| HS Code | 379005 |
| Va Content | 19% |
| Melt Flow Index 190 C 2 16kg | 150 g/10min |
| Density | 0.94 g/cm³ |
| Melting Point | 85 °C |
| Vicat Softening Point | 60 °C |
| Shore A Hardness | 88 |
| Tensile Strength At Break | 6.0 MPa |
| Elongation At Break | 700% |
| Brittleness Temperature | -70 °C |
| Glass Transition Temperature | -40 °C |
As an accredited LG EVA 19150 Ethylene Vinyl Acetate Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | LG EVA 19150 is packaged in 25 kg polyethylene-lined paper bags on pallets, shrink-wrapped for protection. |
| Container Loading (20′ FCL) | 20′ FCL loading of LG EVA 19150 copolymer: palletized bags secured, protected from moisture/heat, ensuring safe, stable transport. |
| Shipping | LG EVA 19150 is shipped as solid pellets in moisture-resistant bags or bulk containers. Store in a cool, dry area away from heat, ignition sources, and strong oxidizers. Ensure proper ventilation and grounding during handling. Avoid dust accumulation; use protective gear. Follow standard industrial safety protocols for polymer resins. |
| Storage | Store LG EVA 19150 in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and oxidizing agents. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid temperatures above 30°C to preserve flow and properties. Use within one year of receipt for optimal performance. |
| Shelf Life | Shelf life is approximately 2 years when stored unopened in a cool, dry place away from sunlight and moisture. |
At 19 wt% vinyl acetate content and a melt flow index of 150 g/10 min measured under ISO 1133-1:2022 at 190 °C and 2.16 kg, LG EVA 19150 functions in hot-melt adhesive compounding as the low-viscosity macromolecular backbone controlling cohesive strength, substrate wetting, and open time. In continuous hot-melt production, the polymer is melted in a vertical drum unloader or grid melter at 150–170 °C, transferred through a heated gear pump, and applied through multi-nozzle slot-die heads at a Brookfield Thermosel viscosity of 1,200–3,500 mPa·s measured with spindle SC4-27 under ASTM D3236-14. Industrial packaging formulations typically compound 20–35 wt% LG EVA 19150 with 30–50 wt% hydrogenated hydrocarbon tackifier, 15–25 wt% paraffin or Fischer-Tropsch wax, and 0.5–1.5 wt% hindered phenolic antioxidant. Below 20 wt% polymer, the formulation exhibits stringing on high-speed nozzle tips and insufficient cohesive strength for case sealing at line speeds of 80–120 cartons per minute; above 35 wt% of this high-MI grade, open time extends beyond the compression cycle of high-speed carton folders, and molten bead stability on freezer-grade paperboard is reduced. A batch-to-batch drift of tackifier softening point of ±2 °C can shift open time by 0.5–1.5 s on a 120 cartons/min line; therefore, receiving inspection of tackifier and wax lots against the internal softening-point specification is required before compounding. Compounding is carried out in a jacketed sigma-blade mixer at 120–140 °C under nitrogen for 45–90 min, followed by strand pelletizing or cast-block packaging. Food-contact adhesive compliance is assessed under FDA 21 CFR 175.105 and, where the final package is sold in the EU, Regulation (EU) No 10/2011 with total migration not exceeding 10 mg/dm² under the relevant food simulant designated in Annex III. Terminal product types include case and carton sealing adhesives, bookbinding spine glue, and label-securing hot melts for corrugated and paperboard packaging.
Wax processing lines that incorporate LG EVA 19150 use the polymer to increase wax toughness, reduce bleed-through on coated corrugated board, and raise the congealing point of waxed paper and container-candle formulations. Addition levels in wax finishing are normally 2–8 wt%, with the pellets dry-blended into molten paraffin at 105–125 °C in an oil-jacketed kettle equipped with a low-shear anchor impeller operating at 30–60 min⁻¹. Above 8 wt%, melt viscosity increases to a level that impairs curtain-coating uniformity and wicking into the fluting tips of corrugated medium; below 2 wt%, the improvement in blocking resistance and scuff resistance is marginal within the normal corrugated-box handling window. The wax-EVA blend is tested for congealing point under ASTM D938-15, drop melting point under ASTM D3954-15, and bending stiffness of coated board under ISO 5628:2019 after coating. Compliance for food-contact wax coatings is evaluated under FDA 21 CFR 176.170 for paper and paperboard components in contact with aqueous and fatty foods, and under Regulation (EU) No 10/2011 where the wax blend forms a plastic layer on the food-contact surface. Published compounded-wax viscosity data specific to LG EVA 19150 at commercial addition levels remain limited; the process ranges given above are pilot-starting bands that require validation on the intended coating line. Terminal product types include container candle blends, wax-coated corrugated fruit boxes, and moisture-barrier paperboard for frozen food transport.
