| HS Code | 248033 |
| Va Content | 19% |
| Melt Index | 150 g/10 min (190°C, 2.16 kg) |
| Density | 0.94 g/cm³ |
| Melting Point | 80°C |
| Vicat Softening Point | 64°C |
| Hardness Shore A | 80 |
| Tensile Strength | 6.0 MPa |
| Elongation At Break | 700% |
| Brittleness Temperature | -70°C |
| Glass Transition Temperature | -30°C |
| Appearance | White translucent pellets |
As an accredited LG EVA 19150 EVA Copolymer Resin,19% VA,150 MI,Adhesive Grade factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | LG EVA 19150 resin is supplied in 25 kg PE-lined paper bags, 20 bags per pallet (500 kg), shrink-wrapped for safe handling. |
| Container Loading (20′ FCL) | LG EVA 19150 resin loaded as 25 kg bags on pallets, approximately 20 metric tons per 20′ FCL, shrink-wrapped for safe transport. |
| Shipping | This EVA copolymer resin ships as free-flowing pellets in multi-wall paper bags (typically 25 kg) or jumbo bags, palletized and stretch-wrapped. Store in a cool, dry area away from heat and sunlight. Not regulated as dangerous goods for transport, but protect bags from mechanical damage and humidity. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly closed to prevent moisture absorption and contamination. Maintain temperatures below 30°C (86°F). Avoid contact with oxidizing agents. Protect packaging from physical damage. Proper storage preserves resin quality and ensures safe handling. |
| Shelf Life | Shelf life is typically 12 months when stored in a cool, dry place, away from heat, sunlight, and moisture. |
LG EVA 19150 is an ethylene-vinyl acetate copolymer with a vinyl acetate content of 19% and a melt index of 150 g/10 min determined per ASTM D1238 at 190°C/2.16 kg. In case- and carton-sealing hot-melt formulations, the resin is compounded at 30–40 wt% with 30–40 wt% of a hydrogenated C5 or C9 hydrocarbon tackifier, 15–25 wt% of a paraffin or microcrystalline wax, and 0.3–0.8 phr of a hindered phenolic antioxidant. The high melt index is used to depress finished adhesive viscosity on high-speed application wheels and slot-die heads; final formulation viscosity must be verified by rotational rheometry under ISO 3219 since viscosity response changes with tackifier polarity and wax recrystallization. Application temperatures are commonly held between 160°C and 180°C in heated hoses and metered gear pumps; residence time above 200°C must be minimized because vinyl acetate segments release acetic acid and corrode carbon steel. Indirect food packaging uses are governed by 21 CFR 175.105, and the base copolymer falls within 21 CFR 177.1350 under the specified extractive limits. Terminal products include corrugated case sealing, tray erecting, and carton closing on lines running above 120 cases/min.
| Application | Standard/Method | Measured Property |
|---|---|---|
| Hot-melt packaging adhesives | 21 CFR 175.105 / 177.1350 | Indirect food-contact suitability |
| Hot-melt packaging adhesives | ISO 3219 | Final formulation viscosity |
| Perfect binding | REACH / RoHS | Substance and heavy metal screening |
| Pressure-sensitive adhesives | ISO 3219 | Melt viscosity stability after shear heating |
| Edgebanding | EN 204/D3 | Woodworking bond durability classification |
| Automotive interior lamination | VDA 278:2011 | VOC and FOG emissions |
| Wax blends | ASTM D938 / D721 / D1321 | Congealing point, oil content, penetration |
In perfect-binding lines that exceed 12,000 cycles/hr, LG EVA 19150 is used as the high-flow backbone in spine and side glue formulations rather than as a one-component adhesive. A typical perfect-binding formulation contains 20–30 wt% EVA 19150, 35–45 wt% rosin ester tackifier, 15–25 wt% paraffin wax, and 0.3–0.8 wt% antioxidant; the high melt index allows the side-glue station to apply a thinner, consistent film without stringing at wheel speeds above 40 m/min. Premelt tank temperature is controlled at 140–160°C, with transfer hose temperatures set 5–10°C above reservoir temperature to prevent wax solidification in dead zones. Open time on coated signatures is typically 3–6 seconds, and set time must be shorter than 2 seconds before cover nipping; excessive wax fraction can produce cold blocking in stacked finished books, which is evaluated by blocking resistance tests under 50°C and 0.5 psi for 24 h. Regulatory acceptability in EU markets is assessed under REACH and the RoHS Directive for heavy metals; residual vinyl acetate monomer content is below standard headspace GC-MS limits. Terminal applications include thread-sewn books, PUR-EVA hybrid perfect bindings for directory printing, and paperback cover-section bonding.
