| HS Code | 102404 |
| Density | 0.926 g/cm³ |
| Melt Index 190 C 2 16 Kg | 1.0 g/10 min |
| Melting Point | 124 °C |
| Vicat Softening Temperature | 110 °C |
| Tensile Strength At Break Md | 28 MPa |
| Tensile Strength At Break Td | 24 MPa |
| Elongation At Break Md | 400% |
| Elongation At Break Td | 700% |
| Dart Drop Impact F50 1 Mil Film | 130 g |
| Elmendorf Tear Strength Md 1 Mil Film | 300 g |
| Elmendorf Tear Strength Td 1 Mil Film | 600 g |
| Haze 1 Mil Film | 9% |
| Gloss At 45 1 Mil Film | 55 |
As an accredited NOVAPOL LLDPE TF-Y826-CP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | NOVAPOL LLDPE TF-Y826-CP is packaged as free-flowing pellets in 25 kg sealed bags, shrink-wrapped on pallets for safe transport. |
| Container Loading (20′ FCL) | 20′ FCL loading of NOVAPOL LLDPE TF-Y826-CP resin: 25-kg bags or bulk bags palletized, secured, and containerized for safe transport. |
| Shipping | NOVAPOL LLDPE TF-Y826-CP is a linear low-density polyethylene resin shipped as free-flowing pellets. It is transported in bulk railcars, hopper trucks, or multiwall paper bags, protected from moisture and contamination. The material is non-hazardous and not regulated under transport regulations. Store in a dry, cool area away from heat sources. |
| Storage | Store NOVAPOL LLDPE TF-Y826-CP in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and open flames. Keep original containers tightly sealed to prevent moisture, dust, and contamination. Avoid stacking excessively high to prevent bag deformation. Follow standard good warehouse practices; under proper conditions, shelf life is typically one year from delivery. |
| Shelf Life | Shelf life is indefinite if stored in original, unopened packaging in a cool, dry area away from direct sunlight, heat, and moisture. |
Production of machine-grade pallet wrap from NOVAPOL LLDPE TF-Y826-CP, a cast-film linear low-density polyethylene with a nominal density of 0.926 g/cm³ and melt flow rate tested per ISO 1133-1:2022, typically allocates the resin to the core layer at 70–80 wt% of the full structure, while skin layers contain 80–90 wt% of the same grade blended with 10–20 wt% of a metallocene-catalyzed polyolefin elastomer or EVA to modify cling and tear behavior; total film thickness is held between 12 µm and 23 µm. On a 2,000 mm cast coextrusion line using 30:1 L/D barrier screws, barrel temperatures are profiled from 200 °C at the feed zone to 240 °C in the adapter, with the flat die maintained at 240–250 °C and the chill roll at 18–25 °C; the web is quenched to a winding temperature below 35 °C to avoid roll blocking. Draw speeds of 350–500 m/min require edge pinning and air knife adjustment to control neck-in and maintain thickness variation below ±5%. Cling performance tested by ASTM D5458-16 is typically set between 50 g and 150 g per 25 mm width when tackifier masterbatch is limited to 0.5–1.5 wt% of the skin layer, while puncture peak load per ASTM D5748-19 is specified by converters in the range of 40–70 N for 20 µm films to resist failure on sharp pallet edges. Terminal products are machine pallet wrap, pre-stretched hand wrap, and logistics bundling film; for non-food logistics applications, REACH Regulation (EC) No 1907/2006 Annex XVII and EU Packaging Directive 94/62/EC apply, with total heavy-metal concentration limits not exceeding 100 mg/kg for lead, cadmium, mercury, and chromium(VI). Food-contact use requires separate verification of EU Regulation 10/2011 overall migration below 10 mg/dm² under intended time–temperature conditions.
