I want to make a translucent candle holder?
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Scarva Replies:
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No it should be fine unglazed.
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cat
from
United Kingdom
asks
Does this slip come in a bottle or a tub?
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Scarva Replies:
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It comes in a bottle.
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ann
from
United Kingdom
asks
You say it's self glazing does that mean you have to stilt it so it doesn't stick to the kiln shelf
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Scarva Replies:
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The clay will have a satin finish after firing. In most cases it is not necessary to put the work onto stilts. You can fire directly on the kiln shelf.
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Ina
from
France
asks
Hello !
please..I need a quick answer
how do you fire this? once at 980° then a second time to 1240°?
or only once directly at 1240°?
Thank you for you quick answer
take care !
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Scarva Replies:
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Hi, this can be fired to bisque at 1000°C, glazed and fired to 1240°C, alternatively if you don't want to glaze it you single fire straight to 1240°C. I would recommend starting the firing slowly as you woudld a standard biscuit program then increase the speed to 100°C per hour after 500°C hope this helps!
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Linda
from
United Kingdom
asks
Is slip cast unglazed parian fired to 1240 food safe?
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Scarva Replies:
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Hi, it would be vitrified at this temperature but we could not say for sure. To be sure the work would need to be tested at a facility such as Northern Test House or Lucideon. For more info please see https://www.scarva.com/en/Is-This-Glaze-Food-Safe/cc-40.aspx
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