| HS Code | 870860 |
| Density | 0.918 g/cm³ |
| Melt Flow Rate | 20 g/10 min (190°C/2.16 kg) |
| Melting Point | 122 °C |
| Vicat Softening Point | 84 °C |
| Tensile Strength At Yield | 10 MPa |
| Elongation At Yield | 20 % |
| Flexural Modulus | 230 MPa |
| Shore D Hardness | 48 |
| Brittleness Temperature | -70 °C |
| Izod Impact Strength Notched 23 C | No break |
As an accredited SABIC LLDPE 219ZJ factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | SABIC LLDPE 219ZJ is available in 25 kg sealed polyethylene-lined paper bags, palletized and wrapped to protect against moisture and damage. |
| Container Loading (20′ FCL) | SABIC LLDPE 219ZJ is loaded into a 20ft FCL, palletized in sealed bags, secured inside a clean, dry container to prevent moisture and contamination. |
| Shipping | SABIC LLDPE 219ZJ is shipped as virgin pellets in moisture-protective woven bags, bulk bags, or silo trucks. It requires dry, ventilated storage away from heat, ignition sources, and direct sunlight. Not classified as dangerous under standard shipping regulations, but avoid dust accumulation and use proper handling equipment. |
| Storage | Store SABIC LLDPE 219ZJ in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and open flames. Keep bags sealed and undamaged, preferably on pallets, to prevent moisture contamination and physical damage. Avoid generating dust and static electricity. No special hazardous storage requirements apply under normal conditions. |
| Shelf Life | SABIC LLDPE 219ZJ has an indefinite shelf life when stored in dry, shaded conditions away from heat, moisture, and UV light. |
For cast-film stretch-wrap conversion, SABIC LLDPE 219ZJ is specified around a butene-based backbone with density 0.919 g/cm³ under ISO 1183-1 and melt mass-flow rate 2.0 g/10 min at 190°C/2.16 kg under ISO 1133-1. The resin is dry-blended with 5-15 wt% high-pressure LDPE or a metallocene ethylene-octene grade to increase specific output and reduce neck-in at the slot die. The cast line runs a coat-hanger die with lip gap 0.45-0.80 mm, melt temperature 238-252°C, air gap 40-80 mm, and polished chill-roll temperature 18-24°C. Film gauge is targeted at 12-25 µm, with pre-stretch ratios between 200% and 300% on powered rollers. Because the neat grade is not formulated with cling or slip additives, tackifier addition is required for pallet wrap; polyisobutylene or sorbitan-ester masterbatch is metered at 0.5-2.0 wt% into the extruder throat. Cling force and retained stretch are measured under ASTM D5458 and ASTM D5459, while tensile properties are recorded under ASTM D882. Finished articles include hand stretch film, pre-stretched machine film, and pallet-wrapping film used in distribution centers. Food-contact status is supported by the polyolefin provisions of 21 CFR 177.1520 and the overall migration limit of 10 mg/dm² under EU Regulation 10/2011 for the final packaging structure.
Blown-film production of 219ZJ at 15-50 µm requires a wider die gap than LDPE-only extrusion to control melt fracture and bubble stability. A common starting condition is a spiral mandrel die with gap 2.0-2.5 mm, blow-up ratio 2.2-3.0, and frost line height 4-8 die diameters. Melt temperature at the die lip is held at 205-215°C, with barrel zones stepped from 170°C to 205°C. Because butene-based LLDPE has lower elongational melt strength than high-pressure LDPE, converters dry-blend 70-80 wt% 219ZJ with 20-30 wt% LDPE or add a heavy-metal-free processing aid to raise bubble stability and reduce die-lip deposit. Film properties are direction-dependent; increasing BUR above 3.0 raises transverse tensile strength but can induce bubble flutter unless cooling air is adjusted through dual-lip rings. The product range covers refuse sacks, drawstring bags, industrial liners, and frozen-food overwrap. Mechanical acceptance is typically set by dart impact ASTM D1709, Elmendorf tear ISO 6383-2, and tensile strength/elongation ISO 527-3.
