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bciskepottery

Member Since 28 Jun 2010
Offline Last Active Nov 25 2014 08:03 PM
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Posts I've Made

In Topic: Firing of pots with cracks made with Sodium Silicate

25 November 2014 - 07:11 AM

The amount of sodium silicate you are using would not cause any damage to the kiln elements. Any residue that accumulates on the elements would burn off in the next firing. Most of the sodium is likely burned off when you are heating the sodium silicate solution with a propane torch or heat gun before you stretch out the form.

In Topic: Sub For Epk, Which Is Better: Tile 6 Or Om#4?

24 November 2014 - 09:32 PM

Tile 6 is a kaolin, as is EPK; OM#4 is a ball clay. A kaolin for a kaolin might be the better substitute. Or, make a test amount of both and see which turns out best.

In Topic: Differences Between Stoneware And Earthenware Body When Firing To 06

23 November 2014 - 06:52 PM

I work in lowfire and my stuff is vitreous, because I fire it at ^03 come glaze time. I fire to ^04 for bisque. Never once had a problem with leakage. :)


GP -- what earthenware are you using that vitrifies at cone 03/04? Most earthenwares I am familiar with are still rather porous at those temperatures. A vitrified clay body should be non-absorbent without any glazes.

In Topic: ^6 Copper Red Glaze Oxidation

23 November 2014 - 06:39 PM

John Britt's new book on Mid-fire Glazes has five artificial copper red recipes, using silicone carbide (600 mesh).

Tom Turner has done leading work in this area. http://www.tomturner...perRed_35DE.pdf

In Topic: New Potter: Advice Appreciated!

21 November 2014 - 10:45 PM

Before you can make $36K, you need sales. And, to make sales, you need inventory. So, $36K profit requires about $72K sales; and to make $72K in sales, you'll need about $144K in inventory. If you don't have inventory, you can't make sales and you can't make a profit.