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porous mat white slip/glaze?


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I am working with Terracotta, making plant pots, and have a black iron oxide i've worked into a slip for creating black decoration on the unfired pots. i would like to do the same with white. My concern is that using a glaze essentially seals the clay, where what i'm hoping to do is color the clay without sealing it.

Does anyone know of techniques or products for this? What i found that i thought might work was a white mason stain mixed with a light body clay slip?

any advice is appreciated.

-isaac

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i'd say any white slip/engobe should work.

 

here's a versatile, basic white slip recipe:

 

25 Kaolin/EPK

25 Ball/OM4

25 Custer Feldspar

25 Flint

 

if you want it "whiter" you can sub for whiter clays, like grolleg; or even add an opacifier like zircopax or even tin.

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i'd say any white slip/engobe should work.

 

here's a versatile, basic white slip recipe:

 

25 Kaolin/EPK

25 Ball/OM4

25 Custer Feldspar

25 Flint

 

if you want it "whiter" you can sub for whiter clays, like grolleg; or even add an opacifier like zircopax or even tin.

 

 

I bought these things then realized I didn't ask, are they in ratio by weight or by volume?

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