I regularly use onglaze colours fired to 760C on unglazed porcelain which has been fired to 1250C.
What I was wondering was if there is sufficient 'glaze base/cover' deposited by the colours to enable me to use lustres on top of them? Has anybody got any suggestions? Also, would it work if I use lustres on onglaze colours on top of a tin based glaze, also fired to 1250C? I'll have time to experiment in a few weeks, but at the moment I'm short for time.
Thanks
Susie Isle of Arran, Scotland