Purgex™ 458 Plus

Purging Compound for High Pigment and Additive Loading

Purgex™ 458 Plus is a ready-to-use commercial purging compound with active ingredients and a polyethylene carrier. Mechanical cleaning, foaming action for enhanced mixing, and a lubricant support cleaning and removal.

Features and Benefits

• Designed for tough applications, including resins with high pigment loading or high additive content.
• Supports color and material changes and removal of residual contamination.
• Cleans the barrel, screw, check ring, and hot runner systems. The product data sheet specifies hot runner gates as small as 0.030 inch (0.75 mm).
• Cleans melt pumps and can be processed through dies as small as 0.030 inch (0.75 mm).

Resin Compatibility

ABS, PA (nylon), PC/ABS, PP copolymer, flexible PVC over 370°F, TPEs, TPOs, PBT, PMMA, POM, and SAN.

Processes and Operating Temperature

Injection molding; extrusion compounding, blow molding, profile, and sheet. Operating range: 380–550°F (193–288°C). Flexible PVC use must remain within this range.

Coverage follows the Product Selection Guide Matrix, Revision H, November 10, 2026. Follow the applicable purging procedure and confirm application requirements with our technical team.

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