OWOSSO offers a full line of copper dies for foil stamping, embossing, letterpress printing plates, and intaglio printing. Copper dies can be produced on 16 gauge (.064") or ¼ inch (.250").
Copper dies are used for many of the same applications as magnesium dies, but copper is usually preferable for longer runs or when more durability is desired. Typically copper dies are also chosen over magnesium for printing on heavily textured or recycled papers.
Copper is an excellent heat conductor and retains heat longer than magnesium. This means that the heat expansion factor is less on copper dies than magnesium when the dies are heated on press.