| HS Code | 958198 |
| Density Astm D792 | 0.918 g/cm³ |
| Melt Index Astm D1238 190 C 2 16kg | 1.0 g/10min |
| Tensile Yield Strength Astm D638 | 11.5 MPa |
| Tensile Break Strength Astm D638 | 26.0 MPa |
| Elongation At Break Astm D638 | 720% |
| Flexural Modulus Astm D790 | 275 MPa |
| Shore D Hardness Astm D2240 | 55 |
| Vicat Softening Point Astm D1525 | 94°C |
| Melting Point Dsc | 122°C |
| Brittleness Temperature Astm D746 | -75°C |
| Environmental Stress Crack Resistance Astm D1693 100 Igepal | >1000 hours |
As an accredited NOVAPOL LLDPE PF-0118-B factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | NOVAPOL LLDPE PF-0118-B is packaged in 25 kg moisture-protective bags, palletized and shrink-wrapped for safe handling and storage. |
| Container Loading (20′ FCL) | 20′ FCL container loading: NOVAPOL LLDPE PF-0118-B packed in 25 kg bags, palletized, secured, and ventilated for safe transport. |
| Shipping | NOVAPOL LLDPE PF-0118-B is a non-hazardous plastic resin supplied as free-flowing pellets. Ship in clean, dry containers or bulk hoppers, avoiding moisture, dust, and contamination. Store away from direct heat and ignition sources. No special transport classification required, but standard handling and spill prevention procedures should be followed. |
| Storage | Store NOVAPOL LLDPE PF-0118-B in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly closed to prevent moisture contamination and dust accumulation. Avoid static discharge and handle with clean equipment. Follow manufacturer guidelines and local regulations for safe storage. |
| Shelf Life | Shelf life is indefinite when stored indoors, dry, and away from direct sunlight and heat sources. |
NOVAPOL LLDPE PF-0118-B, a butene-copolymer linear low-density polyethylene with nominal density 0.918 g/cm³ (ASTM D1505) and melt index 1.0 g/10 min (ASTM D1238, 190°C/2.16 kg), is fed as the primary resin fraction in blown film extrusion for food-contact primary packaging. In this application the formulation is set at 75–90 wt% PF-0118-B, 10–25 wt% low-density polyethylene to raise bubble stability and lower melt-temperature sensitivity, and 0.02–0.08 wt% fluoropolymer process aid to suppress melt fracture on high-output grooved-feed extruders. The extrusion line normally uses a barrier screw with L/D 24:1–30:1, die gap 1.2–2.0 mm, blow-up ratio 2.0:1–3.0:1, and melt temperature 195–220°C. Frost-line height is maintained at 5–8 die diameters to balance film gauge uniformity against tensile strength development in the machine direction. In downstream converting, the collapsed tube is either surface-treated to a wetting tension of 38–42 mN/m before flexographic or rotogravure printing, or slit and gusseted into bags. Terminal product types include dry-food produce bags, bakery bread bags, frozen vegetable bags, and non-fatty snack overwrap. Compliance for food contact rests on FDA 21 CFR 177.1520(c) for olefin polymers and EU Regulation 10/2011 with overall migration limit 10 mg/dm² for food simulants; migration testing should follow EU 10/2011 Annex II/III or FDA guidance for heptane and xylene alternatives. Heat-seal strength is measured according to ASTM F88 on 25.4 mm specimens sealed at 105–125°C bar temperature, 0.5–1.0 s dwell, and 0.3–0.5 MPa pressure; dart impact is assessed per ASTM D1709 Method A or B depending on expected film thickness. Because PF-0118-B is a butene-copolymer LLDPE, its low-temperature seal initiation threshold is generally higher than hexene or metallocene grades and its puncture and tear balance is lower under severe sharp-object loading. Published data for PF-0118-B in retort or hot-fill configurations is limited, and such processes require barrier-layer redesign rather than monolayer substitution.
