Enamelling Basics:
Enamels work best on pure metals-
copper, silver (92.5% sterling, 99.9% fine), 18k-24k golds. You can enamel on
14k golds and sterling, but it is more time-consuming. Brass is an alloy of
copper and zinc, making it unsuitable for enamelling.
The layer of glass causes tension
on the surface of the metal, and will either cause the metal to bend, or the
enamel to crack if the tension is not similar on both sides.
The metal will bend towards the enamel. This can be fixed by
counter-enamelling your piece. Counter enamel refers to a coating of enamel
(usually a single color) on the back side of the piece that evens out the
tension.
Enamels don’t mix like paint- all
you will end up with is speckled colors.
You can place colors NEXT to each other in a flat layer. If
you want to layer colors on top of each other, you must fire the piece between
each layer of color.
Make sure to keep each jar and
container separate and don’t mix the powder between jars! Use extra caution
when dealing with the white and clear enamel powder as they look identical!
Always wash your transparents- even
for dry sifting. This gives them the clearest and truest color.
Label your test strips. If you want
to work in both silver and copper- make certain to test the opalescents and
transparents on silver also. They look very different! Also for copper, test
over the metal as well as over a coat of white. Also very different looking!
Preparing your metal
- Cut
your metal to desired shape.
- Clean
metal under running water with soap, comet, and scotchbrite to remove all
oils, dirt, and grease.
- The
water should sheet off the piece, not bead up. If it is beading, clean
more. A cheap toothbrush is great for getting into hard to reach places.
- Dry metal.
- Handle
metal in paper towel or by edges so you don’t get skin oils on the metal.
- Always
make sure that your work area and your tools are clean.
- Put on
face mask! (and gloves if needed)
No comments:
Post a Comment