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Matt white glaze adherence and dry hardness


Nadrali

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Hello, 

I would like to know what I can add to my glaze recipe to make it have better adherence and dry hardness. I am using  cobalt oxide mixed with cmc  and some other stains to paint over the surface of the glaze on bisqueware before firing. The glaze is dusty and seems to mix a bit and diluting the colour when I do stripes on a large surface.  

I remember reading once about some house hold products that can be added to any glaze and burn out during firing. But now I need it I can't find the info anywhere.

Grateful for any tips! 

 

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So you are applying oxides to unfired glaze surface which is mixing with your ixide and weakening the colour?

You have to lay the oxide on instead of painting. 

You need a brush which holds a lot of liquid. The CMC will make it painterly if cooked and mixture is the right thickness. Some folk spray starch onto glaze surface, some folk sinter the glaze before decorating. i.e. fire to temp which just hardens the glaze.

I think just practise applying no pressure with brush wIth a laden brush will help.

Practise on newspaper.

Read up on Majolica technique

And Linda Arbuckle.

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