Comment

Comment by Kathy Ransom on July 9, 2013 at 6:34am

Can you share your recipe for ^6 copper Norm?

Comment by Jeff Poulter on July 7, 2013 at 10:03pm

I have never gotten the Sea Cucumber to work either.  That large jar was earthenware so it was ^04 bisque & ^05 glaze.  I will get some of Metallic Gold Mirror & see if it works.  I hope it isn't bothered by other glazes.  jhp

Comment by Norm Stuart on July 7, 2013 at 9:44pm

That's a lot of Aztec Gold glazing at $15.25 a pint! but it's reliable. Lead flux is still tough to replace in some glazes. Did you fire to ^6 before applying and firing the ^05 Aztec Gold?

Western Ceramic does have some interesting glazes. One of the few still selling leaded glazes. Sadly I've never been able to fire their ^05 Sea Cucumber into anything which resembles their test tile.

http://www.westernglaze.com/Western_Color_Chart.pdf

I wish I could find a reliable metallic silver glaze, either a recipe or commercial glaze. Amaco Palladium is not it. I have ^6 recipes for gold, copper, gunmetal, and pewter, but nothing for silver apart from raku, palladium gilding, or silver art clay.

Comment by Jeff Poulter on July 7, 2013 at 9:16pm

Hi Norm,

    I know what you mean by contamination.  I hate it when you can use another glaze with the metallic glaze.  I still have a bunch of the metallics that were made with lead.  I still use them as I don't make functional ware.  I had never heard of that trick of putting a low-fire metallic over a mid-fired clear.  That is pretty ingenious!  It would definitely give it a smoother surface which is one thing that the metallics need to be so shiny.  I will test as soon as I get some.  jhp

Comment by Jeff Poulter on July 7, 2013 at 9:11pm

Hi Norm,

    I am going to get some & try it.  Here is a sample of the the Aztec Gold

Comment by Norm Stuart on July 3, 2013 at 9:59am

They're nice when they work. Aztec Gold ^05 is reliable.

This is a Mickey Mouse my nephew made, fired to ^6 with a clear glaze to provide a glassy-smooth neutral surface, then re-glazed at  ^05 with three thick coats of Aztec Gold. The result is a glassy gold surface without variation or defect. I had nephew pre-heat the piece in the oven to 300F so the low-fire Aztec Gold would immediately dry on the glassy surface when he applied it.

This photo was taken with a cell phone, but it's not easy to photograph a shiny gold surface in the best of circumstances.

Comment by Kathy Ransom on July 3, 2013 at 5:49am

Wow, love these glazes!

Comment by Norm Stuart on July 2, 2013 at 11:23pm

Has anyone tried Spectrum 1116 Metallic Mirror glaze?  It looks very fluxed without appearing to run much.

http://www.tuckerspottery.com/tkps/index.php?page=shop.product_deta...

https://www.axner.com/spectrum1116metallicmirrorglaze1pint.aspx

They claim the glaze passes lead and cadmium leeching tests, which suggests it is a lead glaze, similar to Clay Planet Aztec Gold which is very robust and pure gold surface without the texture below if applied over a smooth layer of a previously fired neutral ^6 glaze, like a clear.

http://shop.clay-planet.com/pint-722-aztec-gold.aspx

It also looks similar to a gold-cast version of Amaco Palladium, which in my experience is a glaze that is easily "poisoned" by other glaze fumes or the wrong clay, turning a dull pewter, black, or shiny transparent bluish glass rather than bright palladium.

I'd love to duplicate these with bismuth as a flux rather than lead.

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