| HS Code | 259128 |
| Melt Index 190 C 2 16 Kg | 1.0 g/10 min |
| Density | 0.919 g/cm³ |
| Tensile Strength Md | 50 MPa |
| Tensile Strength Td | 44 MPa |
| Elongation At Break Md | 550 % |
| Elongation At Break Td | 700 % |
| Elmendorf Tear Md | 350 g |
| Elmendorf Tear Td | 620 g |
| Dart Drop Impact F50 | 160 g |
| Puncture Energy | 5.5 J |
| Haze | 12 % |
| Gloss 45 | 45 |
| Coefficient Of Friction Kinetic | 0.18 |
| Seal Initiation Temperature | 105 °C |
As an accredited NOVAPOL LLDPE FP-019-D factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | NOVAPOL LLDPE FP-019-D polyethylene pellets are packaged in 25 kg moisture-resistant bags, palletized and wrapped, or 1000 kg supersacks. |
| Container Loading (20′ FCL) | 20′ FCL of NOVAPOL LLDPE FP-019-D loaded as palletized bags, secured and braced for safe, efficient transport. |
| Shipping | NOVAPOL LLDPE FP-019-D is a non-hazardous polyethylene resin typically shipped in 25 kg bags, octabins, or bulk hopper trucks/railcars. Keep packaging dry and protected from extreme heat during transport. Standard freight handling applies; no dangerous goods declaration required for most routes. |
| Storage | Store NOVAPOL LLDPE FP-019-D in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and ignition hazards. Keep packaging sealed to prevent moisture absorption and contamination. Stack bags properly on pallets, avoid sharp objects, and follow safe handling procedures. Store out of reach of children and incompatible materials. |
| Shelf Life | Shelf life is indefinite when stored in a dry, cool area away from direct sunlight and heat. |
NOVAPOL LLDPE FP-019-D, with a reported density of 0.919 g/cm³ and melt index of 1.0 g/10 min determined under ASTM D1238-20 at 190 °C and 2.16 kg, enters monolayer and coextruded heavy-duty industrial sack production as the principal structural resin. Typical dry-blend addition ratios for FIBC liner and drum liner structures range from 80 wt% to 100 wt% FP-019-D, with 0 wt% to 20 wt% LDPE or fractional-melt LLDPE introduced only to stabilize bubble geometry and reduce melt fracture during extended runs. Downstream production on blown-film lines fitted with 24:1 to 30:1 L/D extruders, barrier screws with Maddock mixing sections, 1.8 mm to 2.4 mm die gaps, and dual-lip air rings commonly operates at blow-up ratios from 2.2:1 to 2.8:1, melt temperatures from 195 °C to 225 °C, and frost-line heights between 6 and 8 die diameters. At 100 wt% FP-019-D, bubble flapping and gauge drift are observed on production lines when the blow-up ratio exceeds 3.0:1; addition of 10 wt% to 15 wt% LDPE restores bubble stability but reduces dart impact, requiring converters to qualify each formulation against ASTM D1709 and ASTM D882-18. Compliance for non-dangerous goods FIBC applications is governed by ISO 21898:2004, REACH Article 33 obligations, and FDA 21 CFR 177.1520 where the sack liner may contact food during transport. Terminal product types include FIBC inner liners, drum liners, fertilizer and resin packaging sacks, aggregate sacks, and bag-in-box outer plies. If regrind is used, the maximum addition is typically limited to 15 wt% post-industrial reclaim to keep melt index drift within ±0.08 g/10 min; closed-loop recyclate containing polar contaminants has been observed to increase gel counts and tear anisotropy.