| Control parameter | Standard / method | Typical specification range |
|---|---|---|
| Melt index | ASTM D1238, 190°C/2.16 kg | 0.85–1.15 g/10 min |
| Density | ASTM D1505 / ISO 1183-1 | 0.916–0.920 g/cm³ |
| Dart drop impact | ASTM D1709 Method A/B | 60–90 g at 25 µm, typical butene LLDPE blown film |
| Elmendorf tear MD/TD | ASTM D1922 | MD 120–200 g/25 µm; TD 350–550 g/25 µm |
| Film tensile strength | ASTM D882 | MD 35–50 MPa; TD 25–35 MPa |
| Heat seal strength | ASTM F88 | ≥8 N/25 mm at 115°C seal bar temperature |
In heavy-gauge blown liner applications, film failures initiate at the intersection of low ambient-temperature brittleness and molecular orientation imbalances in the bubble, where PF-0118-B is formulated at 60–80 wt% with 20–40 wt% post-industrial recycled LLDPE/LDPE and 5–15 wt% HDPE for modulus adjustment. The HDPE fraction raises density-dependent stiffness but narrows the dart impact window if the blend is run below glass-transition-dominated low-temperature ductility thresholds, so the bubble configuration is controlled with a die gap of 2.0–2.5 mm, blow-up ratio 2.5:1–3.5:1, and melt temperature 210–240°C on extruders with L/D 24:1–30:1. Downstream production of liners typically uses air-cooled blown film, followed by inline punching, folding, or sealing of unitary refuse sacks; heavier can liners are gusseted and flat-sealed on roll winders to prevent core crushing of high-friction surfaces. Terminal product types include industrial refuse sacks, construction debris bags, can liners, and drum liners. Compliance for refuse sacks is checked against EN 13592:2017 for household and institutional refuse sacks, while REACH applies to recycled content and additives. Puncture resistance is assessed by ASTM D1709 and tear resistance by ASTM D1922; the butene-copolymer architecture of PF-0118-B gives lower notch resistance than octene metallocene LLDPE, so sharp metal shavings or glass cullet loads require a downgauged octene LLDPE or HDPE-rich formulation instead of relying on PF-0118-B alone. Published data for PF-0118-B in mixed PCR/industrial liner structures with very high recycled content remains limited, particularly for low-temperature impact after outdoor storage.
Coextrusion laminations that pair oriented polyester or biaxially oriented polypropylene print webs with a polyethylene sealant layer use PF-0118-B in the sealant layer at 60–80 wt%, with 20–30 wt% LDPE as a bubble stabilizer and 0–15 wt% plastomer to reduce seal initiation temperature. The sealant layer is maintained at 15–25% of total structure thickness to protect laminate stiffness while providing sufficient hot-tack window for high-speed vertical or horizontal form-fill-seal equipment. Production is carried out either by cast coextrusion with die temperature 220–230°C or by multiline blown film coextrusion with die gap 1.2–1.8 mm and blow-up ratio 2.0:1–2.8:1. Downstream lamination may also include solventless adhesive bonding of the PF-0118-B sealant web to reverse-printed polyester, followed by slitting and pouch making. Terminal product types include stand-up pouches, bag-in-box liners, dry-food lamination films, and overwrap for paperboard trays. Compliance for food-contact laminates is governed by FDA 21 CFR 177.1520(c) and EU Regulation 10/2011, with migration validation performed on the finished laminate rather than on the sealant resin alone. Heat-seal strength is measured per ASTM F88 and hot-tack per ASTM F2029 at seal bar temperatures 105–125°C and dwell 0.5–1.0 s; processing trials commonly compare seal performance at 0.25–0.50 MPa jaw pressure. PF-0118-B should not be specified as the direct food-contact sealant in boil-in-bag or retort structures where sustained temperatures above 100°C require autoclavable sealant resins.