When LG EVA 19150 is pre-compounded with styrene-isoprene-styrene block copolymers, the melt index of 150 g/10 min lowers blend viscosity and improves slot-die coatability at coating speeds above 150 m/min, but the polar vinyl acetate segments are only partially compatible with the isoprene mid-block. Published technical data for this specific resin in PSA formulations are limited; however, the same class of EVA modifiers is typically added at 5–15 wt% relative to SIS content, with higher additions producing phase separation, loss of loop tack, and hot-melt gel particles on the die lip. The diluent system includes a hydrogenated rosin acid or aliphatic tackifier at 50–60 wt% and a white mineral oil or naphthenic process oil at 15–25 wt%; EVA 19150 enters the twin-screw compounding step at 150–170°C before pelletizing and later coating onto siliconized release liner. Viscosity at 175°C is monitored by ISO 3219 because the high-flow EVA can mask shear-induced SIS degradation; a viscosity decline greater than 10% from the target curve indicates chain scission or antioxidant depletion. Industrial tape applications follow REACH and RoHS; food-label applications require 21 CFR 175.125 or 21 CFR 175.105 depending on construction. Terminal products include splicing tapes, carton-sealing PSA tapes, protective films for polystyrene sheet, and repositionable labels where initial tack is less critical than clean peel.
In furniture edgebanding, LG EVA 19150 is formulated at 30–35 wt% with 25–30 wt% hydrocarbon resin, 10–20 wt% calcium carbonate filler, 15–20 wt% paraffin wax, and 0.5–1.0 wt% antioxidant. The filler raises green strength but reduces flow; the 150 MI grade compensates for filler viscosity build and permits coat weights of 180–250 g/m² on polyester or PVC edgebanding. Conventional edgebanders apply the adhesive at 180–200°C, with preheat roll surface temperature at 150–170°C and nip pressure set between 0.3 MPa and 0.6 MPa; lower nip pressure results in edge lift after conditioning at 23°C/50% RH for 24 h. Bond performance for interior woodworking is tested by EN 204/D3 or ASTM D3164 lap-shear; the high melt index lowers melt viscosity but can reduce heat resistance compared with 25% or 28% VA grades, so edgebanding formulations often add a secondary low-MI EVA or polyolefin wax to raise softening point. Indoor air quality compliance for furniture used in educational or healthcare settings is screened by ISO 16000-6. Terminal products include melamine-faced chipboard edges, office desking, store fixtures, and kitchen cabinet doors.
Laminated door-panel constructions that must pass 90°C heat ageing without adhesive bleed-through use LG EVA 19150 as the carrier resin in scatter-coating hot-melt films and webs. A typical web formulation contains 30–45 wt% EVA 19150, 25–35 wt% hydrocarbon tackifier, 10–20 wt% amorphous poly-alpha-olefin, and 0.5–1.0 wt% antioxidant/UV stabilizer; the 150 MI flow permits the molten blend to penetrate nonwoven scrim without full saturation, preserving the permeable acoustic layer. Scatter coating is carried out on release paper at 120–140°C, followed by infrared re-activation and vacuum forming onto polypropylene foam at 0.05–0.09 MPa vacuum. The vinyl acetate content of 19% provides adhesion to polar polyolefin skins, but the grade should not be used in direct contact with unsealed PVC skins because plasticizer migration can over-plasticize the adhesive and reduce heat resistance. Interior air quality requirements are defined by VDA 278:2011 for VOC and FOG emissions, DIN 75201:2011 for windshield fogging, and OEM-specific limits for condensable emissions; formulations containing EVA 19150 are typically screened at 90°C for 30 min under VDA 278. Published production-line data for this specific grade in automotive interior laminating is limited; validation trials on twin-screw extruders with L/D 40:1 and low-shear mixing sections are required before serial production. Terminal applications include door panel wraps, instrument panel topper laminates, seat back boards, and parcel shelf coverings.
