Generally used for large series of spin blown glass or cast glass. It is also very good for making samples or small production runs of centrifuged glass.

Graphite does not burn like wood - it is consistent and keeps its shape. Therefore, it is specifically good for distinctive designs with sharp curves or edges or for designs, where it is important that the measurements stay exactly the same throughout the whole production run, even if you make thousands of pieces in the same mold.

Graphite is a very resistant material with excellent durability, but it requires an initial coating of cork dust and varnish to the interior surface. Once this is done, you can blow as many as 500 to 700 pieces before you have to recoat the surface.

For this design, "Calebass", an asymmetrical graphite mold was developed from a two-dimensional drawing. The design called for an unusual solution, where the partition line was placed following the elevated pattern, which made the seam invisible on the finished glass piece.

Bowl made in a centrifugal graphite mold with a structured design engraved in the bottom of the mold.

Centrifugal mold made of graphite. The bowl itself was developed from a two-dimensional drawing, while the horse heads were laser scanned from a separate model and then added to the design in the computer.

The pyramidical paperweight was cast in a graphite mold. A smaller positive graphite pyramid mounted on a separate handle, was used to press the smaller pyramid inside the large one.
A structured, pressed pattern or design in the bottom of a spin blown piece can be achieved by making a separate spinning bottom.


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