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Wilboy64

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About Wilboy64

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  • Birthday 01/30/1964

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  1. Need a little input on a issue we are having with a new clay to us. I will try to give as much information as possible and would greatly appreciate your help. My wife and I have been making pottery for over 8 years. We started out using Highwater 306 ,153 and Standard 108 and over the years tried others from Starworks. We use a range of glazes we mix ourselves. Our glazes have been borrowed from other potters' and have been very good to us over the years.(Tenmoku. Iron Red, Hayden Red. Egg shell.) This year we tried some different clays from Standard Clay. (181, 182, 192. 378) We are wondering if anyone has had any issues with the Standard 192? We have always bisked at cone 04 and fired electric oxidation to cone 8. That being said we fired a group of wares with our Oride glaze with the formula as follows: Custer felspar 29.3%, Silica 24%, Whiting 21.2%, Talc 7.4%, EPK 11.9%, Bone Ash 1.0%, Black Copper Oxide 5.2% We noticed as the wares were cooling right out of the kiln and then up to a week later sitting on the shelves in the studio that the Oribe glaze on the wares made of 192 clay started shivering. We also had a couple of mugs with Egg Shell glaze made from 192 clay that had a couple of handles that had spots that shivered . We see no problems with other glazes on clays other than the 192. We did have some pieces that we used the Oribe on other than the 192 and it appears we have no issue with them. We even put them in the freezer and then shocked them with hot water and no cracking or shivering has occured on them. Question, Do we ditch the Standard 192 or do we change our glaze? How can we feel we have made a safe choice?
  2. Up to my neck in mud>>>

  3. Hello all, I just picked up a Skutt Kiln KM-1027-3 that is a 208 volt single phase that is very tired. I was hoping to breath new life into it but I am having second thoughts. I am asking for your comments. The first thing I want to do is to bench test the Electronic controller with it not connetected to the elements to see if the keypad and controller will work. One of my concerns is that I will be changing to 240 sinlge pase instead of 208. In talking with Skutt support they tell me that an element replacement is all that is required o convert. I just wonder if anyone has tried this without changing the little control transformer? I only see one part number for the transformer in all the part listings by Skutt. I think their part number is #1518 if I look at it correctly. I can see the output on the transformer increasing by stepping up the input and wonder will the controll panel stand the change or be toasted????? Th reasoning for the above is I do not want to buy $300 in elements and have a controller that is not happy. Last about 90%of the brick have no lip that holds the element inplace. The ledge is still there. I guess with the years of use they have just burt off. (3 inch brick),I know you can use pins to hold elements but is it worth pinning to that extent or is it even worth replacing that may bricks? Has anyone ever sanded deeper to make new grooves? How about repairing the ledge with new refractory cement? I am a very skilled person in most mechanical ean electrical trades and hate to be defeated by someting made by man. If I can figure a way to repair I would never replace. Thanks for your thoughts.
  4. Thanks Marcia, I am reading more and have the books you suggested. Do I understand that the formula I listed would be considered a base formula and I would add the color to it?
  5. I am new to mixing glazes and wonder if the formulas I am looking at on most web posting include a base glaze formula with the colorant added to make a complete mixed glaze or if the formula must be mixed and added to a base glaze ? This is an example I copied from Central Clay, Shino cone 9 to 12 (ox. & red.) F4 feldspar-15 Spodumene-13 Soda ash-3 Nepheline syenite-50 Ball clay-16 EPK-3 Help please give me the right direction to follow........ New but trying hard to get it right.
  6. I have several 25lb. bags of clay that I have had less than a month and when I go to get one out the clay is growing gray mold on it. Is this normal??? Can I add a mixture of Clorox / water to the clay to kill it? What is the normal way to handle this problem?
  7. I agree and have seen some of the same. If that is true then the measurements must be in grams for the formulations.
  8. http://www.aug.edu/~artpxh/Class%20files/Ceramics/HighFireGlazeList.pdf This is a Website of the formulas I am looking at. Can you help?
  9. I have some formulations from ASU and part of them are in percentages and part show (kpg). Can anyone tell me what this means? Most of the ingredients look like they are measured in grams that have kpg. I am jus not clear what I am seeing.
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