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Anhui Liwei Chemical Co., Limited.

ELEVATE EF206 Ethylene Vinyl Acetate Copolymer

    • Product Name: ELEVATE EF206 Ethylene Vinyl Acetate Copolymer
    • Factroy Site: Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Anhui Liwei Chemical Co., Limited.
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    Specifications
    HS Code 353514
    Density 0.932 g/cm³
    Melt Index 2.0 g/10 min (190°C, 2.16 kg)
    Vinyl Acetate Content 20 wt%
    Melting Point 84°C
    Vicat Softening Point 57°C
    Tensile Strength At Break 15 MPa
    Elongation At Break 700%
    Flexural Modulus 40 MPa
    Shore A Hardness 93
    Brittleness Temperature -76°C

    As an accredited ELEVATE EF206 Ethylene Vinyl Acetate Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing ELEVATE EF206 EVA copolymer supplied as free-flowing pellets in 25 kg multi-wall paper bags, ensuring safe handling and storage.
    Container Loading (20′ FCL) 20' FCL container loading of ELEVATE EF206 EVA copolymer, ensuring stable, dry, ventilated stowage to prevent damage during transit.
    Shipping ELEVATE EF206 Ethylene Vinyl Acetate Copolymer ships as solid pellets in sealed bags or supersacks. It is non-hazardous and generally not regulated for transport by DOT, IMDG, or IATA. Keep packaging dry, avoid excessive heat or moisture, and handle to prevent dust accumulation. Standard freight, rail, or container shipment is acceptable.
    Storage Store ELEVATE EF206 Ethylene Vinyl Acetate Copolymer in a cool, dry, well-ventilated area, away from heat, sparks, open flames, and direct sunlight. Keep containers tightly closed and protected from moisture and physical damage. Avoid contact with strong oxidizing agents. Maintain stable temperatures to prevent degradation, and follow first-in, first-out stock rotation for optimal shelf life.
    Shelf Life Store in original packaging, cool and dry. Shelf life is two years from date of shipment if unopened.
    Application of ELEVATE EF206 Ethylene Vinyl Acetate Copolymer

    ELEVATE EF206, with a nominal vinyl acetate comonomer content of 20.6 wt%, a melt flow rate of 2.0 g/10 min under ISO 1133-1:2022, and a density of 0.940 g/cm³ per ASTM D1505, is compounded into a closed-cell midsole formulation in a Banbury internal mixer with a fill factor of 0.75–0.85 before the addition of azodicarbonamide blowing agent. The resin phase uses 100 phr ELEVATE EF206, 15 phr ethylene-octene polyolefin elastomer, 3.0 phr calcium stearate, 1.2 phr zinc oxide, and 0.8 phr dicumyl peroxide with 98% active content. Batch dropping at 105–115 °C avoids premature blowing-agent decomposition while peroxide scorch time, measured at 170 °C by rheometer per ISO 6502, is maintained above 1.5 min. The compound is sheeted, granulated, and cured in a compression press at 165 °C for 10 min with a pressure of 15 N/mm², producing a density of 0.22 g/cm³ and a Shore A hardness of 60 per ISO 7619-1:2019. Crosslink density is confirmed by moving die rheometer torque increase of 2.5–3.5 dN·m. Tear strength per ISO 34-1:2015 Method B is typically 4.5–5.5 kN/m. Drying is required at 60 °C for 3 h when ambient relative humidity exceeds 60% because residual moisture creates surface pinholes. The final component is a skate and athletic midsole with compression set below 30% after 6 h at 50 °C per ISO 815-1:2014. Regulatory screening covers REACH Annex XVII items 50–52; the blowing agent is selected with decomposition residues below 20 ppm for non-food consumer goods. Published EF206-specific expansion ratio data for this exact formulation is limited; the processing window reflects production-scale ranges for 18–25 wt% VA foam grades.

    What Melt Viscosity Window Sustains Hot Melt Adhesive Tack?

