1. Product Description
Virgin Resin – LLDPE 218WJ is a premium Linear Low-Density Polyethylene (LLDPE) manufactured by SABIC. It is a butene copolymer (C4) grade produced using advanced technology, ensuring a TNPP-free composition for enhanced safety in general-purpose packaging applications.
This grade is specifically engineered to provide an excellent balance of processability, mechanical strength, and optical properties. It comes pre-integrated with Slip and Antiblocking additives to optimize production efficiency and surface performance.
- Melt Flow Rate (MFR): ~2.0 g/10 min (190 °C/2.16 kg).
- Density: ~0.918 g/cm³ (ASTM D1505).
- Primary Processes: Blown film, lamination, and general extrusion.

2. Typical Technical Specifications
> Note: These are typical values and should not be construed as specifications. Users are encouraged to refer to the official Technical Data Sheet (TDS) for precise limits.
3. Advantages & Disadvantages
Advantages:
- 100% Virgin Quality: Ensures maximum purity, consistency, and stability compared to recycled or blended resins.
- Excellent Mechanical & Optical Balance: High toughness and elongation coupled with good clarity, ideal for thin-film applications.
- Integrated Additives: Pre-mixed with slip and antiblock agents to reduce coefficient of friction (COF), preventing film sticking and boosting production speed.
- Safety Standards: TNPP-free formulation, suitable for consumer-grade and food-contact packaging applications.
Disadvantages:
- Premium Pricing: Higher cost compared to recycled resins or off-grade blends.
- Storage Sensitivity: Requires strict storage conditions to prevent degradation from UV light, high temperatures, or humidity.
4. Main Applications
Virgin Resin – LLDPE 218WJ is highly versatile and widely used for:
- Blown Film: High-quality thin films, grocery bags, and T-shirt bags.
- Packaging: Food-grade liners, frozen food bags, and heavy-duty sacks.
- Lamination & Co-extrusion: Ideal as a sealing or core layer in multi-layer film structures.
- Consumer Goods: Garment bags, shopping bags, and general-purpose plastic liners requiring high elongation and tear resistance.
5. Guidelines for Usage & Selection
- Application Assessment: Evaluate end-product requirements for elongation, tensile strength, and optical haze. LLDPE 218WJ is ideal for films needing high stretchability.
- Processing Conditions: For optimal results, SABIC recommends a melt temperature of 185–205 °C and a Blow-Up Ratio (BUR) of 2.0–3.0.
- Machinery Calibration: Adjust line speeds and tension controls to accommodate the high elongation properties of the 218WJ grade to prevent gauge instability.
- Proper Storage: Keep in a dry, cool area (below 50 °C). Avoid direct sunlight and moisture to ensure the additives perform consistently and the resin does not degrade.










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