Details

Parent Category: Projects from Journal Back Copies

Category: Projects 1998

Joan Bolton King

Working the MetalThe copper shim for repoussé work must be as pliable as possible. Unless specifically soft tempered the metal sheet should first be annealed - heat to at least 500°C (almost red hot) then plunge it into cold water to remove as much fire scale as possible - later the remaining copper oxide can be pickled off with acid (or salt and vinegar). Always prepare enough shim to allow a margin of at least ⅛" round each proposed cut-out.

Shim can be re-annealed if working stiffens it, or even hardened by rubbing with the back of a big spoon.

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