In plastics processing, the toughest challenge often comes when cleaning machines after color or material changeovers, especially when hot runners, manifolds, or extrusion dies are involved. Normal purge compounds mostly work, but when residue clings in hard‑to‑reach zones or when changeovers must be fast, Purging Concentrates are a powerful alternative. Asaclean® Purging Concentrates let you “super‑charge” your own production resin to clean more effectively without extensive process change.
What Are Purging Concentrates
Purging Concentrates are masterbatches that work by blending into your existing resin. They match your resin’s melt flow rate, so you do not need to adjust processing temperatures. You load the production resin mixed with a Purge Concentrate for cleaner results. They are especially useful for hot runner color changes in high‑cavitation molds, manifolds, blow molding, and many extrusion operations.
PLUS Grade: The Concentrate That Performs
Asaclean® PLUS Grade is the single Purging Concentrate offered. It is recyclable, meaning you can recover material when you recycle your processing resins. It blends seamlessly with what you already use. Because it is formulated to match your resin’s performance, it clears residue faster and improves changeovers with less scrap. Because it displaces cleanly and needs no temperature change, operations regain production faster.
Real Gains: Efficiency and Savings
Processors using Purging Concentrates report high savings. On average, Asaclean® customers save about 74 percent using Purging Concentrates versus regrind, lesser quality purge compounds, or screw pushes. Contamination is reduced, color transitions improve, and changeover intervals shrink. You stay compliant with product quality more easily.
Also, because you are using less specialized cleaning product and more of your own resin, costs for shipping, storage, and inventory drop. The fewer changes you make to temperature or process settings, the lower the risk of error or variation. It is a leaner, cleaner system.
How To Use PLUS Grade Effectively
First, determine a loading ratio. Asaclean recommends approximately 20 percent of PLUS Grade mixed with your production resin. The loading can be adjusted upward or downward depending on how much residue or contamination is present.
Next, run the blended resin as you would your production resin. Because it matches melt flow, it should flow through your system without requiring temperature changes. Monitor the machine until the extrusion or molding output runs clean.
For stubborn residue or hard-to-reach parts of the machine, allow some soak time. Sometimes elevating the temperature slightly in suspect zones helps. Always check that the system is safe for higher heat.
After the cleaning is done, resume using production resin. You may optionally follow with a “clean chaser” purge compound or mechanical grade if you have very demanding clarity requirements.
Why Processors Choose Purging Concentrates
This method gives you a balance between performance and ease of use. You get strong cleaning power without having to overhaul your purge protocol or keep many purge product grades on hand. It preserves machine settings, significantly reduces downtime, and delivers cleaner starts. Plus, in high-volume or high-frequency changeover environments, every minute of saved time adds up. Because you do not have to change temperatures, operators find the process more reliable. Process quality is more consistent.
Final Thoughts
If your facility is struggling with long changeovers, persistent contamination, or space issues, Purging Concentrates like Asaclean® PLUS Grade may provide the solution you need. By enhancing your production resin with a cleaning masterbatch, you gain strong cleaning performance alongside operational stability. Request a free sample or consult with a Purging Expert to learn how PLUS Grade can make your process cleaner, faster, and more profitable.