How to do Keum Boo on Copper

Posted by Kazuhiko Ichikawa on November 17, 2019 | 4 Comments
 

Keum Boo on copper is a bit tricky because copper is easily oxidized when it's heated.

So you need to de-oxidize the surface using a torch.

Flame is an excellent reductant.

The preparation is exactly same as the usual Keum Boo but you don't need to do depletion gilding.

The point is brushy falme and de-oxidization by it.

I mean flame has 3 functions in this case.

1. Heating

2. Eliminating oxygen from the oxidized copper.

3. Protecting copper from oxidization.

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