John Sankey on sun 9 dec 07
I'm looking for small (a lb) quantities of frits that would
separate the effects of calcia, magnesia and phosphorus on iron
glazes, and am having problems finding sources.
First, I need a frit free of all of these that will allow a clean
silica+alumina+iron oxide mix to fully melt at cone 6. Fusion
makes several that look as though they should work: F-15, 74, 367
and 492.
Then, I need an insoluble source of calcia+phosphorus-free Mg
such as Fusion F-69.
Finally, I need an insoluble Ca+Mg-free source of P2O5, and
haven't located anything.
Emails to Fusion, Ferro and Pemco have gone unanswered. Does
anyone know of a possible source of any such frits?
--
Include 'Byrd' in the subject line of your reply
to get through my spam filter.
| |
|
