| HS Code | 354565 |
| Polymer Type | vinyl acetate-ethylene copolymer emulsion |
| Appearance | white milky liquid |
| Solid Content Weight Percent | 67.0 |
| Viscosity Brookfield Mpa S | 1800 |
| Ph | 5.5 |
| Glass Transition Temperature Degc | -15 |
| Minimum Film Forming Temperature Degc | 0 |
| Density G Cm3 | 1.07 |
| Surface Tension Mn M | 36 |
| Particle Size Micrometers | 1.5 |
| Stabilizer System | polyvinyl alcohol |
| Residual Vinyl Acetate Percent | 0.2 |
| Mechanical Stability | excellent |
As an accredited VINAVIL EVA 2607 L 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; sealed, labeled packaging ensures safe handling and stability of VINAVIL EVA 2607 L VAE Emulsion. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): VINAVIL EVA 2607 L VAE Emulsion packed in 1,000kg IBCs or drums, palletized and secured for safe transport. |
| Shipping | VINAVIL EVA 2607 L VAE Emulsion ships in drums, IBC totes, or bulk tankers. Protect from freezing and excessive heat; ideal storage between 5–35°C. Non-hazardous under typical transport regulations, but avoid spills. Keep containers sealed and dry during transit. |
| Storage | Store VINAVIL EVA 2607 L in tightly sealed original containers in a cool, dry, well-ventilated area away from direct sunlight and freezing temperatures. Ideal storage temperature is between 5°C and 35°C. Avoid prolonged exposure to heat or open flames. Keep containers upright and protected from damage. Under proper conditions, shelf life is typically 6 months from delivery. |
| Shelf Life | Shelf life is 12 months from production when stored in sealed containers at 5–40°C, protected from frost and direct sunlight. |
In high-speed corrugated board-to-board laminating operations running at 120–180 m/min, VINAVIL EVA 2607 L operates as the primary polymer in waterborne laminating adhesives formulated at 55–75 dry parts per 100 dry resin with rosin ester or hydrocarbon tackifier dispersions and a small quantity of polyvinyl alcohol protective colloid. The wet viscosity is controlled within 1,800–3,500 mPa·s according to Brookfield RVT spindle 3 at 20 rpm and 25°C to prevent slinging from rod-coating heads while maintaining sufficient transfer-gap stability on corrugated medium. The adhesive is applied by engraved roller coater at 4–8 g/m² dry coat weight; wet-nip pressure is held at 8–12 kN/m across the width of the combined board, and infrared drying zones are set to 45–65°C surface temperature. Regulatory compliance for food-contact packaging draws on FDA 21 CFR 175.105 and 176.170, with EU food-contact verification under Regulation EU 10/2011 when laminated board is used for dry, non-fatty food packaging. Mechanical bond retention is evaluated as fiber tear after T-peel separation using TAPPI T 494 dry tensile and ASTM D903 peel procedures. Terminal products include litho-laminated corrugated trays, folding carton laminate, point-of-sale display board, and book cover polyboard. On production lines where anionic emulsion stability is compromised, the use of cationic wet-strength resins, aluminum sulfate, or concentrated polyamine fixatives below pH 4.5 must be excluded; localized coagulation is first visible as granular deposit on the transfer roller and reduced wet tack at the nip. The most frequent defect on long-running corrugated orders is viscosity rise in return pans due to evaporation; skim layers are removed and the remainder re-screened through 100 µm bag filters before reintroduction, since unfiltered reuse produces rod-coater streaks and variable dry coat weight.
