Vacuum Degassing
Vacuum Degassing. A method of eliminating trapped or occluded gas (bubbles) from cast metal or plaster models by placing the cast object – mold and all – in a vacuum
container and pumping out the air.excerpted with permission from
An Encyclopedia of Coin and Medal Technology
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor