InstaPurge^® Commodity-Grade Purging Compound from NOVACHEM is a mechanical purging agent that dislodges the residues of previous production colors and resins that remain on cylinder walls and screws after the barrel is run empty. It permits these residues to be quickly removed from the machine and is then readily purged from the barrel by the next production color or resin. The machine is back to producing good parts with minimum downtime.