At thicknesses under 25 µm, cast silage bale wrap produced with NOVAPOL LLDPE TF-Y826-CP requires core-layer allocation of 80–95 wt% LLDPE, with 5–10 wt% metallocene-catalyzed PE or EVA for dart impact retention; white masterbatch is added at 3–6 wt% and hindered-amine light stabilizer plus UV absorber masterbatch at 2–4 wt% to prevent ultraviolet embrittlement during 12–18 months of outdoor bale storage. The cast coextrusion line runs with die temperatures of 240–250 °C, chill roll temperatures of 16–22 °C, and edge trim recycled into the core at no more than 10 wt% to limit gel formation and melt-pressure fluctuation. Film thickness is monitored under ISO 4593, cling is tested by ASTM D5458-16, tensile properties by ISO 527-3:2018, and dart impact by ISO 7765-1:1988; EN 14932:2018 governs stretch thermoplastic films for bale wrapping, including dimensional stability and puncturing requirements under field conditions. Roll hardness measured by Shore C is maintained between 70 and 85; storage above 35 °C or exposure to direct sunlight at the edge of the bale can reduce cling and cause telescoping. Terminal products are round and square bale wrap, haylage film, and silage pit cover film for non-barrier applications; because silage film is not direct food-contact, EU 10/2011 migration testing is not required, but REACH 1907/2006 Annex XVII and Packaging Directive 94/62/EC limits still apply to the finished roll and packaging waste.
Form-fill-seal conversion of heavy-duty shipping sacks at packing speeds above 1,800 bags/h imposes a heat-seal window of 145–175 °C with dwell times under 0.8 s, which requires the sealant layer to contain 80–100 wt% NOVAPOL LLDPE TF-Y826-CP and 0–20 wt% low-density polyethylene to reduce seal initiation temperature and stabilize the blown film bubble. Monolayer or three-layer blown film lines equipped with internal bubble cooling, die gaps of 1.4–2.0 mm, and blow-up ratios of 2.5:1–3.2:1 are operated with extruder barrel profiles from 180 °C to 220 °C and die temperatures of 210–230 °C; a 75 mm grooved-feed extruder in monolayer service typically runs at 250–400 kg/h, yielding film thicknesses of 80–150 µm for filled-sack abuse resistance. Drop-test certification is performed under ASTM D5276-19, dart impact under ISO 7765-1:1988 or ASTM D1709-22, and tensile properties under ISO 527-3:2018. Terminal products include heavy-duty shipping sacks, fertilizer sacks, pet food bags, and inner liners for flexible intermediate bulk containers; packaging for non-hazardous goods is assessed against ISO 21898:2004, and dangerous goods shipments require UN performance testing on the completed sack rather than on the resin alone. The resin does not provide inherent moisture vapor barrier; if hygroscopic product protection is required, a barrier layer or inner moisture-barrier liner must be added by the converter.
Where frozen food pouches are produced from blown coextrusions of NOVAPOL LLDPE TF-Y826-CP, the sealant or core layer is typically formulated at 60–80 wt% LLDPE with 20–40 wt% LDPE or EVA to reduce seal initiation temperature to 85–110 °C on high-speed vertical form-fill-seal equipment. Melt temperature at the die is held at 185–215 °C, using a die gap of 1.6–2.0 mm and a blow-up ratio of 2.0:1–2.8:1 to balance transverse-direction tear resistance and machine-direction tensile strength. Film intended for package printing is corona-treated to 40–44 dyn/cm; monoweb pouches do not require adhesive lamination, but coextruded skin layers provide low-temperature sealing robustness. Low-temperature toughness is evaluated by conditioning samples at -18 °C for 24 h before ASTM D1709-22 dart impact testing, while seal strength is measured by ASTM F88/F88M-23; flex-crack resistance of converted pouches can be assessed by ASTM F392-23 Gelbo flex testing, with pinhole formation thresholds set by the individual brand owner. Compliance for frozen food contact falls under FDA 21 CFR 177.1520(c) and EU Regulation 10/2011; overall migration must remain below 10 mg/dm² under conditions of use corresponding to frozen temperatures. Terminal products include IQF vegetable pouches, frozen meat and seafood bags, and bag-in-box liners for cold liquid or viscous food systems; converters should verify that the selected additive masterbatch meets the specific food type and temperature condition.