In three-layer agricultural silage cover coextrusion, FP-019-D is placed in the core or inner skin layer, with layer distribution typically set at 60 wt% to 75 wt% FP-019-D, 15 wt% to 25 wt% metallocene LLDPE in the outer skin to elevate impact and tear, and 5 wt% to 10 wt% carbon black masterbatch or combined UV stabilizer masterbatch. Downstream production uses rotating air ring chillers and internal bubble cooling on 3-layer blown-film dies with total film thickness from 150 µm to 250 µm; blow-up ratios are run between 2.5:1 and 3.5:1, melt temperature from 200 °C to 230 °C, and die gaps from 2.0 mm to 2.6 mm because agricultural film lines are commonly configured for thicker gauge and slower cooling. Carbon black masterbatch should be pre-dried at 80 °C for 4 h when warehouse relative humidity exceeds 60%, since moisture absorbed on carbon black agglomerates produces micro-voids at the core-skin interface and lowers tear strength in ISO 6383-1 measurements. Compliance for agricultural thermoplastic covering films is anchored to EN 13206:2017, REACH SVHC restrictions on certain phthalate plasticizers, and national schemes requiring UV stabilizer durability verification under ISO 4892-2 accelerated weathering. Terminal product types include bunker silage covers, silage bags, greenhouse tunnel film, fumigation film, and mulch film. The operational boundary for buried or silage leachate contact is not fully covered by standard grade datasheets; published data for FP-019-D when exposed to silage leachate containing sulfur compounds over multiple months are limited, and converters should conduct site-specific chemical resistance trials before quoting multi-season warranties.
Within blown-film lamination operations, FP-019-D serves as the sealant web that is subsequently bonded to BOPET, BOPP, aluminium foil, or functionally coated paper. The blend composition in lamination-grade film is commonly 90 wt% to 97 wt% FP-019-D, with 3 wt% to 10 wt% anti-block masterbatch containing synthetic silica at 2,000 ppm to 5,000 ppm in the final film; slip additives, when required, are introduced as erucamide masterbatch at 500 ppm to 1,500 ppm, but converters must verify hot-slip migration because FP-019-D without additional slip can block under roll tension after two to four weeks of warehouse storage. Downstream production begins on a single-layer or three-layer blown-film line with die gap from 1.6 mm to 2.0 mm, melt temperature from 190 °C to 215 °C, blow-up ratio from 2.0:1 to 2.6:1, and film thickness from 25 µm to 60 µm. The film is then corona treated in-line to 38 mN/m to 42 mN/m surface tension before adhesive lamination; solvent-free polyurethane systems on 150 m/min to 300 m/min laminators are standard. Compliance for food contact is based on EU Regulation (EU) No 10/2011 overall migration limits, FDA 21 CFR 177.1520 for olefin polymers, and REACH Article 33 declarations for substances of very high concern; non-food laminates additionally track RoHS Directive 2011/65/EU for heavy-metal restrictions in inks and coatings. Terminal product types include stand-up pouches, snack packaging, lidding film, detergent refill pouches, and pet food laminate. Lower melt temperatures are preferred to minimize oxidative gel formation in long lamination runs; operators should purge with fractional-melt LDPE before shutdown because FP-019-D can degrade if held at 230 °C for extended residence times in the extruder.
The conversion of FP-019-D into freezer-grade bags and frozen food liners requires a formulation approach that preserves low-temperature toughness without over-stabilizing the film. Formulation practice in this segment uses 85 wt% to 100 wt% FP-019-D, with 0 wt% to 15 wt% metallocene LLDPE added specifically to raise dart impact at -18 °C storage temperatures, plus anti-block masterbatch at 2,000 ppm to 5,000 ppm. Downstream blown-film production runs at melt temperatures of 190 °C to 215 °C, die gaps from 1.8 mm to 2.2 mm, blow-up ratios from 2.0:1 to 2.5:1, and frost-line heights between 5 and 7 die diameters; lower blow-up ratios reduce machine-direction orientation, which improves machine-direction tear in freezer bags. The target film thickness is 50 µm to 75 µm, and bag-making heat sealing operates from 115 °C to 140 °C. Compliance for direct food contact is anchored to FDA 21 CFR 177.1520 and EU Regulation (EU) No 10/2011, while organoleptic migration testing follows EN 1186-1 where converters verify taint transfer into fatty foods. Terminal product types include frozen vegetable bags, frozen meat liner film, ice packaging film, institutional freezer bags, and inner liners for frozen fruit cartons. The low-temperature tear ceiling is governed by die gap and orientation; published grade-specific data for FP-019-D at -18 °C across industrial die-gap settings are limited, so converters routinely run ASTM D1709 dart drop and ASTM D1922 tear on freezer-conditioned film before commercial release.
