Fire Glazing Enameling or "Torch Enameling"
Yes--always heat your copper or 99% silver FROM UNDERNEATH! You'll
blow away your enamel and risk all kinds of bad results if you do it
from above! Use a wire-mesh on a trivet and heat your copper piece
with a #3 tip acetylene torch. Wonderful things can be accomplished
with torch enameling that are difficult to accomplish in a kiln,
i.e., scrolling, removing too much enamel, flattening lumps, etc.
There are often workshops that demonstrate this type of
enameling--go to one in your area. Our club has offered this class.
It's fun, and you can make beautiful things without a kiln.
from Vi Jones
rocks1x1vi.george -at- verizon.net