Across silage-wrapping and greenhouse-cover lines, 219ZJ is selected for low-temperature impact measured by ASTM D1709 at -20°C to -30°C rather than UV resistance; the neat resin requires stabilizer addition before outdoor exposure. A three-layer blown film structure places a UV masterbatch containing HALS and carbon black in the outer skin at 2-6 wt% let-down, while the core may contain trim scrap or post-industrial recyclate. Total thickness ranges from 40 µm for silage wrap to 100-150 µm for greenhouse covers. Die gap is maintained at 2.3-2.5 mm, blow-up ratio at 2.5-2.8, and die temperature at 215-225°C. Tensile energy absorption after UV ageing is audited under ISO 527-3 and ASTM D4329. Terminal products include bale wrap, silage stretch film, greenhouse replacement film, and mulch film. In all cases the food-contact status of the neat polyolefin is not sufficient for silage additives or pesticide contact; the full stretched film must be qualified against the specific agricultural chemical under the relevant national regulation.
Extrusion lamination deploys 219ZJ as a sealant layer or as a viscosity modifier in an LDPE-rich lamination stream. The melt temperature at the slot die is raised to 300-320°C to promote LDPE oxidation for substrate adhesion; the LLDPE fraction contributes sealant-layer yield before peel, with heat-seal strength measured under ASTM F88. Blends in industrial use typically contain 30-50 wt% 219ZJ with a high-speed lamination LDPE. Coat weight is controlled between 15 g/m² and 25 g/m²; higher coat weights extend air-gap cooling time but reduce line speed. Air gap is set at 200-250 mm, and chill-roll temperature is held at 15-25°C to quench the web before slitting. Neck-in is monitored across the die; butene-LLDPE-rich blends exhibit greater neck-in than neat LDPE, so edge trim is adjusted upward as the 219ZJ fraction rises. Finished laminates include pouch structures, soap wrappers, and foil/paper composites. Laminate bond strength is characterized by ASTM F904.
| Control point | Designation | Limit / method |
|---|---|---|
| Melt mass-flow rate | ISO 1133-1 | 190°C / 2.16 kg |
| Density | ISO 1183-1 | 0.919 g/cm³ |
| US polyolefin food contact | 21 CFR 177.1520 | Olefin polymers |
| EU overall migration | EU Regulation 10/2011 | 10 mg/dm² |
| Film tensile | ISO 527-3 | Type 2 specimens |
| Dart impact | ASTM D1709/A | Method A |
| Elmendorf tear | ISO 6383-2 | Constant radius |
| Heat-seal strength | ASTM F88 | 15 mm width |
In heavy-duty form-fill-seal sack production, 219ZJ is coextruded as an outer web specified for dart impact resistance. A three-layer line may use 2-4 wt% carbon-black masterbatch in the outer layer to achieve opacity and UV screening; core and inner layers remain clear or lightly pigmented. The film is run at 60-120 µm total thickness, with die gap 2.2-2.5 mm, blow-up ratio 2.0-2.5, and die temperature 210-220°C. The main process risk is screw-slip or feeding variation with pelletized carbon-black concentrate at high let-down; a grooved feed throat and graduated temperature profile from 175°C feed to 210°C die are used. Finished sacks are measured for dart impact ASTM D1709, tear propagation ISO 6383-2, and flex-crack resistance under ASTM F392. The product class includes valve sacks, patch-handle sacks, and FFS tubular sacks for cement, fertilizer, and polymer pellets.
Where microporous hygiene backsheet film is produced by machine-direction orientation, 219ZJ is used as the polyolefin matrix for calcium carbonate. The cast film is formulated with 45-55 wt% surface-treated calcium carbonate, and the filler concentrate is metered into the polymer melt at a throughput matched to screw cooling capacity to avoid agglomerates. The filled melt is extruded through a die gap of 0.8-1.2 mm at melt temperature 230-250°C, quenched on a chill roll at 20-28°C, and oriented in the machine direction at a ratio of 2.0:1 to 3.0:1. Micropore formation is verified by water vapor transmission rate under ASTM E96, while tensile properties are recorded under ASTM D882. The terminal web is used as backsheet for infant diapers and adult incontinence products; the complete film/nonwoven laminate is qualified for skin-contact under the brand owner's toxicological protocol rather than under the resin-grade food-contact certificate alone.
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SABIC LLDPE 219ZJ is a butene-comonomer linear low-density polyethylene supplied in pellet form for blown film extrusion in general-purpose packaging, carrier bags, industrial liners, lamination, and coextruded film layers. Nominal melt mass-flow rate is 2.0 g/10 min when determined at 190 °C under 2.16 kg load in accordance with ISO 1133-1:2022; nominal density is 0.918 g/cm³ determined in accordance with ISO 1183-1:2019. The additive package includes processing stabilisation and is formulated for film production; exact slip and antiblock loadings require verification against the current SABIC technical datasheet. The grade is distinguished from high-pressure low-density polyethylene by its linear molecular backbone and from hexene-based LLDPE by shorter comonomer branch length, which influences melt elasticity, toughness, and optical response.
