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Scarva Earthstone Professional PF680 Black Smooth From £2.89
Firing Temp 1080-1260°C
Scarva Professional Black Clay bodies, PF660, PF670 & PF680 are not suitable for making Domestic Tableware.
There are 9 reviews with an average rating of 4.44
Andrew TS from United KingdomOwner22 March 2018 13:40
Most glazes fail on this clay but the new GZ2161 Low Expansion Tin Gloss Glaze which I understand is developed for this clay works perfectly. No bubbling or crawling. There is also a clear version of this glaze which works without issues too.
Jeanette from United KingdomOwner26 February 2019 23:01
Bought a sample amount to have a play with as hope to design and make a chess set one day soon! So far only fired a bead size to check on its colour and texture, quite tacky to use but it does fire to a good black.
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Steph from Australia asks
As this clay contains manganese, please could you confirm that it is safe to throw and handle without wearing protective gloves, thanks
Emidio from Australia asks
Hello, Can you advise me of shrinkage rate at stoneware temperature please. Thank you Emidio
sam from United Kingdom asks
I have been looking at your previous questions and answers, and you mention that it can be hard for a transparent glaze to mature correctly on this clay. does this mean it will be prone to having crazing issues and any other problems?
Christine from Australia asks
There is an advice on your website that the Scarvia Earthstone black is not foodsafe. Can you please confirm this is correct - even if glazed and fired to 1260, and advise why this is?
Georgina from Australia asks
Is it ok to paint a slip on this clay at green stage and then bisque fire it? It sounds like glazes don't take well so maybe this might work?
Rachel from United Kingdom asks
Hi, I have two questions - 1. reading the above thread, am I correct in my understanding that if the item can be properly glazed, it is food safe? 2. I have used Amaco's Potters Choice (food safe) glazes succesfully on this clay body ... is this not food safe?
Brynn from United Kingdom asks
Can I use the same transparent glaze on this stoneware as Scarva Earthstone ES5 Original White Stoneware Clay? Is there a transparent *matte finish* glaze that is suitable for dinnerware?
Rachel from United Kingdom asks
Hi, can you let me know the shrinkage percentage for this clay?
Marian from Ireland asks
Is this a stoneware clay?
Alex from Australia asks
Have purchased 25kg of your PF680 smooth black clay,I am wondering if it is suitable to be made into a casting slip and if so what is your recommended recipe for quantities of Soda Ash, Sodium Silicate, and Dispex. Thanks
Emanuela de Giorgio from Malta asks
Hello, I have this clay PF680 black smooth. I am looking for a good transparent glaze that I can use on it. In the past I used P3552 Transparent glossy (EH 09IT). However, it turned a dark brownish colour which is not the finish I was looking for. What transparent glaze do you suggest? thank you
Tina from United Kingdom asks
I have just purchased my first lot of Earthstone Professional PF680 Black Smooth, and one of the main reasons I am purchasing is for the colour: I am making unglazed sculptural pieces at the moment. On opening the bag I find that it is red, does the clay fire black, or have I got something else in the wrong bag?