Custom-Engineered Purge Compounds for Plastic Processing

Why Purge Compound Selection Is Critical in Plastic Manufacturing

Formulated by our experienced R&D team, AuroraClean™ compounds are designed to reduce purge cycles, lower material consumption, and get your production lines back to specification faster than conventional purging methods.

The wrong purge compound can cost manufacturers significantly in wasted material, extended downtime, equipment damage, and product defects. Selecting a purpose-engineered purge compound directly impacts production efficiency, part quality, and operational costs. Our rigid PVC-based purge compounds deliver superior thermal stability, excellent flow properties, and effective contamination removal without damaging screws, barrels, or die components.

Contamination & Residue Buildup: Residual colorants, degraded resins, and carbonized material cause black specks, streaking, and defects in finished parts when not properly removed during changeovers
Production Downtime: Frequent color and material changeovers require stopping production for cleaning, and inefficient purging extends downtime and delays production schedules
Material Waste & Cost: Inefficient purging wastes valuable raw materials and increases scrap rates, directly impacting profit margins in high-volume operations
Equipment Wear: Abrasive or chemically aggressive purge materials can damage screws, barrels, and die components, leading to costly repairs and premature equipment replacement

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AuroraClean™ Purge Compounds for Plastic Processing Applications

Purge Solutions for Extrusion Processes

Extrusion lines are particularly susceptible to carbonized buildup and color contamination in the barrel, die, and downstream tooling.

AuroraClean™ purge compounds are formulated with optimized melt flow characteristics that effectively scour residual material from the screw flights, barrel walls, and die channels without requiring full machine teardown.

Our rigid PVC-based purge compounds provide the thermal stability needed for extrusion temperature ranges while delivering sufficient cleaning action to remove degraded polymers, colorant residue, and carbonized deposits. The result is faster color transitions, reduced scrap during changeovers, and improved product consistency.

Purge Compounds for Injection Molding

Injection molding operations demand purge compounds that can effectively clean complex barrel and screw geometries while flowing through hot runner systems without clogging.

AuroraClean™ compounds are engineered for the high pressures and precise temperature control of injection molding processes, enabling clean resin-to-resin and color-to-color transitions that minimize reject parts.

Our formulations are designed to displace and carry away residual material efficiently, reducing the number of purge shots required and getting production back to specification quickly. Non-abrasive properties protect barrel and screw surfaces, extending the service life of your injection molding equipment.

Purge Compounds for Blow Molding Equipment

Blow molding machines present unique purging challenges due to their accumulator heads, parison tooling, and varying processing temperatures.

AuroraClean™ purge compounds deliver effective cleaning of blow molding systems, removing color contamination and degraded material from accumulator chambers and die heads.

Our compounds maintain consistent viscosity across blow molding temperature ranges, ensuring thorough contact with all internal surfaces during the purge cycle. This translates to cleaner transitions, fewer rejected parts during startup, and reduced material waste.

Purge Solutions for High-Temperature Resin Processing

High-temperature engineering resins such as PEI, PBT, and glass-filled compounds present some of the most difficult purging challenges in plastic processing.

Residues from these materials can carbonize and adhere stubbornly to barrel and screw surfaces, degrading part quality and requiring extended downtime for manual cleaning.

AuroraClean™ offers purge formulations with the thermal stability to operate at elevated processing temperatures, providing effective displacement and removal of high-temperature resin residues. Our R&D team can develop custom purge formulations targeted at your specific resin types and processing temperature windows.

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Key Benefits of AuroraClean™ Purge Compounds

Our extensive offering gives you the foundation for an engineered thermoplastic compound or polymer designed to meet your product needs:

Minimized Downtime & Faster Changeovers

Reduces cleaning time and speeds up transitions between color and material changeovers
Fewer purge cycles required compared to conventional purging with production resin
Gets production lines back to specification faster, maximizing uptime in high-volume operations

Reduced Material Waste & Lower Production Costs

Significantly reduces the volume of purge material consumed per changeover cycle
Lowers scrap rates by achieving clean transitions with fewer reject parts
Reduces overall purging costs compared to purging with production resin or general-purpose compounds

Non-Abrasive Equipment Protection

Non-abrasive formulation protects screws, barrels, and die components from wear and damage
Reduces maintenance costs and extends equipment service life
Safe for use with a wide range of processing equipment and machine configurations

Versatile Performance Across Equipment Types

Effective across injection molding, extrusion, and blow molding equipment
Delivers consistent cleaning results across different machine sizes and configurations
Suitable for color changes, resin transitions, and contamination removal applications

Regulatory Compliance & Environmental Responsibility

Formulated to comply with REACH, OSHA, and ISO industry standards
Low-VOC and phthalate-free options available for environmentally responsible operations
Waste-reducing formulations support corporate sustainability goals and environmental compliance

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Helpful Resources About Purge Compounds

FAQs

What are purge compounds used for in plastic processing?