When film converters shift from industrial sacks to food-contact can liners and produce bags, FP-019-D can remain the base resin provided the downstream contact formulation is clearly separated by purging and documented contamination control. Formulation for can liners and produce bags typically uses 90 wt% to 95 wt% FP-019-D, 5 wt% to 10 wt% white masterbatch or color masterbatch, and no more than 15 wt% post-industrial regrind when allowed by the end-use specification. Downstream production is performed on single-layer blown-film lines with die gaps from 1.6 mm to 2.0 mm, blow-up ratios from 2.5:1 to 3.0:1, melt temperatures from 200 °C to 220 °C, and film thickness from 15 µm to 40 µm. Bag-making equipment heat seals at 115 °C to 140 °C; seam strength is verified against ASTM F88/F88M-21. Compliance for food-contact films includes FDA 21 CFR 177.1520, EU Regulation (EU) No 10/2011, California Proposition 65 for colorants and heavy metals, and REACH SVHC screening. Terminal product types include institutional can liners, retail produce bags, bakery bags, deli wrap, and non-hazardous waste bags. The operational boundary is additive compatibility: colorant masterbatches based on polar polymer carriers can reduce film tear resistance and alter melt flow stability; converters should use polyolefin-carrier masterbatches and pre-dried colorants to maintain consistent bubble geometry. No published evidence supports running FP-019-D above 230 °C for can-liner film without generation of oxidative gels in long production runs; therefore screens, filter elements, and die lips should be inspected after every shift.
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NOVAPOL LLDPE FP-019-D is a linear low density polyethylene blown film resin manufactured by Nova Chemicals. The grade carries a nominal density of 0.919 g/cm³ measured by ASTM D792 and a nominal melt index of 1.0 g/10 min measured under 190°C and 2.16 kg load by ASTM D1238. The combination places the product in the medium-density, medium-melt-index portion of the LLDPE film portfolio, where blown film converters require sufficient melt strength to maintain bubble geometry while retaining enough flow for thin-gauge films. The resin is not designed for injection molding, rotational molding, or profile extrusion; its molecular architecture and additive system are optimized for the elongational stress field of blown film and, in some lines, cast film processes. In coextruded structures, the grade is used in sealant skins and core layers where the 0.919 g/cm³ density balances seal initiation, stiffness, and tear propagation resistance. Manufacturer certificates should be consulted for production-lot variation, because density and melt index shift within specification intervals.
The primary specification anchor is density. The nominal density of 0.919 g/cm³, measured by ASTM D792, locates the grade below the 0.925 g/cm³ stiffness threshold for high-modulus film but above the 0.910 g/cm³ segment used for stretch film. Melt index, measured by ASTM D1238 at 190°C with 2.16 kg load, is specified at 1.0 g/10 min. Melting temperature by differential scanning calorimetry, ASTM D3418, is reported at approximately 122°C, and Vicat softening temperature by ASTM D1525 is reported near 101°C. The melt flow ratio, when available on the certificate of analysis, is used to infer molecular weight distribution; a broader distribution improves shear thinning and die pressure response but can reduce clarity in quenched films.
Film property values are non-standardized lot-to-lot. On 25 µm blown film produced at a 2.2:1 blow-up ratio and 8 die-diameter frost line height, dart drop impact tested by ASTM D1709 is generally in the 90 g to 150 g range. Machine-direction tensile strength at break tested by ASTM D882 typically falls between 35 MPa and 45 MPa, with elongation at break exceeding 600%. Transverse-direction Elmendorf tear tested by ASTM D1922 commonly exceeds the machine-direction value by 1.5× to 2.5× because oriented LLDPE films develop anisotropic crystalline lamellae. These ranges are representative of LLDPE resin with the same density and melt index; published data for this specific configuration is limited in openly accessible archives.