Carrier resins based on LG EVA 19150 are selected for masterbatches that demand rapid wetting of high-surface-area carbon black and organic pigments at relatively low melt temperatures, thereby reducing thermal degradation of heat-sensitive colorants. In a co-rotating twin-screw extruder with a 45 mm screw diameter and L/D 44:1, the melt zone is set from 90 °C in the feed barrel to 150–160 °C at the die head, with a screw speed of 400–600 min⁻¹ and a specific energy input of 0.15–0.22 kWh/kg. The carrier is typically used at 40–70 wt% of the masterbatch formulation, with pigment loadings of 20–40 wt% and external process aids at 2–5 wt%. The low melt viscosity of the grade reduces the pressure drop across the screen changer and permits die-face pelletizing at melt temperatures below 165 °C, but it also reduces strand melt strength; strand pelletizing is therefore preferred only with a chilled water bath of 15–20 °C and a puller speed matched within ±1 % of die output to avoid necking. Moisture uptake above 0.1 wt%, measured by ISO 15512:2019, is addressed by pre-drying the pellets at 60 °C for 2 h when ambient relative humidity exceeds 60 %. The grade is not recommended as the sole carrier when high melt strength is required for thick-strand pelletizing; in that configuration, a lower-MI EVA or LDPE co-carrier must be blended in. Regulatory compliance for color concentrates supplied to food-contact packaging converters is anchored to 21 CFR 178.3297 for polymer colorants, Regulation (EU) No 10/2011 Article 6 for overall and specific migration, and REACH Annex XVII restrictions for azo-dye-derived aromatic amines. Terminal product types include polyolefin color masterbatch pellets, slip and anti-block additive concentrates, and UV stabilizer concentrates for blown film and injection moulding.
Compounding polymer-modified bitumen with LG EVA 19150 begins with paving-grade base bitumen reheated to 175–185 °C in a jacketed vertical tank equipped with an internal high-shear rotor-stator mixer operating at 2,500–3,500 min⁻¹. The addition window for this high-MI grade is 3–7 wt% based on total binder mass; below 3 wt%, the polymer phase is insufficient to form a continuous network after high-shear digestion, while above 7 wt% the blend tends to exhibit storage instability and viscosity build that complicates tanker offloading at 180 °C. Pellets are metered into the bitumen over 20–40 min, followed by high-shear mixing for 1.5–2.5 h and then low-shear agitation for 3–5 h to allow polymer swelling and phase inversion. Softening point is measured under ASTM D36/D36M-14(2020), penetration under ASTM D5/D5M-20, and elastic recovery under ASTM D6084/D6084M-18; PMB conformity for the European market is assessed against EN 14023:2010 clause 5 for polymer-modified binder properties. Storage tanks require continuous low-shear agitation at 160–170 °C because the high melt flow and relatively low molecular weight of the grade reduce phase stability compared with lower-MI EVA grades; overtemperatures above 195 °C during mixing accelerate oxidative skin formation on the tank walls. Terminal product types include highway PMB binders, bridge-deck waterproofing membranes, and asphalt-based sealant compounds for airport pavement joints.
