LLDPE Resin is mainly selected for applications where film strength, puncture resistance, flexibility, and stable extrusion performance need to be balanced. Different grades are developed for blown film, cast film, stretch film, agricultural film, heavy-duty bags, liners, and other polyethylene products. MFR, density, tensile strength, impact resistance, and optical properties are commonly used when comparing grades.
For most purchasing projects, the finished product and production process provide the starting point for grade selection. Film applications normally require attention to MFR, density, tensile strength, elongation, impact resistance, and optical properties.
| Parameter | Why It Matters |
| MFR | Indicates melt flow and helps match the resin with extrusion conditions |
| Density | Influences stiffness, toughness, and film characteristics |
| Tensile Strength | Important for film strength and durability |
| Elongation | Indicates how far the material can stretch before breaking |
| Dart Impact | Helps assess resistance to sudden impact |
| Haze | Relevant when film clarity is an important requirement |
| Puncture Resistance | Important for heavy-duty and demanding packaging applications |
Actual values vary by grade and manufacturer. The current manufacturer TDS should be used for technical confirmation.
LLDPE is widely used in flexible film production because it provides a useful combination of toughness, tensile performance, and elongation. Its grade characteristics can be adjusted to different film structures and processing conditions.
Common applications include:
For film production, the suitable grade depends on film thickness, extrusion equipment, production speed, required strength, clarity, sealing behavior, and other finished-film specifications.
| Resin | Main Characteristics | Typical Applications |
| LLDPE | Good strength, flexibility, toughness, and puncture resistance | Flexible film and packaging |
| LDPE | Good flexibility, clarity, and processing characteristics | General film and bags |
| HDPE | Higher density, stiffness, and rigidity | Containers, pipes, rigid products, and selected films |
These are general material differences. Specific grades should be compared using their actual technical data rather than resin type alone.
LLDPE grades are available for different processing methods, with film extrusion being one of the major applications.
| Processing Method | Selection Focus |
| Blown Film | MFR, density, melt strength, and dart impact |
| Cast Film | MFR, clarity, tensile properties, and processing stability |
| Stretch Film | Elongation, puncture resistance, and toughness |
| Injection Molding | MFR, stiffness, and impact performance |
| Rotational Molding | Powder characteristics, impact strength, and processing behavior |
Processing temperatures, screw configuration, cooling conditions, and other machine settings should follow the selected manufacturer's technical recommendations.
Nianjing can source LLDPE according to the required manufacturer, grade, application, and quantity.
Representative manufacturers may include:
| Manufacturer | Grade | Processing / Application |
| Sinopec | Available LLDPE grades | Film and polyethylene applications |
| CNPC | Available LLDPE grades | Film and general processing |
| Formosa Plastics | Available LLDPE grades | Film applications |
| ExxonMobil | Available LLDPE grades | Film and specialty applications |
| Dow | Available polyethylene grades | Flexible packaging and film |
Grade availability changes according to supplier stock and market conditions. Specific grade names, technical values, and current availability should be confirmed before quotation.
When a specific grade is required, Nianjing can check that grade directly instead of recommending another material without technical comparison.
LLDPE resin is normally delivered in sealed manufacturer-standard bags. Packaging weight and pallet configuration depend on the selected supplier and order requirements.
Actual packaging information should be shown using Nianjing's shipment photographs:
Manufacturer Bag → Grade Marking → Bag Weight → Pallet / Stacking → Goods Ready for Loading
For export orders, the goods are prepared and loaded according to the confirmed quantity, packaging condition, container type, and destination.
Actual loading records may show:
The final loading quantity depends on the product packaging, container specification, and confirmed shipment weight.
For export orders, LLDPE resin is normally packed in sealed bags suitable for handling and container transportation. The goods should remain protected from moisture, contamination, direct sunlight, and excessive heat during storage and transit.
Nianjing can coordinate:
FCL Sea Freight | LCL Sea Freight | Other Applicable Export Arrangements
The packaging format, loading quantity, shipping method, and destination should be confirmed before dispatch.
Before confirming an LLDPE purchase, it is useful to verify:
| Check Point | What to Confirm |
| Grade | Exact manufacturer and grade number |
| Application | Film, packaging, agricultural, or other use |
| MFR | Compatibility with the production process |
| Density | Required material and finished-product performance |
| TDS | Current manufacturer technical data |
| COA | Batch information when available |
| Packaging | Bag weight and packing condition |
| Quantity | Required shipment quantity |
| Destination | Delivery market and logistics requirements |
This information reduces the risk of comparing materials only by their generic resin name.
A: Start with the film process and required performance. MFR and density are basic selection parameters, followed by tensile strength, elongation, dart impact, puncture resistance, clarity, and other film-specific requirements.
A: Not necessarily. A higher MFR generally means easier melt flow, but the suitable range depends on the extrusion process, equipment, film thickness, production speed, and required mechanical properties.
A: LLDPE generally provides higher tensile and puncture performance, while LDPE is valued for flexibility, clarity, and easy processing. The appropriate choice depends on the finished product and production conditions.
A: Yes. Provide the manufacturer, grade, quantity, and destination, and Nianjing can check the current sourcing conditions for that specific material.
A: The manufacturer's applicable TDS and SDS can be requested for the selected grade. A COA can be provided where the supplier issues batch-specific documentation for the shipment.
A: LLDPE is generally supplied in sealed manufacturer-standard bags. The actual bag weight, pallet configuration, loading quantity, and container arrangement depend on the supplier and confirmed order.
A: LCL may be arranged for suitable quantities and destinations. FCL sea freight is commonly used for larger shipments, with the final method determined by order volume and logistics conditions.
For a specific requirement, send the manufacturer, grade, quantity, application, and destination.
If the grade is not yet confirmed, provide the processing method and required product properties. Nianjing can check available sourcing options and the relevant technical documentation.
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Please include the material name, manufacturer or brand, grade, quantity, application and delivery requirements when available. If you are unsure about the grade, simply describe your application and requirements.
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