Blending NOVAPOL LLDPE TF-Y826-CP into post-consumer recycled polyethylene for refuse sacks and institutional can liners typically uses 60–70 wt% virgin LLDPE with 30–40 wt% washed LDPE/LLDPE PCR and 2–5 wt% carbon black masterbatch; PCR fractions above 50 wt% require downgauging allowances because melt filtration screen pack size drops from 120 µm to 60–80 µm only after multiple screening passes. Blown film extrusion is performed on grooved-feed extruders with 30:1 L/D and venting or pre-drying of PCR to below 250 ppm moisture, with die temperatures of 180–210 °C to limit degradation odor and volatiles. Film thickness is set between 20 µm and 50 µm depending on target load capacity; tensile elongation at break per ISO 527-3:2018, dart impact per ASTM D1709-22, and tear resistance per ASTM D1922-23 or ISO 6383-2 are used as incoming QC after pellet-to-film conversion. Terminal products are municipal waste sacks, commercial can liners, and recyclable collection sacks; compliance is based on EN 13592:2017 for household refuse sacks, REACH 1907/2006, and Packaging Directive 94/62/EC when applicable. Published data for this specific grade blended with PCR is limited; converters must validate the exact mixed-PCR source for gel level, film roughness, and tear loss on their own blown film line before setting final PCR addition levels.
In laminated flexible packaging, the sealant web extruded from NOVAPOL LLDPE TF-Y826-CP typically contains 80–100 wt% of the LLDPE with 0–20 wt% LDPE or metallocene-catalyzed PE for reduced heat-seal initiation; the web thickness is 25–60 µm and is bonded to oriented PET, biaxially oriented polypropylene, or aluminum foil by solventless adhesive lamination. Blown film conditions include melt temperatures of 190–220 °C, a die gap of 1.8–2.4 mm, and a blow-up ratio of 2.5:1–3.0:1; the resulting film is corona-treated on the lamination side to 42–46 dyn/cm to ensure adhesive wetting. Heat-seal performance is measured by ASTM F2029-16 for seal fabrication and ASTM F88/F88M-23 for seal strength, with hermetic seals typically produced at 120–150 °C and 0.3–0.7 s dwell. Compliance for food packaging uses FDA 21 CFR 177.1520(c) and EU Regulation 10/2011, with specific migration limits for primary aromatic amines in adhesives evaluated under EU 10/2011 Annex II. Terminal products include stand-up pouches, dry snack laminates, powdered beverage pouches, and refrigerated or frozen food packaging where the sealant web is not exposed to hot-fill temperatures above 85 °C. For retort, microwave susceptor, or hot-fill applications, converters should select a higher-density or higher-comonomer sealant because the low melting point of this grade may soften at sustained elevated temperatures.
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NOVAPOL LLDPE TF-Y826-CP is a linear low-density polyethylene film resin positioned for blown-film extrusion where dart impact resistance, tear resistance, and downgauging capability are critical. Manufacturer-published nominal data identify a density of 0.926 g/cm³ when tested under ASTM D792 or ISO 1183-1, and a melt index of 0.8 g/10 min under ASTM D1238 at 190 °C/2.16 kg or ISO 1133-1:2022. The grade is supplied as virgin pellet stock for monolayer and coextruded heavy-duty sacks, industrial liners, freezer films, lamination substrates, and agricultural film structures. The CP suffix is a manufacturer-specific designation and does not by itself define a regulatory class or additive package. Compared with lower-density general-purpose LLDPE grades, the 0.926 g/cm³ density point raises secant modulus while retaining strain-at-break values that are sufficient for high-stress packaging. Compared with commodity butene-based LLDPE resins of similar density, the product family is positioned for higher impact intercept energy and greater transverse-direction tear stability; the exact comonomer type and additive formulation must be confirmed from the manufacturer’s chemistry disclosure and lot certificate.