For agricultural silage cover and greenhouse film formulations, PF-0118-B is compounded at 92–96 wt% with 2–4 wt% hindered amine light-stabilizer masterbatch, 2–5 wt% carbon black or titanium dioxide masterbatch for opacity and UV absorption, and 0.5–1.5 wt% medium-block slip/antiblock to control winding and film-to-film friction. The film is produced on wide-bloom blown film lines with die diameter 1600–2400 mm, die gap 2.0–2.5 mm, blow-up ratio 2.0:1–2.8:1, and melt temperature 190–210°C; the lower melt temperature is selected to prevent thermal degradation of HALS packages and to retain dart impact after field exposure. Terminal products include silage clamp covers, greenhouse side sheets, temporary crop covers, and agricultural film liners. Compliance is checked against EN 13206 for thermoplastic agricultural films and REACH restrictions for stabilizer and pigment chemistries; ultraviolet stabilizers require pre-confirmation of masterbatch carrier resin compatibility. PF-0118-B contains no antifog or anti-drip additive, so condensation control in greenhouse film requires additional additive treatment or surface coating. Without such treatment, greenhouse light transmission is progressively reduced by condensed water films on the inner surface, a failure mode frequently observed on production-scale greenhouse installations in humid climates.
Where post-consumer recycled LLDPE/LDPE film streams are melt-compounded with PF-0118-B, the resin is introduced as a virgin letdown fraction at 20–40 wt% against 60–80 wt% washed and regranulated PCR, with 0–2 wt% compatibilizer or process aid added only when batch-to-batch viscosity variation exceeds extruder pressure limits. The compounding or film conversion line is fitted with a continuous melt screen changer at 80–120 mesh and a grooved-feed section capable of L/D 30:1–34:1; melt temperature is controlled at 200–225°C to avoid gels and oxidative degradation from residual contaminants. Downstream production is usually direct blown film extrusion into refuse sacks, construction film, non-food retail bags, or secondary packaging; food-contact use is not assigned unless the PCR fraction is certified under relevant national positive lists and migration testing is completed. The quality system uses EN 15343 for recycled content traceability and REACH for chemical registration of post-consumer streams; mechanical properties are verified against virgin-film benchmarks by ASTM D882 tensile, ASTM D1922 Elmendorf tear, and ASTM D1709 dart. PCR incorporation typically lowers machine-direction tear by 10–25% relative to an all-virgin PF-0118-B baseline, depending on contaminant loading. Where the PCR fraction contains polypropylene contamination above 5 wt%, incompatibility at the crystalline interface generates visible gels and transverse-direction tear instability; melt filtration and sink-float separation are therefore mandatory upstream unit operations.
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NOVAPOL LLDPE PF-0118-B is a pelletized linear low-density polyethylene resin specified for blown film extrusion. The nominal melt index is 1.0 g/10 min when measured at 190 °C under a 2.16 kg load according to ASTM D1238 and ISO 1133-1. The nominal density is 0.918 g/cm³ when measured according to ASTM D792 or ISO 1183-1. This positions the material in the general-purpose butene-comonomer LLDPE film class. In the solid state, the absence of long-chain branching separates it from autoclave or tubular LDPE; comonomer-derived short-chain branches lower the crystalline melting point and density relative to high-density polyethylene.
Because the density is below 0.920 g/cm³, PF-0118-B is classified as a conventional linear low-density film resin for flexible packaging operations. The 1.0 g/10 min melt index provides a balance between extruder throughput and bubble stability. However, the resin does not provide the high melt strength typical of long-chain branched LDPE. On converting lines with high stalk bubble configurations, this difference must be compensated through die gap, frost line height, and cooling air adjustment.
