Additives To Cone 6 Clay To Make It Cone 10
Posted 22 July 2010 - 03:37 PM
I don't sit idle so for my first 50 pounds I added 10% EPK, 10% fire clay to the dried and broken up b-mix. Do you think that will work to cone 10? I will let you know.
Posted 25 July 2010 - 01:51 PM
I was given a lump of earthenware and a lump of Chamotte and told to make something for the International Show at the end of our residency.
I mixed the two lumps with an equal addition of Baltic sand and tested it. It fired to ^10.
Chamotte is a high fire hand building clay used but artists of the former Soviet Artists Union for large subway murals or Opera house murals..
It is very high temperature and full of huge chunks of grog.
It sound like your additives of Fire Clay and EPK are on the right track. Test fire some first. That is whatI would have suggested to add to the ^6 clay.
Gold Art is a good plastic stoneware clay in case you lose too much elasticity.
Montana State University-Billings
Charter Member and Past President of Potters Council
Posted 30 July 2010 - 10:57 AM
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