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Kathy321

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About Kathy321

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  1. ^6 Copper Red Glaze Oxidation

    Thanks for all the responses and suggestions. Think I will pick up John Britt's book, go shopping and do some tests!
  2. I just came across and article on cone 6 copper red oxidation glazes by Robert S. & Beatrice Pearson: http://tinyurl.com/n4hubb6(and attached) Before I start experimenting... Has anyone tried any of these recipes and know how they behave? The recipes use General Colour Frits 114, 146, 154 & 156. Does anyone know if there are Ferro frits that would substitute? I would also like to know whether they are food safe. Thanks! Kathy
  3. Thanks for suggestions! Unfortunately my kiln is in my house (seemed like a good idea at the time) so venting is a problem. It is vented with ducting and a fan but a bit leaky around the lid - may have to add a hood vent.
  4. I was thinking of pre-firing, to burn out the combustibles in say an old propane gas oven outdoors since that would be easy to set up. The idea being that 400 or 500 degrees would be hot enough to do the trick.
  5. I have been reading Katheen Standen's book 'Additions to Clay Bodies'. Although it sounds like she is using an electric kiln in at least some cases, she doesn't talk much in the book about firing clay containing organic or combustible additions. I would like to try some of the ideas in the book but am wary of ruining my electric kiln by firing combustibles. Can anyone with knowledge of this book or the techniques described comment on this? Thanks, Kathy
  6. Mystery Chemicals

    Thanks to all of you for taking the time to help me out with all this advice! They mystery white powders are over 20 lbs or so and yes, that does narrow it down quite a bit. I did inherit these, though they were labeled at the time or I wouldn't have taken them. It could be they were masking tape labels that got old and fell off. I had a flood here a few years ago (somewhat alarming when the river suddenly comes through your front door on a dark night when you can't see what's happening! It turned out to be caused by a several km long ice jam but that's another story;-) and there was a mad rush of throwing large heavy sacks among other things upstairs. I kept what stayed dry but suspect that might be when the labels disappeared. I would really rather not throw them out so will try these suggestions and then probably try the narrowed down results in small batches of glaze. Kathy
  7. Mystery Chemicals

    I have several large bags of glaze chemicals that for various unexpected and unknown reasons, have lost their labels. After narrowing down the possibilities by visual examination, can anyone suggest how I might determine more definitely what they are?
  8. Thermocouple Installation

    Thank you all for the very instructional and useful answers. Mark C. it took me a few minutes to figure out you meant the Robertson head screws;-) I remember now that you don't have them south of the border - too bad as they are the best!
  9. I ;am installing a new thermocouple in my kiln. There is a bare ground wire from the kiln controller to the thermocouple along with the red and the yellow clad wires. Can anyone tell me what to do with the ground wire? Thanks, Kathy
  10. I built this trap with two old flat sided 5 gallon plastic buckets (easier to cut out and seal the openings). Since it is in the basement, I also added an anti backflow valve between the buckets and where the drainpipe ties into the main house drainpipe. I think it is still a good idea to pre-rinse everything before it goes into the sink as described in previous posts. It would be a good idea to check on the silicone seals regularly in case it seal springs a leak. Also, make sure you have enough of a drop in elevation between the exit from the bucket and the connection to the main drainpipe. I could email you a photo of mine if you are interested.
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