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Can you remove wax resist from leather hard clay?


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#1 Pugaboo

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Posted 24 March 2013 - 05:17 PM

I have been playing around trying to figure out how stuff works and reacts etc. I brushed some wax resist on a leatherhard ( leaning towards the dryer end of leatherhard) piece of clay. I wanted to practice carving into it to make fine lines and such so I could brush thin underglaze into the grooves then bisque fire. It did not go well the wax just peeled right off when I tried gently carving a line through it. Since it wasn't working I decided to just scrap the whole square of wax off the clay and that got me to thinking... can you scrape wax resist off leather hard clay? I know you have to refire bisqueware to remove the wax but would kind of like to know if this also applies to unfired clay. I was able to remove all of the test patch I did, or at least it appears to be gone as I removed a thin layer of clay during the scraping and now the area is a dull gray once more and water did not bead up when I wiped it with a sponge. So is the wax gone or is it still lurking there somewhere?

Terry
The world is but a canvas to the imagination - Henry David Thoreau

#2 TypicalGirl

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Posted 25 March 2013 - 06:42 PM

Pugaboo,
Can't help much in the wax resist dept as I don't use it, but for the incising you were trying, you might try brushing on shellac instead of wax and then try carving through that.
Cathi Newlin, Angels Camp, Ca
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#3 Marcia Selsor

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Posted 25 March 2013 - 07:30 PM

The technique you were trying would work using wax resist on bisque, over a glaze and scratching the surface , then sponge on an oxide into the lines.
Wax on wet/leather hard clay will peel off as you describe.
To remove wax, fire the piece up to 500 degrees or a bit hotter to burn off the wax. Or just go ahead an bisque fire it.

Marcia

#4 Pugaboo

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Posted 26 March 2013 - 05:32 PM

Thank you
The world is but a canvas to the imagination - Henry David Thoreau




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