Engineered for extreme melt-strength stability, high pigment loading, zero die build-up, and uniform color coverage across heavy-duty sheet extrusion applications.
Masterbatch integration in flat-die sheet extrusion requires meticulous matching of Melt Flow Index (MFI), particle dispersion kinetics, and thermal stabilization profiles.
Polyethylene sheet extrusion processes (covering HDPE, LLDPE, and LDPE resins) operate under distinct shear rates. Our masterbatch formulations utilize prime-grade carrier resins with calibrated Melt Flow Index values (typically 2.0 to 20.0 g/10min at 190°C/2.16kg) to eliminate melt fracture, parabolic flow marks, and interfacial instability during flat-slot T-die extrusion.
Agglomerates larger than 5 microns cause localized stress concentration points, pinholes, and reduced tensile strength in extruded sheets. Employing triple-screw compounding and specialized dispersion waxes, our masterbatch achieves ultra-fine pigment particle dispersion (< 2.0 µm median diameter), optimizing opacity, tinting strength, and mechanical integrity.
Extrusion barrel temperatures for heavy-gauge PE sheets often reach 240°C–280°C with residence times up to 10 minutes. Our additive packages incorporate primary hindered phenol antioxidants and secondary phosphite heat stabilizers, preventing color shift, polymer degradation, and die-lip build-up during long production runs.
In high-throughput sheet extrusion lines, screen pack clogging leads to frequent downtime and pressure fluctuations. We measure every production lot using European Standard EN 13900-5 (Filter Pressure Value test). Our PE sheet extrusion masterbatches consistently achieve an FPV of < 0.8 bar/g (using a 14-micron mesh screen), ensuring continuous, uninterrupted sheet production for over 72 hours per run without screen changes.
Leveraging Changzhou's world-class petrochemical cluster, state-of-the-art compounding infrastructure, and direct access to high-purity raw materials.
China's domestic production of virgin polyolefin resins (PE, LLDPE, HDPE) and high-purity inorganic pigments (Rutile Titanium Dioxide, Furnace Carbon Black) provides unparalleled cost efficiency. By procuring raw materials directly from tier-1 petrochemical refineries via bulk pipeline and rail transportation, our factory reduces raw material cost volatility, passing tangible 15–25% procurement savings directly to international buyers.
Our Changzhou manufacturing facility houses automated loss-in-weight gravimetric feeders and co-rotating twin-screw extruders featuring L/D ratios of 48:1. This advanced extrusion technology ensures homogeneous dispersion, zero lot-to-lot batch variance, and high throughput rates, supporting custom OEM/ODM masterbatch matching with a guaranteed lead time of 10 to 15 days for full container loads (FCL).
Comprehensive physical, chemical, and thermal properties comparison of our flagship PE sheet extrusion masterbatches.
| Masterbatch Grade | Pigment Content (%) | Carrier Resin Type | MFI (g/10min @ 190°C) | Heat Resistance (°C) | Primary Industrial Application |
|---|---|---|---|---|---|
| PE White MB 7080 | 70% Titanium Dioxide (Rutile) | Prime LLDPE / LDPE | 12.0 - 18.0 | 280°C | Food packaging thermoforming sheets, geomembranes |
| PE Black MB 5040 | 50% High-Surface Carbon Black | HDPE / LLDPE Blend | 5.0 - 10.0 | 300°C | Agricultural HDPE liner sheets, waterproofing membranes |
| PE Color MB (Blue/Red/Yellow) | 30% - 45% Organic Pigments | PE Carrier | 8.0 - 15.0 | 260°C | Industrial plastic plates, signage board extrusion |
| PE Additive Desiccant MB | 80% Active Calcium Oxide | PE Carrier | 2.0 - 6.0 | 240°C | Recycled PE sheet extrusion, moisture elimination |
| PE CaCO3 Filler MB | 80% Nano Calcium Carbonate | LLDPE Matrix | 3.0 - 8.0 | 260°C | Cost-reduction filler for thick sheet & corrugated board |
Our masterbatch products are customized to comply with regional processing parameters and end-use market requirements worldwide.
Thick HDPE/LLDPE geomembranes for civil engineering, landfills, and mining require long-term UV resistance and environmental stress-crack resistance (ESCR). Our black masterbatches utilize fine-particle Carbon Black (20 nm) with HALS UV stabilizers, extending sheet service life beyond 30 years in harsh outdoor climates.
In food tray thermoforming and blister packaging, high transparency or opaque white purity is critical. Our white and color masterbatches comply with strict food contact standards, providing uniform wall thickness retention, low odor, and minimal taste transfer during thermoforming heating cycles.
Extruded PP/PE hollow corrugated sheets demand precise color consistency across multi-cavity dies. Our color formulations eliminate streakiness and pigment migration, enabling excellent corona treatment retention for downstream high-resolution flexographic and digital printing.
Rigorous international certification ensures seamless compliance for exported plastic products into North American, European, and Asia-Pacific markets.
Formulated using food-grade raw materials certified under US FDA regulation 177.1520 for direct food contact applications.
Zero SVHC (Substances of Very High Concern) and heavy metal free (Lead, Cadmium, Hexavalent Chromium, Mercury, PBB/PBDE).
Computerized spectrophotometer color matching (Datacolor 800) with lot-to-lot archival samples retained for 24 months.
Degassed compounding process eliminates volatile organic compounds, meeting stringent automotive interior sheet specifications.
Pioneering sustainable masterbatch solutions to meet global circular economy directives and automated recycling protocols.
Traditional carbon black absorbs Near-Infrared (NIR) radiation, preventing automated optical sorting systems in recycling plants from identifying black PE sheets. Our advanced NIR-detectable black masterbatch utilizes specialized organic dyes, enabling automated sorting equipment to detect and recycle post-consumer PE sheets, aligning with European Circular Plastics Alliance goals.
To reduce carbon footprints, we offer custom masterbatches formulated with bio-based polyethylene (derived from sugarcane ethanol) or PCR (Post-Consumer Recycled) PE carriers. Coupled with AI-driven color matching, we achieve identical spectral color values while maximizing recycled resin content in final sheet products.
Expert answers regarding processing parameters, masterbatch dosage, custom color matching, and global logistics.
High-performance black, silver, metallic, and specialty color formulations available for immediate global export.