In low-shear heated mix tanks operating at 120–140°C, wax compounders add LG EVA 19150 at 2–10 wt% to paraffin and microcrystalline wax blends that require low-temperature flexibility and improved adhesion to cellulose substrates. The 150 MI grade disperses within 30–45 minutes under nitrogen blanket without the unmelted pellets common with low-MI EVA carriers. The vinyl acetate content of 19% raises the polarity of the wax melt, reducing contact angle on corrugated board and improving water-spot resistance; however, exceeding 12 wt% EVA can produce a blue haze in thin films and increase blocking at 40°C. Physical property control is based on congealing point per ASTM D938, oil content per ASTM D721, and penetration per ASTM D1321; a congealing point shift of more than 3°C indicates incomplete dispersion or phase separation. Compliance for wax coatings used in food packaging requires 21 CFR 176.170 or 21 CFR 176.180 for paper and paperboard components; industrial wax blends are evaluated under REACH. Terminal products include corrugated box coatings, candle laminates, investment casting pattern wax formulations, and surface protection waxes.
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LG EVA 19150 EVA Copolymer Resin, an adhesive-grade ethylene-vinyl acetate copolymer, is specified with a vinyl acetate content of 19% and a nominal melt index of 150 g/10 min when measured at 190°C under a 2.16 kg load according to ASTM D1238 or ISO 1133-1. The resin is supplied as pellets and is intended for hot-melt adhesive compounding, solvent-free coating, wax blending, and polymer modification. A representative density for this VA and melt index class is 0.94 g/cm³ by ASTM D1505 or ISO 1183-1. The grade designation 19150 is conventionally read as 19% VA and 150 melt index; this distinguishes the product from lower-MI grades of identical VA content, which provide greater cohesive strength at the expense of higher melt viscosity.
The 150 g/10 min melt flow rate indicates a low-molecular-weight ethylene-vinyl acetate fraction relative to lower-MI EVA grades. Under ASTM D1238 or ISO 1133-1, extrudate weight is collected over 10 min; the high value implies that melt viscosity remains low enough for low-temperature application and for high-speed slot-die, roller, and spiral-spray coating heads. In heated melt tanks and gear-pump delivery systems, the resin permits lower preheat zones, commonly 120–160°C, compared with 25 g/10 min EVA grades that may require 150–180°C for comparable pumping pressure. Neat resin Brookfield viscosity at 180°C is characteristically lower than that of a 25 g/10 min grade; direct measurements should be generated on the finished formulation because tackifier oils and waxes shift the viscosity response under ASTM D3236.
Thermal degradation limits are important in continuous hot-melt lines. EVA deacetylation accelerates with temperature; therefore melt residence time at 190°C should be kept below 2 h, and melt temperatures above 230°C should be avoided unless a stabilizer package has been validated by oven-aging protocols. On a twin-screw compounding extruder with an L/D ratio of 40:1, co-rotating screws, and barrel temperatures of 100–150°C, the high-MI resin can be dry-fed with tackifier and wax without nitrogen blanketing, provided the screw design minimizes low-velocity melt pools. Specific mechanical energy input is lower than for grades with 25 g/10 min MI because the low-molecular-weight resin reduces viscous dissipation. However, the low viscosity also reduces self-wiping and localized shear heating; screw configurations with mixing elements are specified to ensure homogeneous tackifier dispersion.
