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Hi! I was reclaiming about 500 lbs of clay in the past few days. While I was kneading, i noticed tiny tiny bits of plaster, wood, and other foreign contaminates :huh: . Is it possible to save this clay or would it be easier just to chunk it all out and start fresh with new? also. is it possible to clean a contaminated clear glaze? Thanks everyone  

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I'd be a bit concerned about the plaster in the reclaim; that could cause blowouts during firing.  You might want to try a small quantity and do a test firing -- bisque and glaze before committing to the full 500 lbs.

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CLN ;

Unfortunately, your clay is toast. With plaster in the clay you will get tiny spit-outs or pop- outs of annoying white plaster chunks months after your pieces have been fired. This is in the bisque and glaze.

You can use the clay to make a model to cast in plaster, or you can mix it up with straw and cement and coat your outdoor gas kiln.Otherwise, bye-bye.

I have to agree with Chris on this one, even though I am the clay recycling king.Some things you just have to say good-bye to.

TJR.

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Im  thinking the clay is a goner too. Im pretty sure the glaze was contaminated when i bought it. it has tiny shredded peices of grass or something like that. Ive also noticed in some of the glaze fired peices, they almost look speckled because of the black spots of carbon in the glaze  <_<

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As everyone here has said, toast! I had some clay years ago get some plaster dust from renovations in the studio-My covered clay buckets. Seems the people plastering found the lids to be excellent places to pile up their mud and move it from place to place. Then when done, scraped out what they could and put the lids back on the buckets.  I cleaned as much as I could off, and then pugged the clay. Big mistake. Student pots came out with spalls all over them. When you looked closely at the bisque, you would see a little cracked out circle with a little white speck deep in the wall of the pot. We glazed them, and were OK, but could you imagine that in your studio? After that fiasco I took great care with the use of plaster in the studio, and I even covered my clay buckets with damp towels when on long breaks.

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Too much of a risk, when you put so much into your work, and I can't be sure that any of the plaster has got into it , so think I will have to say a fond farewell to it ....

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Hi! I was reclaiming about 500 lbs of clay in the past few days. While I was kneading, i noticed tiny tiny bits of plaster, wood, and other foreign contaminates :huh: . Is it possible to save this clay or would it be easier just to chunk it all out and start fresh with new? also. is it possible to clean a contaminated clear glaze? Thanks everyone  

Hey,

 

 

      If I had 500 lbs. of contaminated clay I would probably make items which wouldn't matter.  Two items come to mind would

dog food or water bowls to be donated to the Humane shelters... the other item would be flower pots to be given away....

I wouldn't sell anything with that clay.  Five hundred pounds of clay costs about $150.00....  only you can decide if its worth it.

Good luck...

Alabama

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