Product selection between 219ZJ and other SABIC LLDPE film grades depends mainly on melt-flow rate and comonomer type. A lower melt-flow rate at similar density raises viscosity and orientational strength but increases extrusion backpressure; a higher melt-flow rate lowers energy consumption but may reduce bubble stability in deep-frost-line operations. Against hexene-comonomer LLDPE of equivalent density and melt-flow rate, 219ZJ typically shows lower dart impact and Elmendorf tear values at the same film gauge, because butene side branches are shorter and less effective at bridging crystalline lamellae under deformation. Against metallocene LLDPE, 219ZJ has a broader molecular weight distribution and therefore lower shear viscosity at typical die shear rates; die lip deposits and melt pressures are often lower, while optical clarity and organoleptic performance may be less favourable. The practical extent of these differences must be measured under fixed fabrication conditions because film properties shift with blow-up ratio, gauge, frost line height, and thermal history.
Blown film extrusion of 219ZJ is stable when melt temperature is maintained between 195 °C and 220 °C at the die lip. Barrel set points are commonly 180 °C–210 °C; die zones are 200 °C–220 °C. A die gap of 1.2 mm–2.0 mm and a blow-up ratio of 2.0:1–3.0:1 are typical. Higher blow-up ratio increases transverse orientation and modifies machine-direction tear; lower blow-up ratio generally favours dart impact. Frost line height should be maintained between 5 and 8 die diameters to prevent bubble sag and gauge variation. On a 50 mm groove-fed extruder with 30 L/D barrier screw and spiral mandrel die of 200 mm diameter, specific throughput of 0.35 kg/h–0.55 kg/h per millimetre die circumference is typical; motor load and melt pressure remain stable within this envelope. Melt temperature should not exceed 240 °C and residence time at temperature should not exceed 15 min, because oxidative gel formation may appear. No pre-drying is required under normal storage; if condensation forms after cold outdoor storage, pellets should be dried at 60 °C for 2 h before charging to the hopper.
Melt-flow rate alone does not define die sizing. Capillary rheometry performed in accordance with ISO 11443:2021 is required to determine pressure drop across spiral mandrel dies at the intended shear rate. Processors should generate a viscosity curve rather than extrapolating from melt-flow ratio, because the ratio is not consistently published for this grade. Melt-pressure instability below 50 bar at the adaptor may indicate feed starvation or worn screw and should be corrected before film appearance is evaluated.
Surface slip in 219ZJ film is governed by migration of the formulated slip additive to the film surface; coefficient of friction is determined in accordance with ISO 8295:2004 after conditioning for at least 24 h at 23 °C and 50% RH. Static and dynamic coefficient of friction values below 0.20 are generally required for high-speed form-fill-seal lines, but the unaged film may remain higher. Because migration rate depends on crystallinity, ambient temperature, and additive loading, processors should verify the specific package before running at line speeds above 40 cycles/min. Antiblock performance is measured by blocking force using ASTM D3354; excessive blocking causes roll telescoping on slitter rewinders. Haze measured per ISO 14782:2017 and 60° gloss per ISO 2813:2014 are sensitive to processing rate, air ring cooling, and nip roll temperature.
Slip agent bloom is time-dependent. Film wound immediately after extrusion may show a coefficient of friction above 0.40; after 48 h at ambient temperature, the value typically decreases toward the stabilised specification. Thin films below 20 µm can reach stable coefficient of friction more rapidly but may also exhibit greater surface haze. If film is stored below 10 °C, migration slows and the coefficient of friction can remain elevated; conditioning at 23 °C for 24 h before testing is therefore mandatory for comparable results.
Compliance documentation for 219ZJ must be obtained from the current SABIC regulatory datasheet. For food contact in the United States, polyethylene films may be evaluated under 21 CFR 177.1520; the finished article must meet applicable extractive limitations and end-use restrictions. For food contact in the European Union, the film is typically assessed under Commission Regulation (EU) No 10/2011 and its amendments, including overall migration limits of 10 mg/dm² or 60 mg/kg depending on packaging geometry. Electrical and electronic applications require RoHS conformity under Directive 2011/65/EU; REACH SVHC declarations are supplied separately. Processing aids and additives may be subject to regional positive lists; no claim of universal compliance is made for unapproved food-contact uses or medical device packaging.