| Application | Primary standard | Test method / clause | Conformity parameter |
|---|---|---|---|
| Hot-melt packaging adhesive | FDA 21 CFR 175.105 | ASTM D3236-14 | Viscosity 1,200–3,500 mPa·s at application temperature |
| Paraffin wax coating | FDA 21 CFR 176.170 | ASTM D938-15 / ASTM D3954-15 | Congealing point / drop melting point; 2–8 wt% addition |
| Colour masterbatch carrier | 21 CFR 178.3297 | ISO 15512:2019 | Moisture ≤ 0.1 wt%; melt temperature ≤165 °C |
| Polymer-modified bitumen | EN 14023:2010 | ASTM D36/D36M-14(2020) | Softening point; addition 3–7 wt% |
| Recycled polyolefin modification | REACH Annex XVII | ISO 180:2023 | Notched Izod impact; addition 2–8 wt% |
| Injection-moulded closures | FDA 21 CFR 177.1350 | Regulation (EU) No 10/2011; SML 12 mg/kg | VA monomer specific migration |
Post-consumer HDPE and PP regrind streams require a non-reactive impact modifier and high-flow processing aid that can be incorporated on a standard recycling compound line without separate compatibilization. LG EVA 19150 is fed at 2–8 wt% into the regrind stream on a twin-screw extruder with a 75 mm screw diameter and L/D 36:1, with barrel zones from 170 °C to 205 °C and a die-head pressure target below 120 bar. Notched Izod impact is measured under ISO 180:2023 or ASTM D256, tensile yield stress under ASTM D638-14, and melt flow rate under ISO 1133-1:2022 at 190 °C/2.16 kg for PE-rich streams. The EVA addition reduces stiffness and heat deflection temperature; therefore, the upper dosage is limited to 8 wt% for articles that must retain a modulus of ≥700 MPa under ISO 527-2:2012. Field experience on a 1,500 kN injection moulding machine with a 70 mm reciprocating screw shows that 5 wt% LG EVA 19150 can reduce peak injection pressure by 8–15 % in a drainage-chamber mould, depending on regrind melt-flow variability. The blend is incompatible with post-consumer streams containing PVC residues because hydrochloric acid released during processing can catalyze acid-catalyzed deacetylation of the vinyl acetate units, causing viscosity drift and surface defects. Regulatory compliance for non-food recycled articles is governed by REACH Annex XVII and, where applicable, RoHS Directive 2011/65/EU for restricted substances in electrical housings. Terminal product types include non-food storage bins, drainage chambers, cable reels, and automotive wheel-arch liners.
For injection-moulded cap liners and flexible closure gaskets, LG EVA 19150 is blended into LDPE or LLDPE at 10–30 wt% to impart softness, stress-crack resistance, and seal conformability without requiring a separate elastomer. The blend is processed on an injection moulding machine with a clamp force of 800–1,200 kN, a barrel profile from 160 °C to 195 °C, and a screw decompression hold of 3–5 mm to reduce drool from the high-MI phase. Shore A and Shore D hardness are measured under ISO 868:2003 on compression-moulded plaques; tensile elongation under ASTM D638-14; and environmental stress-cracking resistance under ASTM D1693-15 in 10 % Igepal CO-630 at 50 °C. Above 30 wt% EVA, heat resistance declines and cap-liner dimensional recovery may fall below the 85 % recovery required by cap manufacturer internal specifications; below 10 wt%, the sealing force on glass and PET finishes is insufficient for carbonated soft-drink closure systems. The grade is not recommended for hot-fill retort service above 110 °C because the low molecular weight fraction migrates under sustained steam pressure and reduces seal recovery. Compliance for food-contact closures is evaluated under FDA 21 CFR 177.1350 for ethylene-vinyl acetate copolymers, Regulation (EU) No 10/2011 for specific migration of vinyl acetate monomer with an SML of 12 mg/kg food, and USP <381> elastomeric closure tests where the liner is part of a parenteral packaging system. Published aging data for this grade in continuous hot-fill closure service remain limited; sealing performance after pasteurization at 85 °C must be validated on the target capping line. Terminal product types include PE cap liners, tamper-evident ring gaskets, and flexible dispensing-valve components.
Competitive LG EVA 19150 Ethylene Vinyl Acetate Copolymer prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
LG EVA 19150 is an ethylene-vinyl acetate random copolymer produced by LG Chem under CAS registry 24937-78-8, with a nominal vinyl acetate content of 19 wt% and a melt index of 15 g/10 min when determined under ASTM D1238 at 190 °C with a 2.16 kg load. The product is supplied as translucent pellets with a density of approximately 0.940 g/cm³ by ASTM D792, a Shore A hardness of approximately 92 under ISO 868, a tensile strength in the range of 13–14 MPa under ASTM D638, and a peak melting temperature near 84 °C under ISO 11357-3. These values are nominal characterizations rather than batch specification limits. The copolymer occupies a mid-range position in the producer’s EVA portfolio: the 19 wt% acetate content suppresses enough polyethylene crystallinity to improve flexibility and stress-crack resistance, while retaining greater stiffness and surface hardness than grades at 28 wt% vinyl acetate. The grade is used primarily in injection moulding, foam expansion, and compounding, where the combination of mid-range comonomer content and a moderate melt index allows fast cavity filling without the extreme melt temperature sensitivity seen in higher-vinyl-acetate materials.
