Biglou13 Posted November 6, 2014 Report Share Posted November 6, 2014 Any one ever use it in clay body? Link to comment Share on other sites More sharing options...
neilestrick Posted November 6, 2014 Report Share Posted November 6, 2014 Cer is Veegum with CMC in it. I'm not sure how that CMC would behave in a clay body. I'm thinking it would be a bad thing, though. Vee Gum T is great in clay bodies, though. I used to use a porcelain that had it and it made a world of difference in the plasticity of the body. Link to comment Share on other sites More sharing options...
Bob Coyle Posted November 6, 2014 Report Share Posted November 6, 2014 CMC is fine in glazes but not whole clay bodies. It is expensive and will burn out at low temperature forming CO2... not a good thing to be gassing out of a clay body. If you want to modify the rheology of the clay, stick with the inorganic additives. Link to comment Share on other sites More sharing options...
neilestrick Posted November 6, 2014 Report Share Posted November 6, 2014 I think it will also mess up the workability of the clay, since it holds so much water. Link to comment Share on other sites More sharing options...
Biglou13 Posted November 7, 2014 Author Report Share Posted November 7, 2014 I was given some and only have use for vee gum t, not cer The cer part is organic, an dim told will "spoil" out with out preservative. Part of me was thinking if clay was aged long enough this would add plasticity.......? What is you blunging process for,vee gum t? Link to comment Share on other sites More sharing options...
neilestrick Posted November 7, 2014 Report Share Posted November 7, 2014 For VeeGumT, soak it in water overnight, then mix the crap out of it. If you're doing a small amount run a blender for a couple of minutes. For a big batch you can use a drill mixer but you'll have to run it longer. I would go at least 10 minutes. Then use the slurry as part of the water when making your clay. The idea is that you want it to disperse really well. Without blunging it will clump up, since clay mixers don't really do a very good job of dispersing small amounts of additives in a large batch. Link to comment Share on other sites More sharing options...
Biglou13 Posted November 8, 2014 Author Report Share Posted November 8, 2014 I ended up using stick blender and hot water. It was in suspension...... I expected it to thicken up more over night but not much difference.... Which brings me to next question bentonite. Many who make clay don't blunge their bentonite what's your opinion... Also I was told veegum T is stronger than bentonite what is replacement ratio? Link to comment Share on other sites More sharing options...
neilestrick Posted November 8, 2014 Report Share Posted November 8, 2014 I think it's a fairly direct replacement, as I've always used 2% for both. It seems like bentonite disperses better, but you have to dry mix it really well. Link to comment Share on other sites More sharing options...
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