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Everything posted by Roberta12

  1. Roberta12

    glazing in red and black

    I use a red underglaze from Amaco, Radient Red. Stays red to cone 6, oxidation. I believe the other manufacturers also have a nice red underglaze. Lovely work, by the way. Roberta
  2. Roberta12

    Age of dry materials

    A local potter passed away and his family is selling his house. The realtor knows me and asked if I would take a look at what is left in his studio to give the family an idea of value. The studio is neat and well organized and everything is well labeled. As far as equipment, he has an electric wheel which he modified but it runs very smoothly, he put a wooden board on the wheelhead and made his own wooden bats. The wheel weighs a TON because he poured concrete in the recessed area. But it would be a great wheel. There are bags of Custer feldspar, Neph Sy, and then tubs of cobalt carb, copper carb, tin ox, zinc ox, RIO, Gerstley, Manganese Di. I think I will make the family an offer and take all the dry chemicals. I don't think the gentleman threw much the last couple of years. The labels on the bags are from a supply place in Denver that is no longer in business. So these materials could be 5-10 years old. What would be the advice of this knowledgeable group as far as using these materials? Shelf life?? I will try to attach some pics..... Oh, and what is Ajax P? Roberta
  3. Roberta12

    Age of dry materials

    oh yeah, I did NOT mention the bags of clay at the gentleman's studio. No labeling, no boxes, nothing. A HUGE container of hard, very white clay. Just looking at it I would assume it is porcelain, and I know he mostly high fired, but unfortunately, I will probably have to pitch the clay. Labeling, yes, a very good idea. And Lee, we have made out a will, which is when we had the conversation with our kids. I am a labeler, but I think I will talk to a couple of other potter people that I could trust, and leave phone numbers for our family. I don't even have 45 years in this business and I still have a lot of stuff!!!!!
  4. Roberta12

    Age of dry materials

    I will not keep those red tubs. They are old lard buckets. Old is the word here. They are beginning to deteriorate. I think I have the wheel sold. Selling off some of the big bags o stuff just because I don't need all of it and limits on space. I am thinking of offering the family $100 for the dry materials and maybe see if I can get $50-75 for the wheel? I have to ask, do we all have plans in place for our pottery supplies and equipment if we are no longer around to use it?? I jokingly told our kids that my business and equipment was ALL THEIRS if I was gone. All I got was eye rolls. But, I guess I should think about someone to help them make good decisions.
  5. Roberta12

    Age of dry materials

    I am the only potter in this part of the valley who mixes glaze. Everyone else is commercial glazes. Including the college. But I did just email a friend in Steamboat with her own studio and teaching set up. And yes, there are a few unmarked tubs that I will dispose of. Thanks to everyone for their help.
  6. I just wanted to add to this thread by saying I have tried a lot of the continental Clays. They are very nice, throw well. Most, not all, of their clay bodies are rated for a wide range of temps. Super White is rated 5-9. I have used it and loved working with it, but all the glazes I used on it crazed. If not right away, then later. Their mid fire white is also quite nice to use. It crazed with the clear I was using. It crazed with all clears that I had mixed up. But did not craze with other glazes. Their mid range oxidation and the mid range oxidation with manganese are both very nice clays. I did not have crazing problems with them. I have tried to stay with clays that have a narrower range of firing temps. I seem to have fewer problems that way. I have my work and glazes dialed in with 3 Laguna clays right now. And mainly that is because it is easier for me to get those clays than the Continental clays. I use porcelain for a lot of my work, which is functional. Porcelain can be a very good everyday use clay. All of my pots go in the dishwasher and micro. I agree with Benzine about midfiring. (cone5/6) kiln repair/replacement is a cost of doing business, but you don't want to have to do it more often than necessary. Firing to cone 10 will accelerate that schedule! Roberta
  7. Roberta12

    Age of dry materials

    what do you think I should offer for the whole shebang? $200? Less, more?? I thought I would tell the son to ask for $50-100 for the wheel. How does that sound?
  8. Roberta12

    Age of dry materials

    Yes. I would feel fairly comfortable using supplies from this studio. Everything was clearly labled and in sections. There were a couple of tubs unlabeled, I will just pitch those. Being a midfire person, I have never come across Ajax in a recipe. What recipes use it? Yeah, I was excited when I saw the colorants and tin ox and zinc ox etc. Hadn't thought about a glaze book. I will ask.
  9. Roberta12

    Age of dry materials

    And two 50 pound bags of custer feldspar
  10. Roberta12

    Age of dry materials

    And....more pics
  11. Roberta12

    Mr. Sun

    Love the iridescent look of this piece!!
  12. Roberta12

    How would you make this?

