Purging material

Plastic injection purging material is used in the plastic injection molding process to clean the machine's internal parts between production runs. This cleaning is crucial when switching between different types of plastics or colors to prevent contamination and ensure product quality.

What is Purging Material?

Purging material is a specialized compound used to clean injection molding machines by flushing out leftover plastic, colorants, and degraded materials. It flows through critical areas like the barrel, screw, and nozzle to ensure a thorough clean and prevent contamination.

Types & Benefits

There are mechanical, chemical, and liquid purging compounds, each suited for different machines and resins. Proper use of purging materials reduces downtime, minimizes scrap, and improves product qualitymaking it vital for efficient and consistent production.

Material Compatibility

Ensure the compound matches the plastics you're using.

Processing Temperature

Must handle the temperature range of current and next materials.

Machine Type

Choose based on your equipment, e.g., hot runner, open system, or extruder.

Residue & Maintenance

Opt for compounds that leave minimal or no residue.

Safety & Environment

Prefer non-toxic, eco-friendly options.

Cost Efficiency

Higher-performance compounds can reduce scrap and save time long-term.

Purging Method

Mechanical
Scrubs residue physically

Chemical
Breaks down residue with additives

Liquid
Ideal for low-temp or sensitive systems

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