Tufted broadloom pre-coat and secondary-backing compounds require a binder that survives 130–160°C forced-air cure without edge cracking of the primary backing or reducing tuft bind after accelerated heat ageing. VINAVIL EVA 2607 L is compounded at 100 dry parts of the emulsion with 300–500 dry parts of calcium carbonate filler and 0.1–0.3 dry parts of ammonium hydroxide to a final compound pH of 8.0–8.5. The pre-coat is applied by puddle coater over grooved rolls at 15–25 kg dry compound per 100 kg primary backing fiber; drying is conducted in a three-zone oven where zone one is limited to 110–130°C to prevent skinning before zone three final cure at 145–160°C. Compliance is verified by ASTM D1335 tuft bind and mass-per-unit-area checks under ISO 8543, with REACH registration maintained under EC 1907/2006. Terminal products are broadloom carpet, carpet tiles, automotive floor mats, and entrance matting where the VAE binder provides fiber lock and secondary jute or synthetic backing adhesion. Coatings above 25 kg dry compound per 100 kg fiber are not recommended because the additional filler can exceed the cohesive strength of the ethylene-modified polymer at low temperature and create dusting during shearing operations. Batch-to-batch viscosity drift in filler slurries is controlled by pre-dispersing calcium carbonate at 65–70% solids in a separate slurry tank with high-shear agitation before letdown; direct dry filler addition into the emulsion creates gel specks that plug puddle coater lips.
In D2/D3 wood assembly adhesives, VINAVIL EVA 2607 L is used as the primary polymer at 45–65 wt% of the wet formulation, combined with polyvinyl alcohol stabilizer, calcium carbonate filler, defoamer, and preservative. The adhesive is applied through an engraved steel roller at 120–180 g/m² single-side spread and must enter the press before open assembly time exceeds 6–8 min at 50% RH and 20–25°C; beyond this window, a surface skin forms and fiber tear drops sharply. Cold pressing is carried out at 0.8–1.2 MPa for 20–35 min on edge-glued panels, with longer press times required for beech and ash at moisture contents above 10%. The anionic dispersion is incompatible with cationic wet-strength resins, aluminum sulfate, and polyamine fixatives, which cause immediate microcoagulation visible as stringing on roll coater transfer rolls and reduced adhesive transfer. Press hydraulic pressure decay of more than 0.1 MPa over the first 10 minutes indicates glue-line starvation or panel thickness variation; this is corrected by lay-on roller pressure, not by increasing adhesive spread beyond 180 g/m², which worsens squeeze-out. Compliance testing follows EN 204:2016 classes D2 and D3, with heat resistance assessed under EN 14257:2006 and shear strength under ASTM D905-08. Terminal products include solid wood edge-glued panels, MDF edge banding, door stiles, furniture posts, and interior softwood laminations. D3 classification does not constitute full exterior approval; structural or fully weather-exposed bonding requires a different crosslinking chemistry and is outside the intended use of this dispersion.
For C2TE-class cementitious tile adhesives, VINAVIL EVA 2607 L is introduced at 4–6 wt% polymer solids on cement weight, corresponding to approximately 8–12 kg of a 52–56% non-volatile dispersion per 100 kg cement. The emulsion is first blended into gauging water before contact with the dry-mix to avoid flocculation of cement particles, then mixed in a forced-action mortar mixer at 180–250 rpm; higher shear air incorporation destabilizes the latex and produces pinholes in the cured mortar film. Mortar flow is adjusted to 140–160 mm after a 15 min rest period, and open time is controlled at 20 min and 30 min according to EN 12004:2017 and ISO 13007-1:2014. C2TE classification requires a minimum tensile adhesion of 1.0 MPa after each conditioning regime, including water immersion, heat ageing, and freeze-thaw cycling; shear adhesion is additionally verified under EN 1348. The mortar is applied with a notched trowel to concrete substrates at moisture content below 4%. Terminal products are large-format porcelain tile adhesives, exterior façade tile mortars, and thin-bed adhesives for low-porosity stone. Addition above 6 wt% polymer solids is not recommended: cement hydration at the interface is retarded, 28-day compressive strength is reduced, and the mortar can shift from cohesive failure to adhesive failure at the tile interface. Open time failure at 30 min on low-porosity porcelain can be traced to insufficient dispersion in gauging water rather than cellulose ether dosage; pre-mixing the emulsion for 60 seconds at 120–150 rpm before adding dry mix reduces phase inversion and improves wetting on high-density tile backs. The liquid dispersion is used where higher polymer molecular weight retention and faster wetting of fine-grind cementitious matrices outweigh the dry-mix logistics advantage of redispersible powder.
