Ben Posted January 5, 2015 Report Share Posted January 5, 2015 I have access to local earthenware and I'm wondering about using it as an ingredient in a cone six-ish clay body for glazed functional wares. This clay fires red at cone04 but by cone six it has turned dark brown and started to bloat. What are the pros and cons? Thanks all. Link to comment Share on other sites More sharing options...
Callie Beller Diesel Posted January 6, 2015 Report Share Posted January 6, 2015 Sort of depends on how much you want to put in, and to what end. I've put 5% red art into a soda fire body for cone 10 for flashing effects, and had no problems. But I don't think that's what you're after. Make a few tests. See what happens. Link to comment Share on other sites More sharing options...
Biglou13 Posted January 6, 2015 Report Share Posted January 6, 2015 Pros it's local. And locally sourced is a great sales point...... Local makes eco sense Sense of owner ship It's a unique clay body Prolly end up inexpensive Cons Lots of testing Will source stay consistent Lots of work to make clay... Even with pug mill/ mixer still lots of work. Cost. If you think about labor cost... You have to make large batches to make it worth time. If you can ever justify cost at all. Not sure of nature of your clay. But I've found that gold art Is great to stabilize the unknowns. Have you altered bisque many of the commercial dark clays require different bisque cycles. Link to comment Share on other sites More sharing options...
Tyler Miller Posted January 6, 2015 Report Share Posted January 6, 2015 Jonathan Walburg out of Washburn, Wisconsin mixes local clay into a porcelaneous body he uses for a good deal of his work, he might be a good guy to talk to about this. Here's his website: http://www.jpottery.com/index.html Shoot him an email. He's a really great guy, really friendly and knowledgable. Link to comment Share on other sites More sharing options...
Ben Posted January 6, 2015 Author Report Share Posted January 6, 2015 BigLou, I have not altered my bisque. This local clay simply got included in firings as test tiles. What different bisque cycles are needed. This is new info for me that i am unfamiliar with. How are they different? Link to comment Share on other sites More sharing options...
neilestrick Posted January 6, 2015 Report Share Posted January 6, 2015 Earthenware clay is a good way to get iron into a higher firing body. Better, than just adding iron oxide, which tends to make bodies brittle. You'll just have to run some tests to find out how much you need to add to get the results you want. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted January 6, 2015 Report Share Posted January 6, 2015 I used it as an additive for color as Neil mentions above. I used about 5% into a ^6 stoneware body. Marcia Link to comment Share on other sites More sharing options...
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