| HS Code | 917027 |
| Appearance | Milky white liquid |
| Solid Content | 55% |
| Viscosity Brookfield 20 Rpm 23 C | 3500-6500 mPa·s |
| Ph | 5.0-6.0 |
| Density | 1.06 g/cm³ |
| Minimum Film Forming Temperature | 0°C |
| Glass Transition Temperature | -10°C |
| Particle Size | 0.5-2.0 μm |
| Surfactant System | Non-ionic/anionic |
| Residual Vinyl Acetate Monomer | <0.5% |
| Mechanical Stability | Excellent |
| Freeze Thaw Stability | Stable when protected from frost |
As an accredited VINAVIL EVA 04 VAE Emulsion factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 200 kg drums or 1000 kg IBC containers, with sealed inner lining to preserve emulsion stability and prevent contamination. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): VINAVIL EVA 04 VAE Emulsion is packed in sealed drums, safely palletized and loaded into a 20-foot container. |
| Shipping | VINAVIL EVA 04 VAE Emulsion is shipped in lined drums, IBC totes, or bulk tankers. Protect from freezing and excessive heat; ideal transport temperature 5–35°C. Ensure secure containment, avoid contamination, and keep upright. Not classified as dangerous goods under standard regulations. Shelf life typically 6 months from production. |
| Storage | Store VINAVIL EVA 04 VAE Emulsion in original, tightly sealed containers in a cool, dry, well-ventilated area, avoiding direct sunlight and extreme heat. Maintain temperatures between 5°C and 35°C; do not allow freezing. Keep away from ignition sources. Stir gently before use to ensure uniformity. Use within recommended shelf life to maintain performance. |
| Shelf Life | Shelf life is typically 12 months from production date when stored in sealed containers at 5–35°C, protected from frost and direct sunlight. |
Roll-to-roll laminating lines running water-based adhesives at 60–120 m/min require a polymer dispersion that forms a coalesced film at ambient nip temperature and retains sufficient tack for paper-to-film registration. VINAVIL EVA 04 VAE emulsion can be formulated for this application by diluting the as-supplied dispersion with deionized water to a flow cup viscosity of 20–35 s on a DIN 4 mm cup at 25°C. A typical gravure laminating adhesive contains 100 wet parts VINAVIL EVA 04, 5–15 wet parts water, 0.1–0.3 wet parts mineral oil defoamer, and 0.2–0.5 wet parts of a non-ionic wetting agent. Ammonia solution is added only when the pH falls below 6.5; the target working pH is 6.5–7.5 to stabilize viscosity and protect steel gravure cylinders. For film-to-paper laminates, the dry coat weight is controlled to 2.0–6.0 g/m² by a gravure cylinder with 120–160 lines/cm and cell volume 8–12 cm³/m². The web passes through a three-zone hot-air tunnel at 70°C/85°C/90°C for 3–8 s, then enters a nip with line pressure 0.3–0.6 MPa. Under these conditions the VAE film fuses without exceeding 30 g/L VOC. Compliance for indirect food packaging uses FDA 21 CFR 175.105 when the adhesive is separated from the food by a functional barrier. Paper-based pouches and sachets intended for dry foods often require additional verification under EU 10/2011; published data for this specific configuration is limited, so a migration study on the finished laminate is mandatory. The finished constructions include paper/polyethylene, paper/metallized OPP, and paper/aluminium foil laminates used in dry mix pouches, sugar sachets, and bread bags. Production lines should avoid cationic surfactants and aluminium chloride-based coagulants because they cause coagulation and gravure streaking. At relative humidity above 70%, paper substrates should be pre-conditioned to 8–10% moisture to prevent blocking.
The wet scrub classification of a matt interior wall paint is established by ISO 11998 and EN 13300, in which film thickness loss is measured after 200 scrub cycles using a non-woven abrasive pad loaded with 0.5 kg and a standardized scrub medium. In a matt interior wall paint formulated with VINAVIL EVA 04 VAE emulsion as the sole binder, the pigment volume concentration is normally set between 20% and 82%; high-scrub formulations are maintained at 18–22% PVC to avoid binder starvation. A typical 100 kg high-scrub batch at 20% PVC contains 18–22 kg wet EVA 04 dispersion, 35–45 kg water, 10–14 kg titanium dioxide, 18–25 kg coarse calcium carbonate, 0.5–0.8 kg cellulosic thickener, 0.2–0.4 kg dispersant, 0.1–0.2 kg neutralizer, and 0.1–0.3 kg defoamer. The pigment and filler are dispersed under a Cowles blade at 18–25 m/s tip speed for 15–20 min, then the VAE dispersion is added during letdown at 5–8 m/s to minimize shear-induced coagulation. The final pH is adjusted to 8.5–9.0, and the paint is filtered through a 100 µm sieve. The formulated VOC content remains below the 30 g/L limit in EU Directive 2004/42/EC category A/a because the coalescing agent demand is low or zero. Wet film application at 200 µm thickness by roller or airless spray at 180–220 bar yields a dry film of 80–100 µm. The dried film is tested for wet scrub resistance according to ISO 11998; formulations with equivalent VAE binders of 55% solids typically fall within loss values from 5 µm to 150 µm, depending on filler quality and coalescence. The finished products include interior wall paints, primer-sealers, and ceiling paints. The binder is not designed for continuous exterior water immersion; exterior masonry applications require a hydrophobic topcoat because the ethylene-modified polymer film can exhibit water whitening under prolonged film contact with water.
