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kevinpleong

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  1. Wiping it down doesn’t seem to really help. I don’t think the vinegar is the problem. To answer your question though, I took an online workshop with Antoinette Badenhorst and she said that you should add a few tablespoons of vinegar to your throwing water if you are using porcelain because porcelain particles are very light and it will sink and separate. Using vinegar deflocculates the water and helps it stay in suspension. This is an excerpt from Ceramic Arts Network by Antoinette Badenhorst, “Adding a spoonful of vinegar in the throwing water gently deflocculates the clay.”
  2. I bought a brand new Shimpo Whisper VL in the middle of January. I have been using a bat system and have only really thrown porcelain on the wheel. I don’t clean the splash pan very often but I only use a bat when I throw. Yesterday while I was cleaning the wheel I noticed black stuff coming off the wheel and it feels abrasive. I don’t know what it is or how to get rid of it. I use porcelain so there is some vinegar in the throwing water but I didn’t think that would hurt anything and I usually have a bat on top so I don’t know why/what or how to get rid of it. Thanks
  3. I want to make some of my own brushes. I hear bamboo is good to use for a barrel. I know that you can use pvc but I want to make some brushes with bamboo handles. Does anyone know where I can buy some bamboo sticks to use as my bamboo barrel. Also what kinds of hair would you use? for glazing, slip decoration, underglaze work, etc. Thanks
  4. Yes and no. My understanding is that there are many commercial cone 6 clay that technically are not fully vitrified. They still allow them to be produced but they still technically have up to 2% absorption.
  5. @Callie Beller DieselI want to produce more work but don't do as much right now as I am at a community studio or at a community college mostly just focusing on ceramics. Both places are not the easiest to work at as there open hours are weird. I appreciate how vitrified pieces are at cone 10. At the community art center I have been mainly using stains either in slips or as a body stain. Unfortunately, stains are pretty expensive (although cobalt is too) but that is the only way for me to get nice colors at the community art center. I just started using glazes since I just had my first community college hand building class and their reduction kiln produces much better glazes. The community art center really only has browns and really dark blues, greens and reds. They are all very earthy and as stated above in another reply I'm not sure if that is because they are not firing the kilns properly, the glazes they make aren't good, or they just aren't making the glazes consistent. Whenever I fire at my community art center and try replicating a glaze I liked it almost always turns out a different color than the first time. I know a lot of people enjoy reduction kilns but from my experience at my local art center I can't quite understand why as most of the time the glazes turn out a lot darker and a lot more earthy.
  6. I want to produce more work but don't do as much right now as I am at a community studio or at a community college mostly just focusing on ceramics. I appreciate cone 10 because the clay is completely vitrified at that point. At the community art center I have been mainly using stains either as slips or as a body stain. Unfortunately, stains are pretty expensive but that is the only way for me to get nice colors at the community art center. I just started using glazes since I just had my first community college hand building class and their reduction kiln produces much better glazes. The community art center really only has browns and really dark blues, greens and reds. They are all very earthy and as stated above in another reply I'm not sure if that is because they are not firing the kilns properly, the glazes they make aren't good, or they just aren't consistant. Whenever I fire at my community art center and try and replicate a glaze I liked it almost always turns out a different color than the first time.
  7. I just finished a hand building class at Foothill College in Los Altos, Ca. I am going to be taking a wheel throwing class there this winder quarter. I have a community studio that is about 3 blocks away from me (about 10 mins) which is amazing. The only problem is they have an oxidation and reduction kiln but the glazes are very dark and mostly browns in the reduction kiln. I am not sure whether this is because of the glazes or the way they fire the reduction kiln. For the most part, I like the glazes at Foothill college, the closest community college to me, and they only do reduction firings to cone 10. I love the reductions at Foothill but only use the oxidation kiln at the local community art center.
  8. How you would fire your pieces to account for the once fire? I feel like you couldn't do it as quickly as would a bisque (biscuit) firing. Do you have to formulate your glazes any differently? Do you have to do much differently doing a once fire and can you use the same glazes and regular slips as you would normally? When would you glaze pieces for once firing? Thanks in advance
  9. Hi, I am at a community studio currently and would like to get my own kiln soon but not sure what kind is the best for my work and what the differences between the types are. I was wondering if someone would be nice enough to explain what the difference between wood firing, gas, electric, reduction, and oxidation kilns is. Thanks in advance
  10. Thank you. That is a concern which is why I also bought the coral velvet underglaze and I purchased the pink speedball underglaze. Both say they go to cone 10 and the there is a cone 10 test tile image on the website so I’m hoping one of them will work. Thanks for the help.
  11. I understand how to make an oxide wash using water and oxide. I have a bunch made up. I have a rolling pin that I have been using to roll out some cherry blossom mugs. Unfortunately I want to use pink as the color and at cone 10 it usually burns out... I believe that many under-glazes are formulated so they don't burn out. I bought the pink Speedball under glaze which is rated to cone 10. I want to be able to paint the under glaze on my piece and be able to see the texture.
  12. I work at a high fire studio and was wondering if anyone had any techniques on how to make a under glaze wash so you can still see the texture underneath?
  13. Lightly use a pony roller to help join. Use vinegar or magic water to keep the joins nice and tight.
  14. I live in California and want to make some mugs. I was wondering if anyone has any ideas of where I can get different diameter tubes to make the form. I want to be able to make some mugs and need a straight cylinder. I need different size diameter tubes and was wondering if anyone had an idea of where I can get some. Thanks
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