Interior wall paint formulations targeting VOC content below 30 g/L can use VINAVIL EVA 2607 L at 18–28 wt% of total paint, with matte and eggshell formulations at pigment volume concentration between 55% and 70%. The pigment grind is carried out in a high-speed disperser at 4–6 m/s tip speed; the emulsion is added during letdown at agitator tip speed below 2 m/s to avoid shear-induced coagulation. Final pH is adjusted to 8.0–8.5 with ammonia or 2-amino-2-methyl-1-propanol. Films form above 5°C substrate temperature without coalescing solvent; below that threshold a low-VOC coalescent is required, and applied film thickness must remain below 200 µm wet per coat to prevent mudcracking. Foam generation in the letdown tank is minimized by using low-shear axial impellers at 15–30 rpm for final viscosity adjustment; entrained microfoam depresses scrub resistance and creates pinholes when drawdown is performed on unprimed gypsum board. Wet scrub resistance is evaluated under ISO 11998:2006 after 28 days of cure, with class 2 performance corresponding to 5–20 µm film loss after 200 cycles; ASTM D2486-17 may be used as a comparative scrub-cycle protocol. Terminal products include low-odor interior wall paints, ceiling paints, renovation paints, and opaque primers for absorbent mineral substrates. The dispersion is not intended for exterior topcoats or direct sunlight exposure, where UV-induced surface chalking and reduced gloss retention occur; high-gloss alkyd-like finishes also lie outside the performance envelope of this polymer.
Air-laid absorbent core webs sprayed with VINAVIL EVA 2607 L at 8–12 wt% dry add-on by fiber mass retain cross-direction tensile strength without the brittle friability observed with fully acrylic binder systems. The dispersion is diluted to 10–15% solids with deionized water and applied through spray atomizers at 0.8–1.2 bar air pressure in the forming chamber; through-air drying is set at 105–135°C with line speed limited by air permeability and core density. Binder migration during through-air drying is controlled by preheating the formed web to 60–70°C before the main drying zone; rapid surface cure at higher initial temperatures creates a surface film that blocks moisture escape and produces low-strength core sections. Tensile evaluation follows ISO 9073-3:2023 for strip breaking force and elongation, while bind-off resistance is assessed by EDANA NWSP 110.4; REACH restrictions under EC 1907/2006 apply to residual monomers in finished webs. Terminal products include industrial spill control pads, air-laid packaging void fill, absorbent core wrap for controlled environments, and wiping substrates that do not involve sustained skin contact under occlusion. Compatibility limits are significant: cationic surfactant treatments, low-pH buffers below 4.5, and polyvalent metal salt mordants produce pad-by-pad binder distribution variability and lower tensile retention; published data for this exact dispersion in high-loft air-laid systems is limited, so production-scale binder dosing must be validated against fiber furnish and dryer residence time.
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VINAVIL EVA 2607 L VAE Emulsion is an aqueous copolymer dispersion of vinyl acetate and ethylene, supplied as a milky-white liquid without added coalescing solvents or phthalate plasticizers. The non-volatile content, measured by ISO 3251, is typically 54–56 wt%. Brookfield viscosity, determined by ISO 2555 at 23 °C with spindle 4 at 20 rpm, falls between 3,000 mPa·s and 5,000 mPa·s. The pH is maintained between 4.5 and 5.5. Because ethylene is copolymerized directly into the vinyl acetate backbone, the dispersion forms a film at or below 0 °C under ISO 2115 without the assistance of external coalescing solvents. This structural characteristic distinguishes EVA 2607 L from polyvinyl acetate homopolymer emulsions, which generally require an added plasticizer to achieve similar low-temperature film formation and flexibility. The absence of mobile plasticizer reduces the risk of migration into porous paper, board, and recycled fiber streams.