The position of LG EVA 19150 in the vinyl acetate gradient is defined by crystallinity, polarity, and stiffening response. With 19 wt% acetate, the polymer retains a crystalline melting peak near 84 °C, whereas a 15 wt% vinyl acetate grade of similar melt index retains a higher melting point and harder surface. The increased acetate content in 19150 reduces long crystallizable ethylene sequences, lowering density and flexural modulus, while increasing the polar surface energy available for adhesion to polar substrates such as polyurethane injection intermediates and polar fillers. Compared with a 28 wt% vinyl acetate grade, 19150 has higher hardness, higher tensile strength, and lower surface tack, but less compatibility with high loadings of polar processing aids and lower ultimate low-temperature flexibility. The difference between these grades is not linear; the largest property changes occur as vinyl acetate content passes from about 18 wt% to 20 wt% because crystallite size distributions collapse through that range. For 19150, continuous service under load above 70 °C is not recommended unless the part is crosslinked or supported, because creep recovery deteriorates as the ambient temperature approaches the crystalline melting range. Published comparative data for direct tensile-property transitions across the exact LG Chem EVA portfolio are limited to producer technical bulletins; batch certification values should be used for specification limits.
On conventional hydraulic or toggle injection moulding machines with screw L/D ratios of 20:1 to 25:1 and compression ratios of 2.5:1 to 3.5:1, LG EVA 19150 is processed with rear barrel zones from 160 °C to 180 °C, center zones from 180 °C to 190 °C, and a nozzle temperature of 180 °C to 200 °C. Mould temperature is typically held at 20 °C to 35 °C. The melt index of 15 g/10 min permits injection velocities of 60 mm/s to 120 mm/s for wall sections below 4 mm; higher velocities can create jetting when the gate land length is less than 1.5 mm, while lower velocities cause visible flow marks in multi-cavity tools. Shot capacity should remain below 65% of the barrel inventory to prevent excessive residence time. For melt pressure at transfer between 60 bar and 100 bar, projected cavity area is multiplied by an estimated cavity pressure of 30 MPa to 45 MPa to calculate clamp force; most thin-wall tools with shot weights below 500 g operate on machines from 80 to 150 tonnes clamp force. If pellets have been cold-stored or exposed to relative humidity above 70%, drying at 60 °C to 70 °C for 2 h in a dehumidified hopper dryer is applied. Melt residence time above 200 °C should be limited to 15 min; prolonged high-temperature residence accelerates deacetylation and releases acetic acid, which corrodes unprotected mould steel and contributes to splay.
Compounding of LG EVA 19150 with calcium carbonate, talc, or colour concentrates is performed on co-rotating twin-screw extruders with L/D ratios of 40:1 or greater. The screw configuration typically includes a solids-conveying section, two high-shear kneading zones separated by a vent, and a low-shear discharge zone. In a filler-masterbatch formulation with 40 wt% calcium carbonate, barrel temperatures are set between 130 °C and 170 °C, and screw speed is maintained at 250 rpm to 350 rpm to keep melt temperature below 190 °C at the die. Under these conditions, the melt viscosity of 19150 is sufficiently low to wet filler surfaces but high enough to prevent excessive pressure generation in the mixing zones. Dispersion quality is monitored by pressure-rise testing through a 20 μm screen pack rather than by visual pellet inspection alone. Excessive shearing caused by severe back-conveying elements or screw speeds above 400 rpm can initiate local deacetylation even when the barrel setpoint is moderate; therefore, kneading-block angles are limited and melt-temperature probes are positioned at the exit of each mixing zone. Batch-to-batch melt index variation is generally narrow enough to maintain stable die pressure, but filler moisture changes often have a larger effect on surface roughness than resin lot variation.
For chemically blown injection moulding of low-density EVA foams, formulations based on LG EVA 19150 typically combine azodicarbonamide blowing agent with dicumyl peroxide crosslinking initiator. The processing conflict is defined by the decomposition kinetics of the two additives: azodicarbonamide gas liberation accelerates near 200 °C to 210 °C, whereas dicumyl peroxide has a half-life of approximately 1 min at 170 °C to 180 °C. Barrel zone settings for foam expansion are therefore held lower than in compact injection moulding, commonly 90 °C to 120 °C in the rear zones and 120 °C to 150 °C in the front zones, with the nozzle at 150 °C to 170 °C. Mould temperature is set between 20 °C and 45 °C. In this window, the 19 wt% vinyl acetate content supplies melt strength for cell nucleation, while the 15 g/10 min melt index keeps cavity-fill pressure low in multi-cavity sole tools. Blowing agent loadings of 0.5 phr to 1.5 phr and peroxide loadings of 0.4 phr to 0.8 phr are typical starting points, but final formulations depend on mould geometry and desired foam density. Compared with a 28 wt% vinyl acetate grade, 19150 produces a slightly firmer foam with higher compression set and reduced surface tack. Compared with a nominal 4 g/10 min flow grade, 19150 permits thinner walls and shorter fill times but requires more precise nozzle shutoff to limit drool after plastication.
