tgschs10 on sun 13 jun 99
I understand that Ilmenite is composed of a mixture of Titanium and Iron; is
there a mixture of these that I can substitute for Illeminite in a recipe?
Mike Bailey on mon 14 jun 99
In message , tgschs10 writes
>----------------------------Original message----------------------------
>I understand that Ilmenite is composed of a mixture of Titanium and Iron; is
>there a mixture of these that I can substitute for Illeminite in a recipe?
>
Hello,
The theoretical equivalent is a 50/50 mix of Titanium Dioxide and Black
Iron Oxide. The plus side of using these materials, at least in the U.K.
is that the quality of supply is more consistent. Ilmenite and it's
nearby cousin Rutile seems to be more variable - and variable enough to
make an annoying difference.
However, it's these small differences of additional trace amounts of the
colouring oxides, that can add subtle differences to the resulting
glaze's colour. One way round this is to buy a really large quantity of
Ilmenite and/or Rutile - enough to last many years! At least your supply
will be secure.
--
Mike Bailey
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