I am new new new. decades ago I helped my grandmother do casting at her studio, and I have started making my own projects, including casting and hand building. I initially had some difficulty with adheison with my slip and scoring until I learned about the paper/slip mixtures. Now things seem firmly affixed, but when I have some material push out of a joint, or in one case I used the mix to fix a crack that developed, I find that the slip mixture is really tough compared to the surrounding greenware and a little hard to smooth, reshape or otherise clean up the stuff that has pushed out. Tips?
Repair Of Cast Greenware How To Smooth
Posted 13 February 2014 - 05:40 PM
If the clay body is smooth, just use a sponge. Or scrape it down with a fettling knife first. Best to scrape on moist clay to avoid making a lot of dust.
Kiln Repair Tech
Owner, Neil Estrick Gallery, LLC
Posted 13 February 2014 - 06:14 PM
The trouble I am having is the transition between the two areas, the paper/mix is so much tougher that the clay body comes away at a much faster rate. I am having difficulty blending the areas because of the difference. Partly because of my lack of experience and partly because i am used to working in concrete, I seem to be using more slip than probably necessary to afix handles and I am having to blend the joint. THis may all be moot becuase I have not yet seen the outcome under glaze. Maybe the glaze covers more of the blemishes than I think. To be honest here, I nearly cried with joy when, after about 6 tries with the previous method, I finally got a handle to stick with the paper slip.
Posted 14 February 2014 - 10:28 AM
I don't know if this will work on regular slipware but if I have an area that I am having trouble smoothing I will bisque fire it and then smooth it with a stone bit on my dremel tool. I have used this technique with porcelain slipware, it's more work but the seems are invisible. Denice
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