After thin-set tile adhesive is mixed at a 0.20–0.25 water-to-dry-mortar ratio, the open time, vertical slip, and tensile adhesion are governed by the polymer film formed during cement hydration. VINAVIL EVA 04 VAE emulsion can be used as a polymer modifier in a two-component cementitious tile adhesive by diluting 1 part emulsion with 1 part water and adding 22–26 parts of this liquid to 100 parts of dry mortar. The dry mortar typically contains 35–45 wt% CEM I 52.5 R Portland cement, 55–65 wt% silica sand with a particle range 0.1–0.5 mm, 0.3–0.5 wt% methylhydroxyethyl cellulose, and 0.1–0.2 wt% polycarboxylate superplasticizer. Mixing is carried out in a forced-action paddle mixer at 300–500 rpm for 90–120 s, followed by a 5 min rest and a 30 s remix. The polymer addition reduces the elastic modulus of the cured mortar and improves adhesion to vitrified tile and impervious porcelain. Performance is assessed under EN 12004 and ISO 13007; for classification as C1, the tensile adhesion strength after water immersion must be at least 0.5 N/mm², and for C2, the same value must be at least 1.0 N/mm² when tested according to EN 1348. Open time at 23°C and 50% RH is normally 20–30 min with the VAE-modified formulation, provided the tile is laid before a surface skin forms. The finished goods include cementitious tile adhesives for ceramic, mosaic, and medium-format porcelain tiles in kitchens and bathrooms. The operational boundary is +5°C to +35°C during application and curing. Gypsum-based substrates require surface priming because continuous water retained by the cementitious layer can soften the interface. The emulsion should not be combined with high-alumina cement because rapid setting can trap water and reduce polymer coalescence.
In carded nonwoven production at 12–22 gsm, saturation bonding with VINAVIL EVA 04 VAE emulsion requires controlled dilution and drying to prevent surface migration that creates two-sided stiffness. Carded staple fibers of PET or viscose are formed into a web and bonded by impregnation in a diluted VAE bath. The as-supplied emulsion is diluted with deionized water to a solids content of 10–20 wt% to control binder add-on. A typical bonding bath contains 100 wet parts water, 20–40 wet parts VINAVIL EVA 04, and 0.5–1.0 wet part non-ionic wetting agent. If wet strength is required, a compatible external crosslinker is added after jar compatibility testing, because published data for this specific configuration is limited. The web passes through a two-roller padding nip at 0.2–0.5 MPa and then through a hot-air oven at 130–150°C for 40–90 s. The dry binder add-on is controlled to 8–20 wt% of the finished web. Tensile strength is measured by ISO 9073-3; wet strength retention is assessed after 1 h water immersion at 23°C by comparing tensile strength under the same method, because no separate wet tensile method is given in the base standard. The finished products include hygiene acquisition layers, tea bag filter paper, wiping cloths, and laminate carrier webs. The binder is anionic; therefore, the bath must not contain cationic quaternary ammonium softeners because immediate coagulation will occur. At liquor pickup above 300%, the web can become stiff and the binder may migrate to the surface during drying, causing two-sidedness. Production lines with infrared predrying at 80–100°C before the hot-air oven reduce migration and improve tensile uniformity.
Paperboard converters running blade coaters at 400–800 m/min cannot tolerate binder films that crack along creases at freezer temperatures. VINAVIL EVA 04 VAE emulsion supplies ethylene-modified flexibility without external dibutyl phthalate or benzoate plasticizers, which are subject to migration restrictions in food-contact paperboard. In a blade coating for folding carton board, a typical coating color at 60–65% solids contains 12–18 dry parts VINAVIL EVA 04 per 100 dry parts of coating pigment, 0.1–0.3 dry parts dispersant, 0.2–0.5 dry parts calcium stearate lubricant, and 80–88 dry parts of a pigment blend containing kaolin and ground calcium carbonate at 50/50 to 70/30 ratio. The coating is applied with a bent blade at 0.5–1.5 bar blade pressure to a coat weight of 8–15 g/m² per side, then dried in an airfoil dryer at 110–140°C. The dry coating is calendered at 100–200 kN/m line load and 60–80°C roll temperature to achieve Parker PrintSurf smoothness 1.0–2.5 µm at 1 MPa according to ISO 8791-4. The VAE binder contributes to IGT pick resistance; typical values for equivalent VAE-bound coatings fall between 1.0 m/s and 3.5 m/s in an IGT pick test with standard oil. Compliance for food cartons requires conformity with EU 1935/2004 and, where relevant, 21 CFR 176.170 for paper and paperboard components in contact with aqueous and fatty foods. The finished products include folding cartons for frozen foods, pizza boxes with mineral oil barrier coatings, and dry beverage multipack carriers. The formulation is not suitable for direct contact with high-fat liquid foods without a functional barrier; specific migration testing is required for the finished board.