    Gabby, are you talking about the Lynda Katz piece? Roberta
  13. Roberta12


    I really like this glaze!
  14. Roberta12


    This is lovely! Did you use a stencil or a real leaf?
  15. Roberta12

    Slab vase

    I like how you are spraying the underglaze! Do you thin it before you put it in the sprayer??
  16. Roberta12

    Table Top Wheels

    I bought a Shimpo Aspire last year, something small for transport for demos. I really like it. The only downside is the bat pins are not in the same place as on a regular wheel head, so you can't change out bats with every pot. But you can get more bats or just remove your work and place on a wareboard or drill holes in a different place....lots of options. Roberta
  17. @clay lover, I just made my journey into plaster mold making as well. I was taught to use Murphy's oil soap, but I am certain the mineral oil would be fine also! We had a little trouble with some of the dishes releasing. Once they were cooled, I just took a hammer to it and tap tap tapped and they released. Only one dish broke and that was ok. It also, was from a thrift store! I hope yours release! Roberta
  18. Roberta12

    Logo mugs: how to glaze?

    When I said brushing, I should have said smooshing. A very fine tip brush and the bisque slurps it up. It is very quick and only takes a quick wipe of the sponge to get the excess off each logo. The bisqued logo sort of wicks up the patina. The patina is watery and lasts forever. It seems to fire black. But when I first started making these mugs for them, I was not that good with bottles, tips, or underglazes. I should really give that a try again.
  19. Roberta12

    Logo mugs: how to glaze?

    Tori, your situation looks almost identical to what I have been doing for a small local business. I brush the Jill's Brown Patina into the lettering, using a damp sponge I wipe off the extra. I have discovered that latex works better than wax resist. As Min said, the wax in those small letters can be rather fiddly. The latex peels right off. After the latex is set, I glaze the rest of the cup. Here is Jill's Brown Patina Wash. The recipe is out of Mark Burleson's book Ceramic Glaze Handbook 2 tablespoons of Red Iron Oxide 1 tablespoon of yellow ochre 1 tablespoon of rutile 1 teaspoon of Cobalt carbonate 4 and 1/3 tablespoons gerstley Borate Mix equal parts by volume with water to the consistency of skim milk. Brush the patina onto the cracks and details of bisque fired clay. Wipe off the excess with a damp sponge. Fire to cone 5 in electric kiln. It can also be used underneath a transparent glaze. I fire to cone 6. I have had no problems. And I have used it under clear glazes with no problems. Roberta
  20. I use mostly rags. I have rags for glazing, rags for throwing, Sometime paper towels, but not often. In the summer (warmer weather) I will soak the towels, rinse them outside and once they are clean, put them in the washer. But usually I just take those rags to the local laundry. That's what the laundry is there for!!
  21. Roberta12

    Why make functional ware?

    The function of ceramic products drew me in immediately. Not only could I "design" (not much designing in the beginning) the ware, execute the making, take it to completion, I could USE it!!! I had friends over for lunch last week. Salad lunch. My favorite salad plates are the first ones I made. They are large, clunky, but almost like a pasta bowl, so they are great for salads. We had cheese, crackers, wine, just a lovely day. As they were leaving, one friend asked if I would make her more espresso cups, and I asked about what clay, glaze, etc. She said, "I really don't want things to match. I like it when everything is different and unique. I loved the look of your table today with the plates, the different cups for wine, the platter for the cheese and crackers. That is what I like!" Yes, she is the subculture that gets it. She gave me the highest compliment possible. I was humbled. Roberta
  22. Roberta12

    Thoughts on Pricing

    The couple of shops I have been in here in Colorado are more in line with Callie's description. Clean, well run, helpful staff. Many people over 50 are looking for some help with sleep issues, pain, anxiety, etc. Shops are aware that is part of their customer base. What Callie said about having a conversation with the owner is what I did with yarn bowls. I met with several knitting groups and asked what they would like in a yarn bowl. I got lots of great feedback and designed my bowls accordingly. It's a strategy that worked for me. Roberta
  23. Roberta12

    Bailey 22" Mini Might II Table Roller

    I have a table top North Star slab roller. Two rollers. I bought it 4 years ago and I have to say it has more than paid for itself. If I were to purchase again I would get a larger one. I bought the 16 inch because of space considerations. I would get the 24 in if I were to do it again. If you do very much handbuilding at all, you will love having a slab roller. Roberta
  24. Roberta12

    Firing with glass

    I think that is called annealing? a long slow cool to strengthen the glass. I hadn't really thought about that, but when you glaze fire with the glass in the pot, the temp is much higher than what you would use for glass work. But what if you put the glass pieces in an already glazed piece and just took it up to glass temps and did a slow cool? Glass temp would be around 1400 or so. Hmmm food for thought! And Nancy Lee, I think all potters LOVE a good experiment. Maybe this could be yours, even if you didn't sell them, you could just do it to scratch that curiosity itch!

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