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Pres

Member Since 02 Apr 2010
Offline Last Active Today, 09:45 AM
****-

Posts I've Made

In Topic: Refiring Glaze - Food Safe?

Today, 09:31 AM

I agree with John, but if you like the piece, fix it, and use it at home.  I have some bowls that we use at the house from earlier years, no cracks in bowl, but cracked underneath. If I tried to remove them now, it would be grounds for divorce as my wife loves them, and uses them to mix up all sorts of cookie dough at Christmas time and uses them for marinating at other times. They really won't be a problem for your home use if no cracked through.


In Topic: Finally! I Am Learning To Post Pictures!

Yesterday, 10:44 AM

 

bruce, i am sorry that i do not read chemical formulas. please, what does this really mean in ordinary terms?

 

just in case Bruce doesn't see this I'll jump in. In ordinary terms Roy reformulated it and his version was tested for cobalt leaching and Hesselbreth says it should be okay for functional pots. The main change Roy made was decrease the cobalt and add a titch of strontium.

Roy's recipe as on the link Bruce posted is:

 

Ferro Frit 3134............. 37.00
Custer Feldspar............. 16.00

Strontium Carbonate......... 4.00

EP Kaolin................... 26.00
Silica...................... 17.00

Cobalt Carbonate............ 2.50
Rutile...................... 4.50
=========
107.00

 

I'm in stitches over a titch of Strontium! :P


In Topic: Market Stall

21 May 2015 - 03:29 PM

Folks, I am going to move this thread to the f_icon.png

Business, Marketing, and Accounting

 

best,

Pres


In Topic: Manual Sitter Vs Digital Controller; Your Preference?

20 May 2015 - 08:09 AM

I used to do the same at school when I wanted a longer cool down for more crystallization. In the long run the setter-less kiln worked well for me when getting a good nights sleep was not as important. However, these days I need my beauty rest! ;)


In Topic: Manual Sitter Vs Digital Controller; Your Preference?

19 May 2015 - 10:56 PM

Alas, by now you all know that I fire with cone pack in an electric kiln. No setter, no electronic gizmo. Kiln is probably one of the only ones L&L sold without one. I have used setters when teaching HS, and used electronic programmable controllers. I would  prefer the controller over the setter because I like to fire down. The setter just doesn't allow that. That said, I have found that a thicker lid will allow for slower cooling, but I still ramp down by hand using temperature color to judge.