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August 2006    Issue #41
Published by
Gary R. Ferguson – Raku Artist
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In This Issue

* While the Smoke Clears

* How'd they do that?

* Water Logged Glaze?

* Smoking the Neighbors

* Raku in the News – William K. Turner

* Raku Links

* Workshops - Arizona

* Pottery Business Available - Utah

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* How'd they do that?

A while back I had a reader send me a photo of a glaze with

the hopes that someone would know a recipe for the glaze.

The picture can be seen at:

http://www.garyrferguson.com/justrakuarticles/misc/zion_mystery_glaze.htm

Well another reader saw the picture and had a new question:

"How did she get the coppery lines affect?"

It is a great affect and this result (or something similar)

could be achieved relatively easily.

First the piece is covered with a glaze, generally quite

thin. This is often done via spraying or dipping the

piece. Then another glaze is drizzled over the first

glaze, which is much thicker.

Now the second glaze may be the same glaze or it may be a

completely different glaze. Often a matte or semi-matte

glaze is used as the base and a glossier glaze is the one

drizzled over the top.

Because either a thicker layer of the same glaze (or a

different glaze) is used, it reacts differently to the

reduction process than the base coat glaze. You will

typically either get a base glaze with more copper than the

dripped glaze or the dripped glaze will have more copper

than the base glaze (as in this example).

This is a great area to explore, overlapping two or more

glazes on the same piece.

As always, test, record, and test some more.

 

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"Our class fired again last night, and the instructor

followed your tips and voila. Boy do we have copper. Its

great knowing we can do it, and I really appreciate your

help. Thanks again!"-Shannon P. http://www.rakusecrets.com

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Gary R. Ferguson - Raku Artist

(c) Copyright 2006, Gary R. Ferguson