The dispersion is pseudoplastic, not Newtonian. Low-shear Brookfield values from ISO 2555 do not predict behavior in slot-die or engraved-roll transfer where shear rates exceed 1,000 s−1. In those application systems, the high-shear viscosity and the time required for viscosity recovery control transfer weight and coat weight uniformity. The low MFFT allows film coalescence in unheated warehouses, but on porous substrates the drying process is often dominated by water absorption into the substrate rather than by evaporation. This means that a continuous film can form even when ambient air temperature is below the bulk MFFT, provided the substrate removes water rapidly. Film formation alone does not create a useful adhesive bond; wet tack must develop before the substrate spring-back separates the bond line.
Field data from paperboard converting show that conditioning the dispersion to 20–25 °C before transfer from bulk containers reduces viscosity fluctuations and air entrainment. Progressive cavity pumps with speed control are preferred over diaphragm pumps because diaphragm pressure pulsation can destabilize the dispersion at the suction side and create microbubbles that later appear as pinholes in the adhesive film. Filtration of the dispersion through 100–200 µm basket filters is common before the coating station.
Table 1. Typical lot data reported for EVA 2607 L VAE Emulsion.
| Parameter | Method | Typical range |
|---|---|---|
| Non-volatile content | ISO 3251 | 54–56 wt% |
| Brookfield viscosity at 23 °C | ISO 2555 | 3,000–5,000 mPa·s |
| pH | ISO 976 | 4.5–5.5 |
| Density at 20 °C | ISO 2811-1 | 1.05–1.08 g/cm³ |
| Minimum film formation temperature | ISO 2115 | ≤0 °C |
On corrugated board and paper sack converting lines, wet film weights typically range from 30 g/m² to 60 g/m². Line speeds commonly fall between 80 m/min and 150 m/min; at these speeds the open time available for fiber wet-out is less than 2 s. Under these conditions, initial wet tack rather than final dry strength controls the running rate. Formulations based on EVA 2607 L are often modified with small additions of boric acid or aluminum chloride to form reversible complexes with the polyvinyl alcohol stabilizer, producing thixotropy and immediate grab. The addition must be made from dilute solution under continuous agitation; local overdosing creates gel bodies that block filters and produce coating streaks. Practical addition levels are established by pH shift and rotational viscosity rather than by fixed percentage. At pH values below 3.5, storage stability is compromised. Corona-treated low-density polyethylene used in laminated paperboard is generally specified at 38–44 mN/m; below this range, adhesion decreases independently of the emulsion selected. Published data for EVA 2607 L on corona-treated film configurations is limited; the surface-energy range is drawn from converting practice.
In a polyvinyl acetate homopolymer, low-temperature film formation is achieved by adding a mobile plasticizer, which lowers the storage modulus across the entire service temperature range and can create creep under sustained load. The plasticizer is not chemically bonded to the polymer and can migrate to the bond line, reducing cohesive strength over time. In EVA 2607 L, the ethylene sequences are part of the polymer chain. They reduce crystallinity and lower the glass transition temperature without introducing a low-molecular-weight mobile species. The result is a different set of failure modes: on porous substrates, the unmodified adhesive tends to fail by fiber tear under short peel loading, but it can still exhibit creep at temperatures above 60–70 °C. The distinction matters in formulating because additives that improve high-temperature creep without sacrificing wet tack are often required.
The comonomer content is moderate. Compared with higher-ethylene VAE grades used in pressure-sensitive adhesives, EVA 2607 L has less pressure-sensitive tack and higher cohesive strength at room temperature. Compared with lower-ethylene VAE grades or vinyl acetate homopolymers, it forms films at lower temperatures without external coalescing solvents. This intermediate position makes it a general-purpose adhesive base for porous substrates rather than a finished pressure-sensitive adhesive.