The table below reproduces the primary published specification values for the resin. Detailed lot-level certificates of analysis should be obtained for production campaigns because the values are nominal and may shift within the manufacturer’s specified control limits.
| Property | Test method | Nominal value |
|---|---|---|
| Melt index | ASTM D1238 / ISO 1133-1 | 1.0 g/10 min |
| Density | ASTM D792 / ISO 1183-1 | 0.918 g/cm³ |
| Comonomer type | Manufacturer designation | Butene-derived short-chain branching |
| Product form | Visual inspection | Pellet |
Additional mechanical and optical film property values are not included here because those values depend on film gauge, blow-up ratio, die gap, cooling rate, and line-specific bubble stability. Published data for this specific configuration is limited outside the manufacturer’s application datasheets. Film tensile and tear testing should be carried out with ASTM D882 and ASTM D1922, respectively, on line samples rather than on compression-molded plaques.
In production-scale blown film lines, PF-0118-B is processed in single-screw extruders with smooth-bore or grooved-feed sections and L/D 24:1 to 30:1. A barrier screw with a Maddock-style mixing section is recommended to minimize melt temperature heterogeneities. A typical barrel temperature profile is 160 °C in the feed zone, 180–190 °C in the compression zone, and 190–210 °C in the metering zone; adapter and die setpoints are maintained at 190–220 °C. Melt temperature measured at the die exit should be kept between 195 °C and 230 °C. Operation above 240 °C is not recommended because antioxidant depletion can accelerate oxidative gel formation and generate black specks in the film.
Die gap settings between 1.0 mm and 2.0 mm are typical for this density and melt-index class. Blow-up ratios from 2.0:1 to 3.0:1 are used; lower blow-up ratios reduce bubble stability and increase film gauge variation, while higher ratios can overstretch the melt and reduce output. Frost line height should be set at 4 to 12 die diameters depending on air ring output and ambient conditions. At film thicknesses below 15 µm, bubble instability can occur on lines without internal bubble cooling, especially when the resin is used at the upper melt-temperature limit.
For downgauging applications, the die gap is often narrowed to 1.2 mm or below to increase drawdown; this raises die pressure and can increase screw-back pressure. On grooved-feed extruders, the feed-zone pressure should be monitored because excessive feed-block pressure can raise melt temperature above the setpoint. If a die gap below 1.0 mm is required for film below 10 µm, the extruder should be equipped with a melt pump and internal bubble cooling to maintain bubble geometry.
At 2.0:1 blow-up ratio, film tear balance is typically shifted toward the transverse direction; at 3.0:1, machine-direction tear strength increases relative to transverse-direction tear. These effects are common to LLDPE blown film and should be verified by ASTM D1922 tear testing on the final film. The frost line is a critical control variable: a frost line that is too high increases film blocking in the collapsing frame, while a frost line that is too low can result in poor optical clarity and elevated haze.
Blown film produced from PF-0118-B exhibits a heat-sealing response governed by the melting curve of the butene-comonomer LLDPE. Heat seal initiation occurs above the onset of crystalline melting, typically in the range of 100–110 °C for this density class, but the exact seal initiation temperature must be measured on the finished film by ASTM F1921 or ASTM F2029. Hot tack strength is generally superior to LDPE when tested at seal temperatures between 110 °C and 140 °C, allowing faster form-fill-seal jaw cycles. However, seal strength can be degraded by slip additives, antiblock loadings, or external contamination; converters should verify seal performance after corona treatment, lamination, or solvent-based ink application.
Corona treatment of PF-0118-B film raises surface energy to 38–42 mN/m for adhesion of solvent-based or water-based inks; treatment levels should be measured according to ASTM D2578. Over-treatment above 48 mN/m can cause surface oxidation and reduce heat seal strength. On production lines with low-output air rings and no internal bubble cooling, the limiting factor is often bubble cooling capacity rather than plastication rate. When output is increased without increasing cooling air, the frost line rises, bubble diameter becomes unstable, and film blocking can occur at the collapsing frame. The problem is more severe with PF-0118-B than with LDPE because LLDPE has lower melt strength, so the bubble is less tolerant of high frost line excursions. Chilled air or internal bubble cooling reduces the frost line height and permits higher output without increasing melt temperature.
