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Cobalt carbonate majolica technique troubleshooting


Hundy

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16 hours ago, Babs said:

If painting on glaze I wouldn't use clay  on its own incase it hinders the onglaze marrying into the glaze.  I just use cobalt and water, or for a softer blue a bit of iron. To make it painterly a tad of CMC ...

I make up my glaze from ingredients but the recipe is one of Janet de Boos's 

Google Gerry Wedd an Aussie potter, Brilliant on glaze blue decoration.

@Min can I post that here?

Some folk sinter their pieces first to harden glaze surface then decorate, some spray with starch I believe. I wpnder if spra ying  after initial paint at one strength, then paint again, spray again at a different dilution would affect anything

It’s fine to write out glaze or wash, slip, claybody etc recipes  @Babs

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