Thunderwomanartglass wrote:Bert, I have fused Bullseye glass to textured copper with varying results and I suspect the texture of the copper has as much to do with the result as anything. In one example, the glass and copper were fully fused. In another, I was able to pull the copper away from the glass without breaking. There was fire scale remaining on the glass and I fused it into another piece and received an awesome color change with the copper scale. The combination glass and copper piece that stayed together remains together after several months. These two pieces of copper had two different textures. That is the extent of my experience.
One strategy of metal enameling is to put equal coatings of glass on both sides of the metal. This should equalize the pushing and pulling.