Purging: Cleaning between runs
Purging compounds play a key role in plastics processing. They are used by processors to remove excess polymer, color and other impurities from a machine and tools between runs.
On shop floors today, there are three primary types of purging compounds: abrasive, non-abrasive and chemical.
Purging is done in several plastic production processes, including blow molding, compounding, extrusion and injection molding. There may also be other instances where purging is necessary. Read More