    Hot melt adhesive formulations using ELEVATE EF206 are prepared in jacketed sigma-blade mixers with a working capacity of 500–1,000 kg at a set point of 165 °C under a nitrogen blanket limited to 0.5 m³/h. The resin is combined with 35 wt% ELEVATE EF206, 38 wt% hydrogenated C9 hydrocarbon tackifier with a softening point of 105 °C according to ASTM E28, 22 wt% paraffin wax with a melting point of 66 °C according to ASTM D87, and 0.8 wt% hindered phenolic antioxidant. Mixing torque rises from 15 N·m to 45 N·m after melting, and the batch is dropped at 175 °C. Viscosity is measured with a Brookfield thermosel spindle 27 at 180 °C, giving 1,800–2,200 mPa·s, and must remain below 2,500 mPa·s for wheel and nozzle coaters. Open time on polyethylene and PET substrates is controlled to 4–8 s, and loop tack on corrugated board reaches 3.0–4.5 N per ASTM D6195-19. The adhesive is applied at 160–170 °C through heated slot dies with a coat weight of 15–25 g/m². Terminal applications include carton sealing, bookbinding, and foam bonding. The formulation is not suitable for continuous pot temperatures above 190 °C because thermal degradation increases the acid number and produces gel particles above 100 µm after 24 h. Food-contact use requires the final adhesive to comply with FDA 21 CFR 175.105 and EU Regulation 10/2011 where applicable; the raw resin alone does not provide a compliance declaration.

    Flame-retardant cable sheathing compounds based on ELEVATE EF206 are produced on a co-rotating twin-screw extruder with a 44:1 L/D ratio, a barrel diameter of 75 mm, and side-feeding at the 28 D position. The formulation contains 100 phr ELEVATE EF206, 140 phr precipitated aluminium trihydrate with a specific surface area of 7 m²/g, 20 phr magnesium dihydroxide, 1.5 phr vinyl silane coupling agent, 3.0 phr zinc borate, and 2.0 phr hindered amine stabilizer. The temperature profile from feed to die is 130 °C, 145 °C, 155 °C, 160 °C, 160 °C, 155 °C; screw speed is held at 250 rpm to reduce viscosity degradation. The limiting oxygen index reaches 38% under ASTM D2863, and the compound passes a single vertical wire flame test at 60 s ignition per IEC 60332-1-2. Smoke density is below 90 under ASTM E662 in flaming mode after 4 min. Tensile strength is 12–14 MPa and elongation at break is 180–220% under ISO 527-2:2012. The main processing risk is water release from ATH above 190 °C; therefore, head pressure is limited to 8 MPa and die inlet temperature must not exceed 165 °C. Terminal products are low-smoke zero-halogen sheathing for building cable, control cable, and solar cable. Compliance is checked against IEC 60754-1 for pH above 4.3 and conductivity below 10 µS/mm, and RoHS 2011/65/EU Annex II for lead, mercury, cadmium, hexavalent chromium, and brominated flame retardants at the homogeneous material level.

    StandardScopeAcceptance criterion
    IEC 60332-1-2Vertical flame propagation on single cableChar height below 425 mm
    IEC 60754-1Halogen acid gas releasepH above 4.3; conductivity below 10 µS/mm
    IEC 60754-2Smoke density during combustionTransmittance above 60%
    RoHS 2011/65/EURestricted substances in homogeneous materialsPb below 1000 ppm; Cd below 100 ppm; Hg below 1000 ppm; Cr VI below 1000 ppm

    Masterbatch Carrier Function in Polyolefin Dilution Streams

    ELEVATE EF206 is used as a carrier resin in pigment and additive masterbatches for blown and cast film dilution. The carrier phase is 35–40 wt% ELEVATE EF206, the active pigment is 20–45 wt% organic or inorganic pigment, and the remainder is 10–15 wt% polyethylene wax and 3–5 wt% calcium stearate dispersant. Compounding is performed on a co-rotating 40 mm twin-screw extruder with a 36:1 L/D, vacuum-assisted devolatilization at -0.08 MPa, and screw speed of 300 rpm. Melt temperature is limited to 155–165 °C because higher temperatures shift the residence time distribution and increase low-molecular-weight volatiles. Filter pressure value on a 25 µm screen pack in a single-screw film line is maintained below 0.4 bar/g at 190 °C when the masterbatch is let down at 4 wt% into linear low-density polyethylene. The terminal articles are printed carrier bags, agricultural film, and surface protection film with a final pigment loading of 0.5–1.5 wt%. Incompatibilities occur with rigid PVC stabilized with lead-based systems above 180 °C due to accelerated acid generation; masterbatch destined for EU markets must conform to REACH Annex XVII and the Packaging and Packaging Waste Directive 94/62/EC heavy metal limits of 100 ppm total lead, cadmium, mercury, and chromium VI.

