TL;DR: Knowing how to purge hot runner systems is essential for fast and thorough color and material changes in injection molding operations. Because hot runner systems keep plastic molten, contamination can linger longer than in cold runner setups, making the right purging approach critical for quality and efficiency. When done correctly, purging hot runner systems […]

TL;DR: Learn why screw extrusion maintenance is essential for improving product quality, reducing downtime, and extending equipment life. This blog explains how purging compounds simplify cleaning for both single-screw and twin-screw extrusion systems, helping manufacturers maintain efficient operations without frequent machine disassembly. In any extrusion operation, productivity depends on consistent output, clean equipment, and minimal […]

TL;DR: Defects in plastic molding can originate from contamination inside processing equipment as well as problems with the mold itself. This blog explains how purging compounds help eliminate carbon buildup, residual materials, and degraded resin to improve part quality, reduce scrap, and keep production running efficiently. Manufacturers invest significant time and resources into optimizing cycle […]

TL;DR: The blown extrusion film process demands clean equipment, stable processing conditions, and strong quality control to prevent gels, contamination, and costly production defects. This blog explains the most common causes of contamination and the maintenance practices that help manufacturers improve film quality, reduce waste, and maintain efficient production. The success of any blown film […]

TL;DR: Sheet extrusion operations depend on efficient cleaning and fast changeovers to maintain productivity, reduce scrap, and improve product consistency. This blog explores best practices for cleaning sheet extrusion lines, minimizing contamination, and improving operational efficiency across plastic extrusion applications. Downtime during sheet extrusion changeovers can quickly impact productivity, material costs, and overall manufacturing efficiency. […]

TL;DR: This article explains how the melt flow index (MFI) directly impacts purging compound performance, machine cleanliness, and production efficiency. Readers will learn how understanding polymer flow behavior can help reduce contamination, minimize scrap, and improve changeovers across injection molding, extrusion, and blow molding operations. Ask any process engineer what separates a smooth changeover from […]

TL;DR: Color contamination is one of the most common and costly issues in plastics processing, especially during color changeover or when switching from dark to light colors. This blog explains why contamination happens, how black specks form, and the most effective purging solutions to keep production lines running clean and efficient. Readers will learn: Color […]

TL;DR: The purging compound extrusion blow molding process is key to keeping your blow molding machines clean, efficient, and consistent. This blog explains how purging compounds help blow molders reduce downtime, eliminate defects, and improve product quality. In the fast-paced world of plastic extrusion blow molding, every minute counts. Unplanned downtime, color streaks, or contamination […]

TLDR When it comes to plastics manufacturing, downtime, contamination, and wasted resin can cost thousands. That’s why many processors turn to purging compounds. But what exactly should you know before using them? Here are six common purging compound questions—and the answers every manufacturer needs. 1. What is a purging compound, and why is it important? […]

On October 7th 2025, 18 new members will be inducted into the Plastics Hall of Fame (“PHoF”) at a black tie gala event the evening before the commencement of the 2025 K Show in Dusseldorf, Germany. The 15 living and posthumous inductees joining the PHoF via the standard nominating process include: Dr. Erwin Bürkle of […]