I’ve been using 9K wire for cloisonne work and it keeps leaping off,
even when apparently well-secured in fired enamel. Does anyone know
of any other disadvantages to using 9K wire that havent yet
manifested themselves in my experiments. Real gold is so expensive
I’d like to persevere with 9K unless there are other hidden
problems, I find enamelling tricky enough without additional
dificulties.
most 9 carat gold contains a proportion of zinc (I was told up to 9%)
which apparently vapourises in the kiln, thereby pinging off the
enamel or at least causing pits in the surface which trap air and
ping off. This would make the fine wires jump out. Use as high carat
gold cloisonne wire as you can get hold of (23 /24) or use fine
silver.
18 carat though has worked for me as castings (Niagara Falls
Castings UK are FABULOUS - no connection, just very satisfied
customer) as long as the castings are under inert gas which avoids
porosity. Sand castings and those done in air don’t take enamel well
as tiny air bubbles occur.
In the UK the Guild of Enamellers is a very friendly organisation
for enamellers of all levels, and is only 20 a year membership.