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Showing results for tags 'kaolin'.
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Hi there, I'm new on this forum and quite new to ceramics and glazes in general so please excuse my lack of knowledge... I've been making ash glazes using this Katherine Pleydell-Bouverie nuka glaze recipe; Mixed woodash 33.0 Feldspar 33.0 Kaolin 16.5 Ball Clay 16.5 On a recent trip to China I aquired some rice straw ash and I was really excited to turn this into a glaze. From what I read rice straw ash should be very high in silica too like other (mixed) wood ashes so I used the same recipe. The results came out rather different then expected or other wood ash based glazes I made using the same recipe. It looks like the glaze didn't melt or run at all. Please see photos for your reference. It seems like there is a lack of silica and fluxed present in the glaze. I want to do some line testing by adding silica in 10% increments and another one adding flux like gersley borate but perhaps somebody here sees something I'm missing or has other ideas. The other thing that could be possible is that I misunderstood in China and I've acquired rice HULL ash instead of rice straw ash. I'm firing in an electric kiln on 1240 degrees and have gotton desirible effects with mixed wood ash glazes based on the same recipe and firing. Thank you for any suggestions or advice.
Hi! I've been researching on what the best clay composition I can use for floor tiles, looking at 1-3% water absorption after firing. A supplier offered me this clay composition (see photo). It's Kaolin clay, with 87-88% whiteness. Our idea is that we wouldn't have to go through applying engobe on top of the tile to make the surface white, since the clay is pretty white already we can print on it directly after drying (is this right?) We're starting a bespoke tile company, and we are quite new at this so we would definitely have to hire experts to help plan everything. I was told this is ready to use clay, just use the hydraulic press with it and it's good to go. Any clay nerds around who can help? Thank you so much in advance! We have absolutely no knowledge of the proper composition for this!
I dug some clay from my birthplace to utilize in creating some of my work. I had the good fortune of having someone local that could test it for me so I would know all that it was in it. There were few trace elements/minerals but its primarily kaolin! :-) I'm wondering if anyone has fired locally dug clay and if so if you have suggestions on what temp to fire it to. Thanks for input! Debi Lane
Hi there, I read recently somewhere about a simple glaze recipe consisting of 50/50 Kaolin and Nephyline Syenite. Trouble is that I cannot remember where I think I read this, and would like confirmation that this is an actual glaze recipe, and that it can be used on Feeney's Buff Raku Trachyte clay, and fired at cone 9 in oxidation atmosphere. Have tried to look into it but have had no luck. Any help you could give me would be really appreciated. Cheers, Ella