On production-scale blown-film lines, an LLDPE resin with a melt index of 0.8 g/10 min exhibits lower melt tension than an equivalent LDPE but a higher shear viscosity across the die. Bubble stability is controlled by die gap, blow-up ratio, frost line height, and melt temperature. When processed on a 75 mm single-screw extruder with a 30:1 L/D barrier screw and a 350 mm dual-lip air ring, the starting processing envelope for this resin class is a die gap of 1.5–2.0 mm, a blow-up ratio of 2.2:1–2.8:1, a melt temperature of 205–225 °C, and a frost line height of 5–7 die diameters. Draw resonance and bubble snap often appear above a blow-up ratio of 3.0:1 or below a melt temperature of 190 °C. High-stalk extrusion, which is used to raise transverse-direction tear resistance, requires balanced venturi air-ring control; an offset annular air stream can produce edge tape curvature and film gauge variation greater than ±6%. Bubble instability in this resin class is rarely a single-variable defect. It is commonly the result of combined melt-temperature drift, air-ring turbulence, and frost line oscillation.
Capillary rheometry for this class of LLDPE at 190 °C shows a decrease in apparent shear viscosity from approximately 900 Pa·s to 120 Pa·s as apparent shear rate increases from 10 s⁻¹ to 1000 s⁻¹. Sharkskin melt fracture appears when the wall shear stress at the die exit exceeds approximately 0.14–0.30 MPa, depending on die gap and melt temperature. On film lines, die-lip pressure fluctuations above 35 MPa at the screen changer correlate with surface roughness on 75 µm monolayer film. Mitigation includes widening the die gap from 1.0 mm to 1.5 mm, raising die temperature by 5–10 °C, or adding a fluoropolymer processing aid at 200–400 ppm as an external masterbatch. The processing aid addition is not automatically present in the resin unless specified by the supplier. Melt temperatures above 240 °C may initiate oxidation and gel formation in the presence of oxygen; monitoring oxidative induction time by ISO 11357-6 is recommended when the extruder profile must be increased for coextrusion with higher-viscosity tie resins.
Downgauging comparisons are most frequently made against 0.925 g/cm³ butene LLDPE. At equal film thickness, hexene-based LLDPE films typically show dart impact values 30–50% higher under ASTM D1709-16A and Elmendorf tear values that are less orientation-dependent. For 50 µm monolayer film conditioned at 23 °C and 50% relative humidity per ASTM D618, class-level dart impact may fall in the range of 200–350 g; Elmendorf tear may range from 100–250 g in the machine direction and 250–450 g in the transverse direction under ASTM D1922. Tensile stress at break under ASTM D882 is commonly reported above 35 MPa in the machine direction for this density class, but film properties are strongly affected by die gap, blow-up ratio, frost line height, and additive masterbatch let-down ratio. Published property data for this specific additive configuration and exact film thickness is limited; the stated ranges are class-level reference bands rather than release limits.
Film converters replacing butene LLDPE with a 0.926 g/cm³ hexene-class grade can in some structures reduce film gauge by 20–30% while retaining equivalent drop impact, provided the bag seam heat-seal strength is not the limiting failure mode. The substitution is not universally process-neutral. The higher tie-molecule concentration and broader molecular weight distribution increase melt memory and can require a 10–15% increase in frost line height relative to butene LLDPE to stabilize cross-direction shrinkage. On a 400 mm annular die line with a 2.0 mm die gap and 2.5:1 blow-up ratio, seal bar temperature windows may shift by 5–8 °C, and the optimum seal dwell time may lengthen at lower web temperatures. Blending with low-density polyethylene above 20 wt% recovers bubble stability but progressively reduces dart impact and tear resistance. Heavy-duty sack constructions that require UN-certified packaging must be re-qualified by drop testing and stacking evaluation under 49 CFR 178.605 or EN 13546 after any resin substitution or downgauging trial.
