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#1
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Slip Casting Slips
Looks like I will have to take a few weeks (months? the chiropractor
says three months, hopefully it won't be that long) off from working on the wheel as my back heals (involved in a little fender-bender last weekend, minor back injuries). So, since I'm not about to give up clay while I get better, I've decided to continue working with a slip cast mold I made a few weeks ago. In the past I've used cone 04 casting slip that a friend gave me because he bought too much by accident. I have been firing my other work to cone 6, and I would like to avoid firing to multiple temperatures for different pieces if at all possible. I bought some cone 6 porcelain-like casting slip from the local pottery supply store. (They only had one type of cone 6 slip available) It is some weird stuff! It smells BAD, a little like latex resist (I use occasionally instead of wax), a fairly fishy smell. It has some black mold in it (around the top) (I know mold isn't unusual for clay, but my 04 slip never molded before). Has anyone had any experience with a white cone six casting slip that they really liked? Any brand / type recommendations would be greatly appreciated! Thanks! (For a peak at the types of pots I am slip casting, check out the 'more pots' page of my website: www.freewebs.com/annaspots) |
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#2
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Slip Casting Slips
Dear Anna,
Thanks for pointing out your website. I very much enjoy your work, I love the softness you have achieved. By the way Nos. 1 to 7 wouldn't enlarge from the thumbnails. Everything else was fine. Your description of the casting slip suggests that it is very old. Did it cast all right? Steve Bath UK In article .com, anna writes Looks like I will have to take a few weeks (months? the chiropractor says three months, hopefully it won't be that long) off from working on the wheel as my back heals (involved in a little fender-bender last weekend, minor back injuries). So, since I'm not about to give up clay while I get better, I've decided to continue working with a slip cast mold I made a few weeks ago. In the past I've used cone 04 casting slip that a friend gave me because he bought too much by accident. I have been firing my other work to cone 6, and I would like to avoid firing to multiple temperatures for different pieces if at all possible. I bought some cone 6 porcelain-like casting slip from the local pottery supply store. (They only had one type of cone 6 slip available) It is some weird stuff! It smells BAD, a little like latex resist (I use occasionally instead of wax), a fairly fishy smell. It has some black mold in it (around the top) (I know mold isn't unusual for clay, but my 04 slip never molded before). Has anyone had any experience with a white cone six casting slip that they really liked? Any brand / type recommendations would be greatly appreciated! Thanks! (For a peak at the types of pots I am slip casting, check out the 'more pots' page of my website: www.freewebs.com/annaspots) -- Steve Mills Bath UK |
#3
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Slip Casting Slips
Steve,
So glad you enjoyed the website! I have just recently got it up and running, so it is really nice to hear positive feed back about it. I will look into pics #1-7, thanks for letting me know. Just to clarify, only the "environmentally friendly styrofoam cups" are slipcast, everything else is either wheel thrown and altered or hand built. As for the slip, I have only poured with it once, and it was the first pouring for a new mold I made (I have heard the first pour of a new mold is almost always less than stellar). The major problem that I did notice was the slip seemed to dry more slowly on the seams, leaving them wet and VERY easily torn. I am hardly a pro at slip casting, and this is only the third mold I've made. Is the wetness around the seams a common problem? Could it be old slip? Do you have a type of cone 6 casting slip you really love? |
#4
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Slip Casting Slips
Hi Anna,
love your fluid pots. How old is the mould that you are using? The smell you describe is probably amonia. We somtimes get a discolouration and pongy sulpherous smell from our older 'paper clay' casting slip so I suspect your casting slip has something organic in it. Andy |
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