In capillary rheometry, an LLDPE with a melt index of 1.0 g/10 min and density of 0.919 g/cm³ exhibits a zero-shear viscosity near 8 kPa·s at 190°C. Apparent viscosity in the die-lip shear rate range of 100 s⁻¹ to 1000 s⁻¹ declines to 400 Pa·s to 900 Pa·s, consistent with a power-law index of 0.45 to 0.60 over the shear rate interval. This non-Newtonian response controls die swell, frost line stability, and gauge uniformity. Excessive shear heating in oversized extruders can reduce melt viscosity by 10% to 20% for each 10°C rise; adapter and die set points must therefore be held within a narrow band of ±5°C around the selected target to avoid bubble dancing. Film-grade LLDPE does not show the strong strain hardening observed in LDPE; bubble stability depends more on melt viscosity at low shear and on cooling air management than on extensional rheology. Melt tension measurements made with a Goettfert Rheotens device on a 1.0 g/10 min LLDPE typically fall below the values for a 0.25 g/10 min LDPE at the same melt temperature, which limits high-stalk bubble geometry unless LDPE is blended.
Die geometry exerts a stronger influence on finished properties than resin variation within the same density and melt index class. A die gap of 0.8 mm creates higher shear stress at the lip and improves transverse-direction tensile elongation but can promote sharkskin melt fracture at high output rates. A die gap of 1.5 mm lowers die pressure and permits higher throughput but requires a high blow-up ratio or a tall frost line to maintain balanced orientation. The frost line height is a first-order control variable: a frost line of 6 die diameters yields higher transverse-direction tear, while a frost line of 10 die diameters raises machine-direction tensile strength and modulus. On high-output lines, chilled-air cooling rate changes spherulite size and haze; rapid cooling on thin films quenches crystallinity and raises clarity but may lower dart impact by 10% to 20% because the tie-chain network has less time to relax.
When a converter substitutes this grade for a butene-copolymer LLDPE of equal density and melt index, film-impact performance can shift even when the two resins share the same 0.919 g/cm³ density and 1.0 g/10 min melt index. The difference arises from comonomer type and distribution; a high-alpha-olefin comonomer, where used in the product family, produces a higher concentration of load-bearing tie chains between crystalline lamellae than butene at equal short-chain branching frequency. Dart impact measured by ASTM D1709 may be 10% to 30% higher, while transverse-direction Elmendorf tear measured by ASTM D1922 can increase by 15% to 35%. The sealing window does not change solely from comonomer type; seal initiation at 105°C to 115°C and hot-tack strength measured by ASTM F1921 may remain within the normal variation of 1 N/25 mm to 3 N/25 mm across packaging lines.
The substitution also affects extrusion head pressure. Because the melt index is 1.0 g/10 min, a 50 mm single-screw extruder with an L/D ratio of 24:1 operating at 70 kg/h may record die pressure 15% to 25% higher than a 1.5 g/10 min resin under the same die geometry. The higher pressure is associated with higher shear stress at the die lip and can initiate sharkskin melt fracture if die exit velocity exceeds the critical shear stress for the resin. To avoid surface roughness, converters either raise the die temperature by 5°C to 10°C or reduce output by 10%.
In frozen food packaging, the product is evaluated for puncture resistance at -20°C using ASTM D5748. A 50 µm monolayer film typically retains puncture energy above 0.8 J, while dart impact on 25 µm film tested at -10°C may be 20% to 30% lower than at 23°C. The low-temperature impact response is not a linear function of density; LLDPE retains ductility better than LDPE at the same nominal density because of its narrower melting range and shorter chain branching. Agricultural films built from this grade are compounded with 2.0 wt% to 5.0 wt% ultraviolet stabilizer masterbatch; final field life depends on additive dispersion, light exposure, and film thickness, not solely on base resin density. In lamination and sealant layers, the 0.919 g/cm³ density supports seal initiation near 105°C; seal strength measured by ASTM F88 reaches 3 N/25 mm to 5 N/25 mm at 130°C and 0.5 s dwell time. Converters should run a heat-seal curve for each coextrusion line because seal strength is sensitive to layer thickness, cooling roll temperature, and contamination at the seal surface.