Because water whitening and creep resistance determine long-term durability in interior wood assembly, adhesive formulators select VAE dispersions with ethylene content that balances adhesion to cellulosic substrates and low-temperature film formation. VINAVIL EVA 04 VAE emulsion can be compounded into a one-part wood assembly adhesive by adding 5–8 wt% of a polyvinyl alcohol solution at 8–12% solids in water to the as-supplied dispersion, plus 0.2–0.5 wt% defoamer and 1–3 wt% fumed silica for thixotropy. The mixed adhesive is applied at 120–180 g/m² by roller or extruded bead to a conditioned wood surface with moisture content 8–12%. Assembly time is 5–15 min, and clamping pressure is 0.3–0.8 MPa for 30–60 min at 20–30°C. The bond is tested after 7 days conditioning by EN 205 for load-bearing wood joints; tensile shear strength on beech at 12% moisture typically exceeds 10 N/mm² for VAE-based PVAc blends, but published data for this specific configuration is limited. The finished products include interior door frames, cabinet frames, edge-glued panels, and picture frame corner joints. The cured film remains reversibly thermoplastic; continuous load-bearing structural applications above 50°C are outside the operational boundary. The dispersion is anionic and must not be mixed with cationic amine-based accelerators, which cause immediate destabilization. At relative humidity above 60%, the wood moisture content should be confirmed before adhesive application to prevent delayed bond failure from entrapped water.
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Synthesized through high-pressure aqueous emulsion polymerization of vinyl acetate and ethylene, VINAVIL EVA 04 is a vinyl acetate–ethylene (VAE) copolymer dispersion produced by Vinavil S.p.A. The product is supplied as a white anionic/nonionic aqueous dispersion with a non-volatile content determined according to ISO 3251 in the range of 54–56% by mass and a Brookfield RVT viscosity at 23°C of 2,000–4,000 mPa·s when measured per ISO 2555. In manufacturing environments, EVA 04 is metered into adhesive, coating, and cementitious formulations where low coalescent demand, permanent film flexibility, and adhesion to low-energy substrates are required. Unlike plasticized poly(vinyl acetate) homopolymer dispersions, this grade derives low-temperature performance from ethylene incorporation, which reduces the amorphous-phase glass transition temperature to approximately −5°C to +5°C (as determined by differential scanning calorimetry under ISO 16805) without the migration or volatile organic compound load associated with dibutyl phthalate or benzoate plasticizers.
The ethylene sequence distribution along the copolymer backbone disrupts vinyl acetate crystallinity, lowering the minimum film-forming temperature (MFFT) to ≤2°C when measured by ISO 2115. This permits coalescence at application temperatures where homopolymer PVAc films remain cracked and discontinuous. In 180° T-peel testing under ASTM D1876, EVA 04 films typically yield 2.0–4.0 N/mm on untreated low-density polyethylene and 3.0–5.0 N/mm on aluminum foil, while unplasticized PVAc homopolymer films typically yield <0.5 N/mm on the same substrates. Film elongation at break, evaluated per ISO 527-3, typically falls between 300% and 600% at 23°C for dried films, whereas homopolymer PVAc films exhibit 5–15% elongation. The absence of migrating plasticizer maintains adhesion after thermal aging at 70°C for 14 days per ISO 188, a condition under which dibutyl phthalate-plasticized PVAc systems lose cohesive strength and peel resistance.
Without external coalescing solvents, film formation occurs above the MFFT through particle deformation and interdiffusion; the resulting film clarity and tensile properties stabilize after 7 days at 23°C and 50% relative humidity. The following typical batch data apply to EVA 04 as supplied:
| Parameter | Test method | Typical value |
|---|---|---|
| Non-volatile content | ISO 3251 | 54–56% by mass |
| pH | ISO 976 | 4.0–6.0 |
| Brookfield RVT viscosity at 23°C, 20 rpm | ISO 2555 | 2,000–4,000 mPa·s |
| Minimum film-forming temperature | ISO 2115 | ≤2°C |
| Glass transition temperature (DSC) | ISO 16805 | −5 to +5°C |
| Density at 20°C | ISO 2811 | 1.05–1.10 g/cm³ |
Batch-to-batch viscosity variation within the listed range can alter roller coater pickup by ±10% on engraved cylinders with 120–160 lines per inch; viscosity adjustment is performed with demineralized water or 2% hydroxyethyl cellulose solution at 25°C.
