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Mudlark

Member Since 04 Apr 2010
Offline Last Active Jan 17 2014 01:09 AM
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#46497 Now That I Know How To Cut Ceramics, How To Drill Them?

Posted by Mudlark on 23 November 2013 - 11:31 PM

Lapidery suppliers stock silicone carbide grit. I use 600 mesh as I have it on hand having  bought it for another purpose, a coarser mesh would do just as well.

 

 Brazing rod is used  to join metals by heat and can be bought at plumbing suppliers, use one that is not covered in a flux, it looks like brass rod. Any non ferrous metal rod of the desired diameter will do.

 

Plasticene is a trade name for  an oil based modelling clay used by sculptors and model makers not to mention school kids. It's used as it does not wash away with the cooling water as potters clay does.




#28805 temp for opening kiln?

Posted by Mudlark on 02 February 2013 - 10:32 PM

Dunting is a firing/cooling fault and occurs at the cristobalite inversion temp of 226 deg C and at the siica inversion temp of 573 deg C, Dunting is not a glaze fault.It occurs in unglazed ware during both bisque and higher firings.It is one of the major problems to be considered when formulating flame proof bodies.


#337 Reclaiming Clay

Posted by Mudlark on 11 April 2010 - 10:23 PM

I work with commercially prepared earthenware clay and sometimes slipcast with a different brand. The broken pieces have ended up in the same bucket. Will my reclaimed clay be ruined?