Purgex™ 456 Plus

Polyethylene Purging Compounds

Purgex™ 456 Plus commercial purging compound is a ready-to-use blend consisting of active ingredients with a polyethylene carrier. Purgex polyethylene purging compounds have mechanical activity for efficient cleaning, foaming action for enhanced mixing, and a lubricant for easy removal. In addition, purging compounds for color changes ensures your colors don’t mix. If you are new to Purgex and want to understand how purging compounds work, please visit our what is a purging compound page.

Polyethylene Purging Compound Description

• Blend & polyethylene and an active component
• Non-toxic, non-abrasive, and safe
• Ready to use and easy to remove

 

Purging Compounds Color Changes

Purgex™ 456 Plus was created with efficient and effective color changes in mind. Our product offers a variety of features and benefits for cleaning your systems. View all features and benefits below:

• Designed for color and/or material changes on many different resins plus efficient cleaning of hot runner systems, Purgex 456 Plus has proven versatility on a wide range of resins such as HDPE, LDPE, and PP-Copolymer.
• Engineered for rapid turnaround on material and color changes. Efficiently removes residual contamination.
• Effectively cleans the barrel, screw, check ring, as well as hot runner systems and is safely processed through hot runner gates as small as .030-inch (.75mm).
• Thorough cleaning of melt pumps and is safely processed through dies as small as .030-inch (.75mm).

 

Contact Purgex

We can provide the best purging compound for your specific cleaning process by offering different types of purging compounds that effectively and efficiently clean your system. Contact us today to speak to a team member and find the best purging compound for your application.

Resin Compatibility and Operating Temperature

PE, PP-Copolymer, Flexible PVC (over 370°F and within the grade operating range), TPEs, TPOs, HDPE, LDPE, PMMA, POM, PP-Homopolymer, PVC-Rigid, SAN, PS, LLDPE.

Operating range: 380–550°F (193–288°C). Select a processing temperature within the grade range and follow the applicable purging procedure.

Processes and Equipment

Listed processes: Injection molding, Injection blow molding, Extrusion blow molding, Profile extrusion, Sheet extrusion, Extrusion compounding.

Equipment cleaned: Cold runners, hot runners, check valves, mixing nozzles, accumulators, melt pumps, extrusion dies. Equipment listings do not expand the listed process applications.

Coverage follows the Product Selection Guide Matrix, Revision H (updated version supplied November 11, 2026). Contact our technical team for applications not listed. Use the product selector or compare Purgex grades.