Industrial roller coating lines running EVA 04 at 20–80 g/m² wet coat weight typically require infrared or forced-air drying at 60–80°C for 30–90 seconds to reach residual moisture below 2%. At wet film thicknesses above 250 µm, surface skinning and moisture entrapment have been observed; staged drying with lower initial air velocity reduces microcracking. The low MFFT allows a 30°C substrate temperature during lamination without visible film defects, as verified by cross-hatch adhesion per ISO 2409 on corona-treated polyethylene terephthalate. In paper impregnation, a 15–30% dilution with water is applied through size presses; here the dispersion penetrates 40–60% of the sheet thickness, which affects subsequent water resistance and tensile energy absorption.
Formulation data for edge gluing of ash, beech, and maple indicates that 70–90 parts of EVA 04 combined with 10–20 parts of polyvinyl alcohol solution (15% solids) and 0.5–1.0 parts of aluminum chloride (as a 10% aqueous solution) produces a shear strength after 24 hours of pressing under 0.8–1.2 MPa at 20°C in the range of 8–14 N/mm² when tested according to EN 205. D3 durability, defined by EN 204 as resistance to 4 days of exposure to high humidity and cold water immersion, is achieved after 7 days of conditioning at 23°C and 50% relative humidity. In contrast, homopolymer PVAc systems typically require higher press pressures (1.5–2.0 MPa) to achieve equivalent initial strength and fail D3 when formulated without melamine-formaldehyde or isocyanate crosslinkers. Processing limitations for EVA 04 include pH drift below 3.0 in the presence of aluminum nitrate at levels above 1.5%, which can destabilize the dispersion within 4–6 hours at 30°C. Batch production should therefore be consumed within one shift or buffered with 1% polyvinyl alcohol to extend pot stability.
For paper-to-paper lamination, a 40–60 µm dry adhesive layer applied via engraved roller at line speeds of 80–120 m/min provides fiber-tearing bonds on clay-coated board within 30–60 minutes, as evaluated by Z-direction tensile testing per TAPPI T 541 at values exceeding 0.35 N/mm². When used in food packaging laminates, the product may be assessed under FDA 21 CFR 175.105 for indirect food contact adhesives, subject to specific migration testing. Unsupported films cast from EVA 04 show water whitening after 24-hour immersion at 23°C but recover transparency upon drying, a behavior that limits suitability for permanently submerged laminates.
In polymer-modified cement tile adhesives classified under EN 12004 as C1 or C2, EVA 04 is added at 2–6% polymer solids on cement mass. The dispersion reduces water demand by 10–20%, improves open time beyond 30 minutes at 23°C and 50% relative humidity, and increases flexural bond strength after 28 days to 1.0–1.5 N/mm² when tested by EN 1348. Cement compatibility requires a minimum pH of 4.0 to avoid coagulation upon addition to alkaline Portland cement slurries. Air entrainment should be monitored with a roller compaction air meter per EN 1015-7; values above 8% entrained air require defoamer addition at 0.1–0.3% by total formulation mass. High-shear pumping through gear pumps at pressures above 15 bar should be evaluated to avoid shear-induced viscosity loss.
Comparative evaluation against PVAc homopolymer and acrylic dispersion binders is performed on formulated films and adhesive joints under identical test protocols. The following ranges are typical formulation-dependent values; published data for untreated substrate configurations beyond LDPE and aluminum is limited.
| Property | VINAVIL EVA 04 | PVAc homopolymer | Acrylic dispersion |
|---|---|---|---|
| Glass transition temperature (ISO 16805) | −5 to +5°C | +28 to +35°C | −20 to +10°C |
| Minimum film-forming temperature (ISO 2115) | ≤2°C | +10 to +15°C without coalescent | 0 to +5°C |
| Elongation at break of dried film (ISO 527-3) | 300–600% | 5–15% | 200–500% |
| D3 wood adhesive classification (EN 204) | Formulable to D3 | D2 only without crosslinker | D2/D3 |
| Adhesion to untreated LDPE (ASTM D1876) | 2.0–4.0 N/mm | <0.5 N/mm | 0.5–1.5 N/mm |
Operational boundaries include storage at 5–30°C; freeze-thaw stability is limited to 3 cycles at −5°C before grit formation. Avoid combination with high doses of amine-based pH neutralizers, which can cause premature pseudoplastic gelation and impair mechanical emulsion stability. For high-temperature structural assembly above 80°C, EVA 04 is not recommended as the sole binder without thermosetting co-reactants.