Table 2. Functional comparison with alternative aqueous binder classes.
| Property | EVA 2607 L VAE | PVAc homopolymer dispersion | Acrylic dispersion |
|---|---|---|---|
| Low-temperature film formation | MFFT ≤0 °C without coalescing solvent | often requires plasticizer or coalescent | monomer-dependent; −20 °C to 30 °C |
| Wet tack on porous paperboard | high | moderate unless plasticized | moderate |
| Heat resistance under static load | 60–70 °C in unmodified films | 50–60 °C | 90–120 °C |
| Plasticizer migration | absent | possible | absent |
| Unmodified water resistance | limited | limited | moderate to high |
Wood assembly uses EVA 2607 L as a primary binder in interior D2 and D3 adhesives. D2 formulations according to EN 204 are commonly extended with calcium carbonate or kaolin at 30–40 phr to control penetration and reduce cost. The filler must be incorporated with low-shear mixing; high-speed dissolvers with tip speeds above 15 m/s can generate air and shear-induced coagulum. The dry bond is tested after conditioning at 23 °C and 50% RH; D2 creep resistance is generally achievable without crosslinker. D3 water resistance requires a crosslinker such as a blocked isocyanate or glyoxal-based system. Pot life of such formulations typically shortens to 4–8 h depending on temperature and pH drift. Unmodified films do not pass D4 boiling-water cycles. This limitation must be stated in technical documentation to prevent specification errors.
The dispersion is mechanically stable but not immune to freeze-thaw damage. Storage below 5 °C is not recommended; freezing causes irreversible coagulum formation. Repeated freeze-thaw cycling is destructive. Storage above 40 °C accelerates hydrolysis of vinyl acetate, releasing acetic acid and lowering pH. A pH drop below 3.8 is a warning sign of advancing instability, even if the dispersion still appears uniform. Mild circulation is acceptable, but high-shear pumps with undersized suction lines can subject the dispersion to shear rates above 10,000 s−1, causing shear-induced coagulation in sensitive batches. Stainless steel, HDPE, and PTFE-lined equipment are preferred; copper and brass are incompatible because copper ions can promote destabilization and discoloration. pH adjustment should be made with dilute ammonia or sodium bicarbonate, never with concentrated alkali. Multivalent salts such as aluminum sulfate must be prediluted; adding them directly to the emulsion can produce localized coalescence within seconds.
Formulation compatibility with thickeners, fillers, and defoamers is an operational consideration. Cellulose ether thickeners such as hydroxyethyl cellulose at 0.1–0.5 wt% increase low-shear viscosity but can reduce wet tack if overused. Fumed silica at 1–3 wt% increases yield stress and reduces filler settling but may create a pasty consistency that is difficult to pump. Mineral oil defoamers are generally effective at 0.1–0.3 wt%; silicone-containing defoamers at higher levels can cause surface defects and interfere with printability. Plasticizer addition is not required, but if benzoate or citrate plasticizers are used for specialized tack adjustment, levels should remain below 10 wt% of polymer solids because higher concentrations reduce heat resistance and increase blocking. Cationic additives should be tested before use, because flocculation can occur when the zeta potential of the negatively charged particles approaches zero.
Indirect food-contact suitability is formulation-dependent. Under FDA 21 CFR 175.105, the adhesive as a whole must be evaluated for the intended use; the polymer alone does not confer automatic compliance. Under REACH Regulation EC 1907/2006, monomers and additives are subject to registration and restriction obligations. The safety data sheet under EC 1272/2008 should be reviewed before bulk handling. Formaldehyde content in current VAE manufacturing is typically controlled below classification thresholds; if a lot-specific certificate is required, the value must be confirmed by the manufacturer because residual levels can vary with production conditions. The product is not intended for direct food contact or pharmaceutical matrices. Published data for direct food-contact applications is limited.