Packaging lines using heated slot-die coaters with die gaps of 0.2–0.5 mm and line speeds above 50 m/min demand low-shear melt delivery and rapid solidification. In such configurations, LG EVA 19150 is typically compounded at 30–40 wt% with hydrocarbon or rosin ester tackifiers and paraffin or microcrystalline waxes. The high melt index allows the adhesive to flow through the die at lower pump pressure, reducing the risk of adhesive stringing and edge overcoat on board stock. After application, the 19% VA content provides enough polar interaction to wet clay-coated carton surfaces without the aggressive adhesion of 28% VA grades, which can create fiber tear on recycled corrugate. Open time and set time are controlled primarily by wax crystallization; the EVA phase contributes cohesive strength and heat resistance. Typical hot-melt formulations are characterized by ring-and-ball softening point 90–110°C and Brookfield viscosity 1000–3000 mPa·s at 180°C under ASTM D3236. Adhesion to untreated polyethylene and polypropylene is governed more by tackifier selection than by VA content in this grade; corona or flame treatment may still be required for nonpolar polyolefin surfaces.
The presence of 19% vinyl acetate along the polyethylene backbone disrupts crystalline sequence length. Differential scanning calorimetry by ASTM D3418 typically locates the melting peak of EVA with 19% VA between 80°C and 85°C, compared with 95–100°C for 9% VA and 70–75°C for 28% VA. This intermediate crystallinity reduces the heat-seal initiation temperature relative to lower-VA grades and improves low-flexure durability in adhesive films. The VA ester groups increase the cohesion energy and interaction with surface hydroxyl and carbonyl groups on paper, wood, polyester, and aluminum; however, the 150 g/10 min melt index reduces ultimate tensile strength relative to a lower-MI, same-VA grade.
Tensile properties are determined under ISO 527-2 or ASTM D638. For this VA level, published data for this specific grade are limited; industry experience with equivalent 19% VA EVA copolymers indicates elongation at break commonly exceeds 600%, with tensile strength below 10 MPa for high-MI grades. These values are not substitutes for supplier lot data but can serve as preliminary formulation boundary conditions.
| Property | Typical value or range | Test method |
|---|---|---|
| Vinyl acetate content | 19% | ASTM D5594 / internal FTIR |
| Melt index | 150 g/10 min at 190°C, 2.16 kg | ASTM D1238, ISO 1133-1 |
| Density | 0.94 g/cm³ | ASTM D1505, ISO 1183-1 |
| Melting peak | 80–85°C | ASTM D3418 |
| Elongation at break | Above 600% for equivalent high-MI grades | ISO 527-2 / ASTM D638 |
Compared with a 9% VA, melt-index-matched grade, LG EVA 19150 offers lower crystallinity and broader solubility in polar tackifiers but a reduced upper service temperature. Compared with a 25 g/10 min, 19% VA grade, the 150 g/10 min melt index reduces the minimum die temperature and improves substrate wetting on porous board; however, the low molecular weight also lowers peel strength and creep resistance under sustained load. The differences become measurable in static shear and peel modes: ASTM D1876 T-peel and ASTM D3654 shear adhesion failure temperature tests are used to rank formulations. Published data for this specific configuration is limited; formulators should run a design-of-experiments over tackifier loading because tackifier polarity interacts with VA content.
Although the 150 g/10 min melt index improves throughput, it is not the preferred choice for all adhesive applications. Melt index responds inversely to average molecular weight; lower-MI EVA grades have longer chains and produce more entanglements, which increase melt viscosity but also improve tensile creep resistance and hot bond strength. In formulations for automotive interior cockpits or structural packaging tapes where sustained static shear at 60–80°C is required, a 25–43 g/10 min EVA may be specified instead of the 150 g/10 min grade. The 19% VA content remains useful for adhesion, but the molecular-weight deficit of the 150 MI grade lowers the shear adhesion failure temperature by several degrees Celsius in otherwise identical formulations.