    When ELEVATE EF206 Is Coextruded as a Sealant Layer on Cast Film Lines

    Cast film structures with a sealant layer of ELEVATE EF206 are produced on twin-screw extruders feeding a 2,500 mm coat hanger die with a die gap of 0.3–0.5 mm. The sealant layer is 12–18 µm in a total film thickness of 50–80 µm. Melt temperature is set between 210 °C and 230 °C; die lip temperature is held within ±2 °C of the centre to avoid width-dependent seal initiation shifts. Hot tack is measured at 120–130 °C on a J&B hot tack apparatus with a 0.5 N/25 mm seal force and 0.2 s dwell, yielding 2.0–3.5 N/25 mm on LLDPE-rich substrates. Heat seal strength after 24 h conditioning at 23 °C and 50% relative humidity reaches 8–12 N/25 mm under ASTM F88/F88M-21. The polar vinyl acetate content improves interlayer adhesion to barrier tie resins and aluminium foil at levels of 3–5 N/15 mm, measured per ASTM D1876. Processing limitations include blocking when the film roll is stored above 30 °C, since the film surface tack increases with residual EVA content; chill roll temperature is therefore maintained at 15–20 °C. Terminal applications are lamination films, bakery overwrap, and frozen food lidding. Food-contact use requires the final film to meet FDA 21 CFR 177.1350 for EVA copolymers and EU Regulation 10/2011 overall migration limit of 10 mg/dm².

    Injection Moulded Anti-Vibration Pads and Shore Hardness Limits

    ELEVATE EF206 is filled with 60 phr barium sulfate and 20 phr calcium carbonate to produce injection-moulded anti-vibration pads and appliance damping blocks. The compound is mixed in a co-rotating twin-screw extruder at 160 °C, pelletized, and injection moulded on a 120-ton machine with a screw L/D of 20:1 and a compression ratio of 2.5:1. Barrel temperatures are 150 °C, 165 °C, 175 °C, 180 °C; the mould is held at 25 °C. Injection pressure is 80–100 MPa with a holding pressure of 60 MPa for 5 s. The filled compound density rises to 1.55 g/cm³; Shore A hardness is 75–80 per ISO 7619-1:2019; rebound resilience is 25–30% per ISO 4662:2017. Compression set at 23 °C after 24 h is below 20% per ISO 815-1:2014. The main process conflict is abrasive filler wear on the screw tip and check ring; hardened bimetallic barrels and a screw speed below 100 rpm are specified to limit screw wear to 0.1 mm per 1,000 h. Terminal articles include washing machine damping pads, HVAC compressor grommets, and industrial machine mounts. Odour and VOC emissions are checked under VDA 278 with toluene equivalents below 50 µg/g for automotive acceptance. The compound is not recommended for continuous service in contact with aromatic solvents or DOP-based plasticized PVC because phthalate migration can soften the pad surface and reduce static friction.

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    Certification & Compliance
    More Introduction

    ELEVATE EF206 Ethylene Vinyl Acetate Copolymer is a pelletized low-vinyl-acetate ethylene copolymer used in thin-gauge flexible packaging, overwrap, and form-fill-seal film structures. Commercial technical documentation lists a nominal vinyl acetate content of 6.5 wt% measured by Fourier-transform infrared spectroscopy under ASTM D5594-18, a melt mass-flow rate of 2.0 g/10 min under ASTM D1238-20 with a 2.16 kg load at 190 °C, and a nominal density of 0.929 g/cm³ under ASTM D1505-18. The comonomer level places the resin in the low-VA segment of the EVA family, where reductions in crystalline melting point and stiffness are moderate relative to LDPE and substantially smaller than in flexible EVA grades containing 18–28 wt% VA.