For food-contact articles, olefin polymers of the polyethylene type are addressed by U.S. FDA 21 CFR 177.1520. The base resin may be used in contact with food under the conditions of the regulation when the final article meets density and extractable fraction limits. For European Union applications, the final film must comply with the overall and specific migration limits established in Regulation (EU) No 10/2011; verification of compliance is the responsibility of the converter because migration depends on food type, contact time, temperature, and layer structure. The grade should not be used in medical devices or pharmaceutical packaging without additional bioburden, cytotoxicity, and extractables validation under ISO 10993. Under EU REACH, polyethylene polymers are exempt from registration as polymers, but monomers and additives used in the grade must be registered where required. RoHS Directive 2011/65/EU restrictions on heavy metals apply only when the film is used in electrical and electronic equipment packaging or components; they do not replace food-contact compliance.
Substitution of PF-0118-B for LDPE on existing lines requires recalibration of bubble geometry because the resin lacks the long-chain branching that gives LDPE its high melt strength and strain-hardening behaviour. LDPE can be run at high stalk heights to stabilize a bubble, while PF-0118-B generally requires a lower frost line and a larger cooling-air volume. If the line is configured only for LDPE with a narrow die gap and high-compression screw, the barrel temperature profile should be flattened by 10–20 °C to avoid excessive viscous heating.
Compared with hexene or octene LLDPE grades of the same density and melt index, PF-0118-B typically produces lower Elmendorf tear strength and lower dart impact when measured by ASTM D1922 and ASTM D1709, particularly in film below 25 µm. The direction and magnitude of the difference must be measured for the specific film construction using the target line because comonomer distribution, catalyst system, and film cooling history influence the final property balance.
| Resin class | Molecular architecture | Processing effect | Film property effect |
|---|---|---|---|
| PF-0118-B | Linear butene-based LLDPE | Moderate melt strength; controlled shear thinning | General-purpose film toughness for liners and bags |
| LDPE | Long-chain branched | High melt strength; stable high-stalk bubble | Higher melt strength; lower tensile strength and puncture resistance |
| Hexene/octene LLDPE | Linear, longer short-chain branches | Similar extrusion viscosity; may require slightly higher melt temperature | Higher dart impact and Elmendorf tear |
| Metallocene LLDPE | Metallocene-catalyzed, narrow molecular weight distribution | Lower melt strength; higher extrusion pressure | Improved optics; high dart impact; less process stable on some lines |
These comparisons are class-level. Actual PF-0118-B film property data should be generated on the target line with the intended gauge, blow-up ratio, and masterbatch loading. The numerical designation 0118 identifies the nominal density of 0.918 g/cm³; replacement of the suffix with another additive or comonomer designation may alter coefficient of friction, blocking force, or bubble stability. Film samples should be tested by ASTM D1894 for coefficient of friction and ASTM D3354 for blocking load when the grade is changed within a production specification.
Pellet handling and storage affect processing stability. Pellets should be stored below 50 °C and away from direct sunlight to minimize stabilizer consumption. If pellets have been stored below 10 °C, they should be allowed to reach ambient temperature before feeding to prevent condensation on cold pellet surfaces. Surface moisture can create bubble defects and reduce adhesion at the nip rolls. The resin is not hygroscopic in the conventional sense, but condensation is an operational boundary. Masterbatches containing peroxides or other free-radical sources should be used with caution because residual radicals can consume the phenolic stabilizer package and increase gel counts.
The material is designed for blown film extrusion and is not intended for injection molding, blow molding, or cast film where melt-index requirements and additive packages may be unsuitable. Use in hot-fill or retort packaging should be validated under simulated end-use conditions because polyethylene softening and deformation under sustained load at elevated temperature can limit package integrity. Each application requires lot-specific testing on the production line.