Mechanical property reporting for 219ZJ is conducted on full-thickness film after conditioning at 23 °C and 50% RH for at least 48 h. Tensile properties are determined according to ISO 527-3:2018 or ASTM D882-18, Elmendorf tear according to ISO 6383-2:2021 or ASTM D1922-15, dart impact according to ISO 7765-1:2018 or ASTM D1709-16, and puncture resistance according to ASTM D5748-19 or ISO 7765-2:2018. Because machine-direction and transverse-direction values diverge with film orientation, specification limits must be stated by axis. Published data for this specific grade is limited for specialised applications; therefore, laboratory-scale film lines do not replace production-scale trials on the target conversion equipment.
Dart impact and Elmendorf tear are not interchangeable indices of toughness. Dart impact measured by ISO 7765-1:2018 records the mass required to cause failure under biaxial loading; Elmendorf tear measured by ISO 6383-2:2021 propagates a pre-cut slit in a single direction. A film can pass a dart impact specification but fail on machine-direction Elmendorf tear if the blow-up ratio is too high. For 219ZJ, the balance between machine-direction and transverse-direction properties should be established at fixed frost line height and die gap before setting release limits. Published data for this specific configuration is limited; therefore, converting trials on the target packaging machine are necessary.
The density of 0.918 g/cm³ places the grade in the general-purpose LLDPE range where seal initiation is lower than medium-density polyethylene but higher than ultra-low-density ethylene copolymers. Seal initiation temperature should be measured using ASTM F2029-16 or laboratory heat-seal protocols on the specific film gauge. Because seal initiation shifts with film thickness and dwell time, a single value cannot be used for all converting equipment. Published data for this specific configuration is limited.
On multilayer coextrusion lines, 219ZJ is run in core or skin layers with HDPE, LDPE, mLLDPE, or tie resins depending on target stiffness, seal, and optical profile. Die layer distribution is controlled by gear pump or gravimetric extruder output, and melt temperature of each layer is measured before entering the feedback block. In industrial liner applications, gauge bands are typically 25 µm–80 µm; films at 50 µm and above require sufficient bubble cooling to avoid blocking. Converters on rotary bag machines should set sealing jaws to 115 °C–130 °C, but seal strength must be measured using ASTM F88/F88M-21 after 24 h to confirm age-related migration effects. Puncture resistance is assessed with ASTM D5748-19 or ISO 7765-2:2018; values increase with gauge and decrease with excessive internal recycle content.
If the film is intended for agricultural silage wrap or outdoor exposure longer than 6 months, 219ZJ requires UV stabilisation at the extrusion step; the base resin alone does not provide weather resistance. Carbon black masterbatch or HALS/UV absorber packages must be added at 2 wt%–6 wt% according to masterbatch supplier guidance. In silo storage, pellets can compact under high head weight, especially in warm conditions; hopper design should avoid bridging by maintaining pellet temperature below 45 °C and conveying air dew point below 0 °C. Oxidative induction time of the pellet is measured by ISO 11357-6:2018; stabilised film should retain an OIT above 30 min at 200 °C for most converting operations. Published data for this specific configuration is limited when high levels of post-consumer recyclate are added.
Post-industrial reclaim can be added at 10 wt%–20 wt% in core layers if the scrap is clean, unprinted, and free of polypropylene contamination. Screen packs of 200/400 mesh are commonly used before the die to remove particulate contamination. With post-consumer recyclate, melt pressure variability increases and continuous screen changers are advisable. Die lip buildup from paper fibre or adhesive residues can cause gauge bands; if appearance defects appear, the screen pack should be inspected before adjusting the die gap.
Because 219ZJ is a 2.0 g/10 min butene-based grade, it is less suitable for vertical form-fill-seal packages requiring hot-tack above 2 N/25 mm immediately after seal bar release; metallocene LLDPE or ionomer blends are typically preferred. In cast film or extrusion coating, the 2.0 g/10 min melt-flow rate may limit drawdown at line speeds above 150 m/min; higher-MFR grades lower backpressure and improve melt curtain stability. These limitations are operational boundaries, not defects, and should be verified by pilot trials before specification.