Purge compounds are specialty materials used to clean plastic processing equipment during color changes, resin transitions, and routine maintenance. They displace residual colorants, degraded polymers, and carbonized deposits from screws, barrels, and die channels, reducing the time and material needed to achieve clean transitions. AuroraClean™ purge compounds are designed to clean extrusion lines, injection molding machines, blow molding equipment, and extruders efficiently and effectively.

How do custom PVC compounds improve purge efficiency?

Custom PVC-based purge compounds are engineered with specific melt flow characteristics, thermal stability, and cleaning properties optimized for your equipment and processing conditions. Unlike purging with production resin, which simply pushes material through, AuroraClean™ compounds are formulated to actively scour and displace residual material from barrel walls, screw flights, and dead spots. This targeted approach reduces purge cycles, minimizes material consumption, and achieves cleaner transitions faster.

Are Aurora’s purge compounds safe for my processing equipment?

Yes, AuroraClean™ purge compounds are formulated to be non-abrasive, protecting screws, barrels, and die components from wear and damage during the purging process. Unlike some aggressive purge materials that can score barrel surfaces or degrade seals, our compounds provide effective cleaning while preserving equipment integrity. This non-abrasive approach reduces maintenance costs and extends the service life of your processing machinery.

What types of processing equipment can AuroraClean™ purge compounds clean?

AuroraClean™ purge compounds are designed to clean all major types of plastic processing equipment, including single-screw and twin-screw extruders, injection molding machines, blow molding equipment, and profile extrusion lines. Our formulations can be customized for specific machine configurations, barrel sizes, and screw geometries to ensure optimal cleaning performance across your production floor.

How often should I purge my plastic processing equipment?

Purging frequency depends on your specific production schedule and requirements. Purging is recommended during every color change, resin transition, and at the end of production runs to prevent carbonization during idle periods. Regular preventive purging between production cycles can also reduce contamination buildup and maintain consistent part quality. Our technical team can help you develop an optimal purging protocol for your specific operation.

Call: (330) 422-0700

Custom-Engineered Purge Compounds for Plastic Processing | Thermally Stable and Waste-Reducing

AuroraClean™ Purge Compounds for Extrusion, Injection Molding & Blow Molding Equipment Cleaning

Why Purge Compound Selection Is Critical in Plastic Manufacturing

Formulated by our experienced R&D team, AuroraClean™ compounds are designed to reduce purge cycles, lower material consumption, and get your production lines back to specification faster than conventional purging methods.

Contact Us About Your Specific Purge Application!

AuroraClean™ Purge Compounds for Plastic Processing Applications

Purge Solutions for Extrusion Processes

Extrusion lines are particularly susceptible to carbonized buildup and color contamination in the barrel, die, and downstream tooling.

Purge Compounds for Injection Molding

Injection molding operations demand purge compounds that can effectively clean complex barrel and screw geometries while flowing through hot runner systems without clogging.

Purge Compounds for Blow Molding Equipment

Blow molding machines present unique purging challenges due to their accumulator heads, parison tooling, and varying processing temperatures.

Purge Solutions for High-Temperature Resin Processing

High-temperature engineering resins such as PEI, PBT, and glass-filled compounds present some of the most difficult purging challenges in plastic processing.

Enter your information below to learn more about our wide range of engineered thermoplastic compounds.

Key Benefits of AuroraClean™ Purge Compounds

Our extensive offering gives you the foundation for an engineered thermoplastic compound or polymer designed to meet your product needs:

Minimized Downtime & Faster Changeovers

Reduced Material Waste & Lower Production Costs

Non-Abrasive Equipment Protection

Versatile Performance Across Equipment Types

Regulatory Compliance & Environmental Responsibility

Helpful Resources About Purge Compounds

FAQs

Brands & Materials

Aurora Material Solutions Purge Brands

Aurora Material Solutions Purge Materials

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