Firing Media Coal Carbon - Rainbow Patina - 5lb Bulk
Coal-based activated carbon firing media. For use with bronze and brass clays. Not for copper clays. This carbon will produce a rainbow patina on fired BRONZclay. The patina is unpredictable, but fairly durable. If undesired, it can be burnished and polished to a high shine.
Click here to download a PDF version of our Gemstones in Metal Clay article for tips and hints for firing gemstones in carbon.