The replacement of low-density polyethylene with LG EVA 19150 in thin-wall sealing layers shifts the sealing-temperature window downward and increases adhesion to polar substrates. LDPE typically initiates heat-seal formation at temperatures above 100 °C, whereas the vinyl acetate groups in 19150 allow seal initiation to occur at lower temperatures because chain mobility and polar wetting increase. The reduction in crystalline melting point also means that process control at the die must compensate for lower melt strength: neck-in and draw resonance can be more pronounced on cast-film lines with a chill roll gap below 0.5 mm unless lip lands are reduced or air-knife positioning is adjusted. For thicker extruded profiles, the grade’s 15 g/10 min melt index allows stable output on single-screw extruders with L/D ratios of 24:1 to 30:1, but barrel zone temperatures should be set 20 °C to 30 °C lower than typical LDPE profiles to prevent melt temperature overshoot. The resulting sealant or gasket layer has lower modulus and greater flexibility at low temperature, but the operational boundary is heat resistance: continuous exposure above 70 °C without crosslinking can cause deformation and seal failure earlier than LDPE in the same part design.
In hot-melt adhesive compounding, LG EVA 19150 is used as a viscosity modifier and adhesion promoter in formulations containing tackifying resins, waxes, and antioxidants. The 19 wt% vinyl acetate content provides polar interaction with metals, coated papers, and polyvinyl chloride, while the 15 g/10 min melt index allows lower application viscosity than low-flow EVA grades. Mixing is carried out in a temperature-controlled sigma-blade or vertical intensive mixer at 140 °C to 170 °C; the resin pellets are added after the tackifier and oil have melted to prevent localized overheating. Thermal stabilizers are required to limit deacetylation during prolonged pot hold times above 160 °C. Compared with an EVA grade with a melt index of 150 g/10 min, 19150 yields higher cohesive strength and longer open time, but increases application viscosity; compared with a 28 wt% vinyl acetate grade, it yields lower adhesion to highly polar surfaces such as aluminium foil but better resistance to creep in warm environments.
Relative to ethylene-ethyl acrylate and ethylene-butyl acrylate copolymers of similar comonomer content, EVA 19150 offers higher stiffness at ambient temperature and greater scuff resistance, but lower thermal stability because the acetate group undergoes deacetylation at elevated processing temperatures. Ethylene-butyl acrylate copolymers remain more flexible at low temperature and are often selected when low-temperature impact below -40 °C is required. The acrylic and butyl acrylate comonomers do not release acetic acid upon degradation, so they are favoured when extended high-temperature processing or hot-water contact is expected. These differences are relevant in sealant and footwear applications where melt stability and mould corrosion are more critical than initial material cost.
Regulatory evaluation of LG EVA 19150 depends on the finished article and jurisdiction. Ethylene-vinyl acetate copolymers intended for food-contact applications may be evaluated under FDA 21 CFR 177.1350, provided the final article meets the specified extractive limitations for the intended food type and use temperature. Because additive packages and processing aids affect final extractives, compliance cannot be assumed from resin composition alone; a finished-article extraction study under the relevant conditions is required. Under European Union requirements, the resin supplier’s safety data sheet and REACH registration status should be confirmed for the specific commercial lot. RoHS compliance is generally assessed for homogeneous materials under Directive 2011/65/EU; EVA homopolymer does not inherently contain lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above common restriction limits, but filler or colour masterbatches must be verified separately. Process safety boundaries include avoiding melt temperatures above 220 °C for extended periods and avoiding contamination with strong acids or oxidizing agents that accelerate deacetylation. Scrap recovery is technically feasible at up to 20 wt% in compact injection moulding when the reclaimed material is dry and free of degraded material, but higher addition levels can increase viscosity variation and surface defect rates. This product is not designed for long-term implantable medical use or for continuous load-bearing service above 70 °C without crosslinking.