Within the NOVAPOL film family, product selection is governed by density and melt index shifts rather than by a single universal replacement factor. The grade designated FP-019-D sits between lower-density LLDPE films, with densities near 0.911 g/cm³ to 0.916 g/cm³ for enhanced tear and impact, and higher-density LLDPE films, with densities near 0.921 g/cm³ to 0.927 g/cm³ for higher modulus and lower water vapor transmission. A move from FP-019-D to a density 0.921 g/cm³ product typically increases 1% secant modulus by 10% to 20% but reduces dart impact by 10% to 25%. A move to a 0.911 g/cm³ grade lowers tensile yield stress, measured by ASTM D882, by roughly 1.5 MPa to 2.5 MPa, while increasing low-temperature impact and downgauging potential in bag applications.
Compared with low density polyethylene at similar density, NOVAPOL LLDPE FP-019-D has higher tensile strength measured by ASTM D882 and lower haze measured by ASTM D1003 in thin films, but lower melt strength and a narrower bubble stability window. Dart impact measured by ASTM D1709 may be 25% to 50% higher than LDPE at equal gauge, while Elmendorf tear measured by ASTM D1922 is frequently 2× to 3× higher in the transverse direction. The melt tension, measured with a Goettfert Rheotens or equivalent extensional rheometer, is lower than LDPE; bubble diameter control therefore depends on external cooling and die design rather than on high molecular weight distribution alone. This difference explains why the resin is often blended with LDPE at levels of 10% to 30% to improve bubble stability in high-stalk film.
In coextruded film, the layer distribution of NOVAPOL LLDPE FP-019-D must be controlled because the resin has higher melt viscosity than many LDPE skin-grade resins. Viscosity mismatch in a three-layer die can cause interfacial instability if the LLDPE layer thickness exceeds 40% of the total structure. Encapsulation and layer nonuniformity are more likely with low die gaps and high shear stress; a melt temperature difference between adjacent layers of 5°C to 10°C restores uniform layer distribution without changing screw speed. The grade should not be processed above 235°C in coex structures because degradation products can deposit on internal die surfaces and create die lines.
Where the final product code includes a slip and antiblock package, the kinetic coefficient of friction measured by ASTM D1894 may range from 0.1 to 0.3 after full additive migration. Slip migration requires 24 h to 72 h at 23°C; storage below 10°C delays the development of surface bloom and can increase blocking tendency in high-speed packaging lines. For grades without slip additive, surface friction is controlled by the converter through external post-extrusion treatment or by blending with a slip masterbatch.
Prior to extrusion, pellets stored under ambient conditions below 40°C and 50% relative humidity do not require pre-drying for standard blown film. Surface moisture from outdoor storage at relative humidity above 60% can generate melt-streak defects and microgels in the film; a desiccant hopper set at 60°C to 70°C for 1 h to 2 h removes surface water before the feed throat. Melt temperature excursions above 235°C should be avoided because the antioxidant package degrades more rapidly and oxidized gel particles accumulate at die lips. The grade is incompatible with polyvinyl chloride, PET, and polyamide recycle contamination; melt-phase differences produce interfacial defects, gels, and delamination in coextrusions. For food-contact applications, converters must obtain lot-specific regulatory confirmation for FDA 21 CFR 177.1520 and EU Regulation 10/2011 because additive packages and catalyst residues can vary across production campaigns. Continuous service above 70°C without additional stabilization is not recommended; oxidative induction time measured by ISO 11357-6 decreases rapidly with thermal aging and exposure to metal-based packaging line components. The product is not intended for high-temperature retort or autoclave packaging.