    The product grade is specified for extrusion-grade film and is not intended as an adhesion tie layer or as a high-cling pallet-wrap resin. Additive packages for slip, antiblock, and thermal stabilization are supplied in the commercial formulation; exact additive loadings and optical performance data are controlled in the supplier’s current technical datasheet. Since the comonomer disrupts the polyethylene backbone at low frequency, the solid-state structure retains sufficient crystallinity for mechanical strength while broadening the seal-initiation threshold relative to LDPE homopolymer. Published data for end-use seal strength across all film gauges and sealed-jaw configurations is limited to customer trials in specific packaging lines.

    Differential scanning calorimetry traces of low-VA EVA grades with 6.5 wt% vinyl acetate typically show a broad melting endotherm between 80 °C and 110 °C, with peak melting near 105 °C under ISO 11357-3:2018 at 10 °C/min. The comonomer units shorten the average methylene sequence length and reduce the enthalpy of fusion relative to LDPE homopolymer. This broadening is the structural basis for the lower seal-initiation threshold. On slow cooling, fewer large spherulites form, and the rate of secondary crystallization is sufficiently high that gauge-dependent curl and blocking can be controlled by rapid quench on a chill roll at 15–25 °C.

    What is the rheological signature of ELEVATE EF206 in cast film extrusion?

    At a melt mass-flow rate of 2.0 g/10 min, the grade is processed at the higher-throughput end of conventional single-screw extrusion lines. The recommended melt temperature window for cast film and blown film is typically 190–215 °C, with feed-zone temperatures near 160 °C and metering-zone temperatures near 200 °C. A screen pack of 60/120/60 mesh is used on 30:1–40:1 L/D single-screw extruders to minimize gel defects; observed melt pressure in a 65 mm 40:1 L/D extruder is typically 8–12 MPa at output rates of 80–100 kg/h, depending on screen age and die restriction. The melt exhibits moderate shear thinning; capillary rheometry data are not published for this exact formulation, but low-VA EVA with comparable melt index typically displays shear viscosity in the 200–400 Pa·s range at 100 s⁻¹ and 190 °C. Processors should verify this value on the production machine because batch-to-batch variation and additive package can shift the viscosity profile.

    PropertyNominal valueTest method
    Melt mass-flow rate2.0 g/10 minASTM D1238-20
    Density0.929 g/cm³ASTM D1505-18
    Vinyl acetate content6.5 wt%ASTM D5594-18

    On blown film lines, the resin is typically processed with die gaps of 1.0–1.5 mm and blow-up ratios of 2.2:1–2.8:1. Frost line heights of 250–400 mm above the die are used to stabilize the bubble while maintaining haze below 6% for 50 µm film under ASTM D1003-21; however, optical properties are substantially influenced by the selected antiblock package. Bubble instabilities at low melt temperatures are indicated by oscillation in bubble diameter and gauge variation exceeding ±5%. If the melt temperature at the die lip falls below 185 °C, lower film gauge uniformity and screen-pack pressure fluctuations may occur on high-output lines. Use of erucamide slip at 500–1500 ppm and silica antiblock at 2000–5000 ppm is common to control coefficient of friction. Migration kinetics of erucamide in low-VA EVA are slower than in LDPE because the polar comonomer interacts with amide groups; film-to-film coefficient of friction measured by ISO 8295:1995 stabilises only after 24–72 h of ambient ageing. Inline corona treatment at 38–42 mN/m surface energy is typically required for print adhesion on blown film; the presence of migratory slip can lower dyne level and should be planned into the print-release schedule.

