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Posted by Sam Kelly on March 25, 2007, 9:59 pm
Please log in for more thread options Temp. range is cone9, which in my kiln(Gas) is around 1225DegC. I will be
firing in oxidation as reduction will effect the colour. A client want's
bathroom basins done in grey and I don't have a grey glaze or the time to
make and test one so I thought a grey glaze stain mixed into a base glaze
might be the easy way out.
I see that there are stains for glazes, clay bodies, underglazes etc and was
wondering what if any difference there is.
I have only ever used oxides and 99% of tha in reduction, no experience with
glaze stains at all.
Sam
> Your question is a little open ended. There are stains that will not
> retain the color they were meant to be if fired beyond the temperature
> range that they are made for. When you buy the stain it will tell you
> the color and the firing range.
>
> Different oxides (colorants) will do different things in different
> atmospheres (Reduction vs Oxidation) and in different chemical mixes.
>
> Copper Oxide will be green in an oxidation and if lucky, red in reduction.
> Chrome Oxide (bright green unfired) with Tin will create pink IF you use a
> very small amount. Too much and you get a barfy color. Colbalt
> (Carbonate is pink before being fired, Oxide is black) is almost always
> blue but can be violet.
>
> Can you clarify your question.
>
>> Can any colouring stain be used as a glaze stain or do you have to
>> specifically use a certain type.
>>
>> Sam
>>
>
>
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