Conversely, for high-speed fiber-based packaging and bookbinding where pump pressure, line speed, and open time are dominant, the high-MI grade is specified. The lower melt viscosity permits use of narrow slot dies and lower adhesive application temperatures, reducing thermal degradation of heat-sensitive tackifiers. The viscosity reduction can be quantified as a shift in the power-law relationship between shear rate and shear stress; a 150 g/10 min EVA exhibits lower consistency index in a Carreau-Yasuda fit than a 25 g/10 min grade, although the shear-thinning exponent remains similar for linear EVA chains.
| Parameter | LG EVA 19150 | Typical 9% VA, 150 MI EVA | Typical 28% VA, 43 MI EVA |
|---|---|---|---|
| Vinyl acetate content | 19% | 9% | 28% |
| Melt index | 150 g/10 min | 150 g/10 min | 43 g/10 min |
| Melting peak by ASTM D3418 | 80–85°C | 95–100°C | 70–75°C |
| Crystallinity / toughness | Intermediate | High | Low |
| Melt viscosity at 190°C | Low | Low | Higher |
| Adhesion to polar surfaces | Intermediate | Lower | Higher |
| Upper service temperature | Intermediate | Higher | Lower |
Compatibility with tackifiers and waxes is determined by cloud point and melt clarity. At 19% VA, the resin generally forms a single-phase melt with C5/C9 aliphatic-aromatic hydrocarbon tackifiers and rosin ester tackifiers; cloud point may be measured by ASTM D6116 or an internal hot-stage method. Aliphatic waxes with high paraffin content may reduce clarity; microcrystalline waxes and Fischer-Tropsch waxes are typically used to maintain heat resistance without severe clouding. The high melt index has no direct effect on solubility parameter, but it can mask early-stage phase separation by reducing viscosity to the point that cloudiness is not visually evident during mixing. Therefore, trained panel or optical turbidity measurements at use temperature are recommended. Acid- or base-catalyzed hydrolysis of the acetate group can occur; strongly alkaline additives should be evaluated in accelerated aging before production use.
Starting-point hot-melt formulation for carton sealing can be set at 35 wt% EVA, 40 wt% hydrocarbon tackifier, and 25 wt% paraffin/microcrystalline wax blend. Mixing is performed in a heated sigma-blade mixer or vertical heated kettle at 150–170°C under nitrogen. Viscosity is checked after 30 min to confirm full dissolution; the Brookfield value is adjusted by changing wax content, not by raising temperature beyond the degradation limit. For spiral-spray and meltblown filament coating, the low viscosity allows air-assisted application at lower reservoir temperatures. Nozzle temperatures, air pressure, and open time are set according to substrate insulation and line speed. The high MI reduces stringing but may require higher wax content to build cohesive strength and prevent cold flow in stack storage.
The finished adhesive, not the resin alone, is the regulatory object in food-contact and pharmaceutical packaging. For indirect food-additive applications, formulations containing EVA may be evaluated under FDA 21 CFR 175.105 for adhesives and FDA 21 CFR 177.1350 for ethylene-vinyl acetate copolymers in contact with food, subject to the migration limits and end-use restrictions in those sections. The manufacturer’s lot certificate should state REACH registration status and confirm that the product does not contain substances of very high concern above the threshold in Article 57 of EC 1907/2006. EU RoHS 2011/65/EU Annex II heavy-metal restrictions are generally not triggered for the neat resin, but flame-retardant or pigmented finished formulations require separate assessments. Occupational exposure limits for acetic acid and resin dust are supplied in the safety data sheet; local exhaust ventilation should be maintained during high-temperature processing.
Storage in sealed containers below 40°C and protected from direct sunlight is standard practice for EVA pellets. Moisture regain is low; drying is seldom required unless surface condensation is observed, in which case 60–70°C for 2–3 h in a desiccant hopper dryer is sufficient for extrusion and hot-melt compounding. Inventory should follow first-in-first-out because long storage at elevated ambient temperatures can promote slow oxidation, visible as yellowing or a change in melt index.