    Heat-Seal Initiation Threshold in Blown Film Structures

    Published data for the seal-initiation temperature of this exact configuration is limited. However, low-VA EVA grades with a melt index of 2.0 g/10 min and density of 0.929 g/cm³ are reported to seal in the 88–96 °C range under laboratory conditions of 20 mm flat-jaw width, 0.4 MPa contact pressure, and 0.5 s dwell, with seal strength measured according to ASTM F88/F88M-21. The reported window is narrower than high-VA EVA grades, which initiate at 65–75 °C under the same jaw configuration, and lower than LDPE homopolymer, which typically initiates at 105–115 °C. Hot-tack strength measured by ASTM F1921-24 on a 50 µm blown film is typically lower than that of EVA grades containing 12–18 wt% VA, reflecting reduced low-temperature melt elasticity. Converters running vertical form-fill-seal equipment at 60–80 packages/min should set seal-bar temperatures above 100 °C for dwell times below 0.3 s to maintain consistent seal strength.

    Food-contact and packaging compliance is established through the base resin rather than through the final fabricated article. The grade is specified by the supplier for compliance with FDA 21 CFR 177.1350 for ethylene-vinyl acetate copolymers when used under the applicable conditions of use. In the European Union, the final structure must meet the overall migration limit of 10 mg/dm² specified in Commission Regulation (EU) No 10/2011 after testing with food simulants appropriate to the intended contact. The presence of processing aids, printing inks, or masterbatches requires separate conformity assessment. For electrical and electronic packaging exclusion, RoHS compliance under Directive 2011/65/EU is not presumed and must be verified for the specific final component.

    When LDPE homopolymer lacks sufficient seal latitude

    The most common substitution scenario is replacement of LDPE homopolymer in blown film for frozen food overwrap and collation shrink. LDPE homopolymer with a melt index of 2.0 g/10 min requires higher seal-bar setpoints and produces a narrower process window on form-fill-seal machines. The incorporation of 6.5 wt% vinyl acetate in ELEVATE EF206 reduces seal initiation by approximately 10–15 °C relative to LDPE homopolymer while maintaining sufficient film stiffness for machine handling; the reduction is not as large as a 12–18 wt% VA grade, but the product retains higher secant modulus. The resulting film can be drawn through high-speed packaging lines at reel tensions of 20–30 N without excessive deformation. Adequate tear resistance is maintained in 50–80 µm gauges; tear propagation is measured under ASTM D1922-15, and dart impact resistance is measured under ASTM D1709-15e1 method A.

    ParameterELEVATE EF206LDPE homopolymerEVA 18 wt% VA
    Vinyl acetate content6.5 wt%0 wt%18 wt%
    Density0.929 g/cm³0.922 g/cm³0.940 g/cm³
    Seal initiation88–96 °C105–115 °C65–75 °C

    Substitution Boundaries in Extrusion Coating and Lamination

    The grade is not a functional adhesion tie layer. In extrusion coating and laminating lines where the seal layer is coated directly onto aluminium foil or corona-treated polyester film, a low-VA EVA such as ELEVATE EF206 produces lower peel adhesion than EVA resins containing 18–28 wt% vinyl acetate. Peel adhesion measured by ASTM D1876-08 for a 9 µm aluminium foil laminate can fall below 0.5 N/15 mm without a primer, while a high-VA EVA tie layer commonly exceeds 4.0 N/15 mm under the same coat weight. Published data for this specific configuration is limited, but the lower VA content reduces the concentration of polar acetate groups available for hydrogen bonding or acid-base interaction with metal oxide and ester surfaces. The resin should therefore be positioned as a seal layer in coextruded or blended structures where adhesion is supplied by a separate tie layer or primer.

    Storage and handling follow standard polyolefin practice. Pellets should be stored in sealed containers at ambient temperature and protected from UV and moisture; if surface moisture exceeds 300 ppm, drying at 65–70 °C for 2–4 h in a desiccant dryer is recommended before extrusion. The melt is incompatible with strong oxidizing agents, acetals, and certain low-molecular-weight amines at processing temperatures. Purging after processing can be performed with a polyolefin having a melt index of 1.0–2.0 g/10 min, using a barrel capacity of 8–10 times the screw volume to displace the resin. Mixing with grades containing high levels of sodium or calcium stearate is not recommended unless the entire formulation has been validated for heat-seal performance under ASTM F88/F88M-21, because these additives can migrate to the sealing surface and reduce seal strength at low temperatures.