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Chemical and mechanical purging compounds may address similar production problems, but they clean in fundamentally different ways. Learn how chemical purging compares with Pekutherm’s thermoelastic mechanical soft-scrubbing action.

Fresh-resin flushing is one of the most common changeover methods in plastics processing. Learn how it works, its advantages, its limitations, and how it compares with thermoelastic mechanical soft-scrub purging.

Carrier-resin purges are one of the five primary categories of purging compounds used in plastics processing. Learn how they work, why manufacturers use them, and how their cleaning mechanism differs from Pekutherm® mechanical soft-scrub technology.

Not all purging compounds are designed to accomplish the same objective. Discover how lubricating purges differ from thermoelastic mechanical soft-scrub purging and why understanding the mechanism can improve changeovers, maintenance and part quality.

Learn how to purge silicone and flexible materials without thermal degradation using low-temperature mechanical purging methods for cleaner, faster changeovers.

Polycarbonate processing temperatures increase contamination risk during resin transitions. Learn how mechanical purging compounds help prevent black specks and stabilize production quality.

In modern plastics processing, downtime is expensive, contamination is unacceptable, and equipment longevity matters more than ever. As extrusion lines become faster, hotter, and more specialized, processors are re-evaluating one critical but often overlooked step: purging.

Learn how mechanical purging compounds reduce downtime in injection molding and extrusion through thermoelastic cleaning without carrier resin contamination.

Plastic injection molding operations frequently encounter one persistent challenge: cleaning machines effectively at lower processing temperatures without increasing downtime or risking contamination. Many purging compounds perform well at standard or high temperatures but struggle when processors run low-temperature materials such as PVC, EVA, silicone, or specialty elastomers. At these temperatures, degraded polymers and color contamination can accumulate inside the scre

Gain essential insights into purging compounds for processors. This guide covers types, advantages, and optimal usage, enhancing efficiency in operations.

Extrusion Purging Compounds: The Complete Engineering Guide for Cleaning Plastic Extruders (2026)

Mechanical vs Chemical Purging Compounds: Mechanical purging compounds clean processing equipment through physical scrubbing action, while chemical purges rely on reactive additives that generate gas expansion.

Learn how preventative mechanical purging helps reduce screw pulls, contamination buildup, downtime, and maintenance disruption in injection molding and extrusion operations.

Black specks are one of the most common contamination issues in plastic processing. In injection molding and extrusion environments, degraded polymer, carbon buildup, trapped material, and improper changeover procedures can create recurring defects that increase scrap, downtime, and maintenance costs. This guide explains the root causes of black specks, how preventative purging reduces contamination risk, and why mechanical purging compounds are increasingly used to improve p

Carbon buildup inside plastic extruders can lead to black specks, contamination, downtime, and expensive screw pulls. Learn how preventative mechanical purging helps support cleaner extrusion operations and reduce buildup before it becomes a major production problem.

PEKUTHERM® ULT helps injection molders and extrusion processors reduce downtime, improve changeovers, and support low-temperature processing applications including silicone rubber and EPDM.

UniTemp’s Pekutherm ULT was recently featured in PlasticsToday for its ultra-low temperature purging capabilities. The coverage highlights how Pekutherm ULT supports processors working with silicone, EPDM, and other low-temperature materials across injection molding and extrusion environments.

Engineering resins such as Nylon, PET, and Polycarbonate create unique purging challenges. Learn how processors reduce contamination, downtime, and startup scrap.

Not every purging method performs the same job. Learn how five common approaches use different mechanisms to address resin, color, carbon buildup and degraded polymer in plastic processing equipment.

Carbon buildup in plastic extruders can cause contamination and downtime. Learn what causes carbon deposits and how processors remove them from extrusion equipment.