Slip and antiblock performance is governed by additive migration kinetics and surface crystalline morphology. Primary amide slip additives diffuse to the film surface at a rate controlled by storage temperature and film thickness; static coefficient of friction measured under ASTM D1894 may remain above 0.50 immediately after extrusion and decrease below 0.20 after 7 days at 23 °C. Film stacks stored above 40 °C may develop blocking because migratory slip agents can plasticize the surface layer. Synthetic silica antiblock at 1000–3000 ppm is typical in thin-gauge polyethylene films, but the actual formulation in NOVAPOL LLDPE TF-Y826-CP must be confirmed by the supplier. Organoleptic-sensitive applications require extraction evaluation under EN 1186 or FDA 21 CFR 177.1520 end-use conditions. Although polyolefin hydrolysis is negligible, storage in unheated silos at ambient relative humidity above 60% can introduce surface moisture on pellets. When the temperature differential between the silo and extruder feed throat exceeds 10 °C, condensation can produce surface splay in film; pre-drying in a desiccant dryer at 70 °C for 2 h is a common corrective action.
| Parameter | Typical range | Equipment/measurement condition |
|---|---|---|
| Extruder L/D ratio | 24:1–30:1 | Grooved-feed single-screw, barrier screw |
| Melt temperature at die | 190–230 °C | Thermocouple at die adaptor |
| Annular die gap | 1.2–2.0 mm | Coextrusion or monolayer blown-film die |
| Blow-up ratio | 2.0:1–3.0:1 | Dual-lip air ring, stable bubble |
| Frost line height | 5–8 die diameters | Adjustable iris ring or air flow control |
| Screen pack | 40/60/80 mesh | Pressure monitored at screen changer |
| Melt pressure | 20–35 MPa | Pressure transducer before breaker plate |
Regulatory status for this grade must be obtained from the supplier’s product compliance statement for the intended jurisdiction and food-contact condition. The resin is frequently used in packaging applications where FDA 21 CFR 177.1520 is cited for olefin polymers, but the citation alone does not confer food-contact approval for all food types, temperature profiles, or film structures. European applications require verification under Regulation (EC) 1935/2004 and, where relevant, Regulation (EU) 10/2011 for plastic materials intended to contact food. The specific clause applicable to overall migration is 10 mg/dm² for general food contact unless the food type requires a reduced limit. Heavy-metal restrictions fall under RoHS Directive 2011/65/EU with maximum concentration values of 0.1% by weight for lead, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers, and 0.01% for cadmium in homogeneous materials. REACH compliance under EC 1907/2006 requires confirmation that the grade contains no substance of very high concern above the applicable communication threshold. Processors should not assume that the absence of intentionally added substances removes the obligation to evaluate impurities, reaction by-products, or masterbatch components added downstream.
| Regulation/standard | Scope | Typical verification requirement |
|---|---|---|
| FDA 21 CFR 177.1520 | Olefin polymers for food contact | End-use temperature and food type confirmation |
| Regulation (EC) 1935/2004 | Framework regulation for food-contact materials | No transfer of constituents above acceptable health risk |
| Regulation (EU) 10/2011 | Plastic food-contact materials | Overall migration limit of 10 mg/dm² |
| RoHS Directive 2011/65/EU | Restriction of hazardous substances | Cd 0.01%; Pb, Hg, Cr(VI), PBB, PBDE 0.1% in homogeneous material |
| REACH (EC) 1907/2006 | Registration, evaluation, authorisation of chemicals | SVHC communication and restriction screening |
| ISO 9001:2015 | Quality management system at production site | Lot traceability and certificate of analysis |
Processors using post-consumer recycle with NOVAPOL LLDPE TF-Y826-CP should not exceed 20 wt% recycled content without re-testing film impact, tear, and heat-seal strength. Gel accumulation on melt screens and die lip fouling are the most common production-line failure modes when recycled material is introduced without sufficient filtration. The melt screen should be inspected after each 8–12 h run during startup trials, and pressure drop across the screen pack should be recorded against the virgin baseline. If the pressure drop increases by more than 5 MPa within a single shift, the recycled content or screen mesh must be adjusted before continuing commercial production.
