The spag-less system represents an innovative approach to drying plaster molds in ceramic production, focusing on the removal of absorbed water. This technique eschews traditional heating methods, opting instead for the use of compressed air that is fed through a network of channels within the mold.
To create these channels, a lattice of pipes made from permeable materials is embedded within the mold prior to the plaster casting. These pipes are interconnected, leading to one or more collectors, which are then connected to the compressed air source.
Regardless of the specific method employed to establish this network within the plaster mold, the introduction of compressed air plays a pivotal role. It enables rapid expulsion of the water that the plaster absorbs during the casting process. Additionally, this method reduces the duration of water retention in the mold, which contributes to extending the mold's lifespan.