How to Correctly Use Purging Compound for Injection Molding Machines
Injection molding is one of the most widely used methods for mass production in the plastic manufacturing industry. Yet, one crucial maintenance step often gets overlooked—purging. Using the right Purging Compound at the right time is essential for minimizing contamination, reducing downtime, and ensuring smooth transitions between materials and colors.
As India’s plastics industry continues to grow, understanding how to properly use Purging Compound for Injection Molding machines is more important than ever.
Why Purging Matters
Purging is the process of cleaning internal components such as the screw, barrel, and nozzle of an injection molding machine. This step is necessary when:
- Switching between resins or colors
- Preparing for shutdown
- Avoiding contamination from leftover material
Failure to purge properly can lead to defective products, machine wear, and unnecessary waste—all of which increase operational costs.
Choosing the Right Purging Compound
The Indian market offers various types of Purging Compounds—primarily mechanical, chemical, and hybrid:
- Mechanical Purging uses a high-viscosity resin to physically scrub the system
- Chemical Purging works by breaking down and removing deposits through a chemical reaction
- Hybrid Purging combines both methods for a more effective clean
Selecting the right compound depends on your machine, resin type, and the level of contamination. UNICLEANPLUS provides customized solutions and free sample options to help you choose the most suitable product for your operation.
Maintain Proper Temperature
Always perform purging at the same temperature as the production resin. Operating outside this range can decrease the cleaning efficiency of the purge. Follow both the resin manufacturer’s and the Purging Compound’s temperature guidelines for best results.
Step-by-Step Purging Process
To properly purge your injection molding machine:
- Stop feeding the current resin.
- Load UNICLEANPLUS Purging Material into the hopper.
- Run the machine in manual mode and produce short shots until only clean purge material comes out.
- Repeat until no traces of previous color or resin are visible.
- When switching resins, feed a small amount of the new resin to flush out any purge residue.
Standardize and Document the Procedure
Many Indian manufacturing units struggle with inconsistent purging practices, leading to inefficiencies. To address this:
- Implement a standard operating procedure (SOP)
- Train machine operators on correct purging methods
- Keep records of purging frequency, materials used, and results
This approach not only improves consistency but also helps identify recurring issues and performance bottlenecks.
Trust UNICLEANPLUS for Quality and Efficiency
Using UNICLEANPLUS Purging Material for Injection Molding is more than just a maintenance step—it’s a strategic move toward better efficiency, product quality, and equipment longevity. Whether you’re managing color changes, resin transitions, or regular machine maintenance, our purging solutions deliver reliable results every time.
Call +91 9021232809 today to place your order or request your free sample from UNICLEANPLUS—India’s trusted name in industrial Purging Compounds.