Mechanical Purging Compounds are compounded specifically to match your processing temperatures, your resins, your MFR, and your processing needs. Mechanical Purging Compounds depend on your machine’s power to do the work. They perform best in injection molding and other high-pressure applications. This is because they rely on pressure and agitation to clean out the previous resin or any contamination within your machine.
Unlike regrind or virgin resins, Mechanical Purging Compounds are designed to clean. They have strong detergency and have no affinity to metal. This guarantees your machine will be running clean in no time.
Chemical Purging Compounds are blended products that also match your processing temperatures, your resins, your MFRs, and your processing needs. But unlike Mechanical Purging Compounds, Chemical Purging Compounds clean using a heat-activated chemical additive that performs best in low-flow and low-pressure environments. Chemical Grades are usually recommended for extrusion or blow molding because they expand to effectively clean large dies or other low flow areas where contamination can be difficult to remove. Chemical Purging Compounds are strong cleaners that clean hard-to-reach areas within your machine. They do require a short soak time, but a Chemical Purge will cut your changeover time in half thus making a short soak time more than worth it.
Purging Concentrates are cleaning masterbatches that super-charge your processing resins for superior cleaning. Purging Concentrates perform best in some of the trickiest applications. We recommend Purging Concentrates for hot runner color changes (including high-cavitation molds and manifolds), blow molding, and most extrusion applications.
Purging concentrates are incredibly easy-to-use.
They are easily displaced because they match your production resins’ MFR and their loading ratios can be adjusted to optimize your cleaning power.