| HS Code | 702176 |
| Appearance | Milky white liquid |
| Solid Content | 55±1% |
| Viscosity | 1000-3000 mPa·s |
| Ph | 5-7 |
| Density | 1.05-1.10 g/cm³ |
| Glass Transition Temperature | -10 to -5 °C |
| Minimum Film Forming Temperature | 0-5 °C |
| Particle Size | 0.2-1.0 μm |
| Residual Vinyl Acetate Monomer | ≤0.1% |
| Ethylene Content | 15-25% |
| Film Elongation | >600% |
| Water Resistance | Good |
As an accredited High Ethylene 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 1,000 kg IBC totes, with sealed liners to prevent moisture ingress and ensure stability. |
| Container Loading (20′ FCL) | 20′ FCL: High Ethylene VAE Emulsion loaded in drums or flexitank, secured, labeled, and containerized for safe transport. |
| Shipping | High Ethylene VAE Emulsion ships in sealed drums, IBC totes, or bulk tankers. Protect from freezing and excessive heat; store below 40°C. Use ventilated, dry containers with secure bracing. Avoid contact with acids or oxidizers. Ensure proper labeling and spill containment per local regulations. |
| Storage | Store High Ethylene VAE Emulsion in sealed, corrosion-resistant containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Maintain temperatures between 5–35°C to prevent freezing or coagulation. Avoid contact with oxidizing agents and acids. Stir gently before use. Shelf life is typically six months under proper storage. |
| Shelf Life | Shelf life is typically 6–12 months when stored sealed, protected from frost, and kept at 5–40°C. |
| Application | Compliance standard | Performance test method | Critical parameter |
|---|---|---|---|
| Plasticised PVC profile lamination | FDA 21 CFR 175.105 | ASTM D903-98(2017) | Wet coat weight 60–90 g/m² |
| Nonwoven hygiene binder | OEKO-TEX Standard 100 class I/II | ISO 9073-3:2023 | Binder add-on 15–25% |
| Carpet precoat | ISO 9239-1:2010 | ASTM D1335-17 | Filler-to-binder ratio 3:1–5:1 |
| Tile adhesive | EN 12004:2007+A1:2012 | EN 1348 | C2 tensile adhesion ≥1.0 N/mm² |
| Interior wall paint | Directive 2004/42/EC | ASTM D2486-17 | VOC limit 30 g/L waterborne flat |
| Alkaline paper coating | FDA 21 CFR 176.170, 176.180 | ISO 3783:2006 | Binder level 10–15 phr pigment |
Competitive High Ethylene VAE Emulsion prices that fit your budget—flexible terms and customized quotes for every order.
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High Ethylene VAE Emulsion (HE-VAE) denotes an aqueous dispersion of a vinyl acetate-ethylene copolymer in which ethylene content on dry polymer is at least 18 wt%. The dispersion is stabilized by mixed anionic/nonionic emulsifiers and is supplied as a white to off-white liquid. Because model designations are manufacturer-specific, HE-VAE is used here as a class identifier rather than a proprietary grade code; procurement should reference the producer’s grade code and certificate of analysis. Representative specification ranges for commercial high-ethylene VAE grades are summarized below. The defining formulation advantage is internal plasticization through ethylene incorporation, which reduces the glass transition temperature and minimum film-forming temperature without external coalescent or plasticizer addition.
| Property | Specification range | Method |
|---|---|---|
| Nonvolatile content | 54–56% | ISO 3251 |
| pH | 4.0–5.5 | ISO 976 |
| Brookfield RVT viscosity, spindle 3 at 20 rpm, 25 °C | 1,800–4,000 mPa·s | ISO 2555 |
| Density | 1.06–1.09 g/cm³ | ISO 2811 |
| Minimum film-forming temperature | ≤0 °C | ISO 2115 |
| Glass transition temperature midpoint | -20 °C to -10 °C | ISO 11357-2 |
| Ethylene content on dry polymer | 18–25 wt% | Producer-reported |
Commercial high-ethylene VAE products typically report ethylene content between 18 wt% and 25 wt% on dry polymer. The exact value is producer-reported and influences the balance between wet tack, tensile strength, and barrier properties. Where the application requires low plasticizer migration, grades at the upper end of the ethylene range are selected because they can form coherent films below 5 °C without dibutyl phthalate or benzoate plasticizers. Residual vinyl acetate monomer and free formaldehyde values should be obtained from the producer’s certificate of analysis and compared with REACH Annex XVII restrictions and food-contact status under 21 CFR 175.105 where applicable.
Vinyl acetate homopolymer emulsions exhibit a glass transition temperature near 30 °C and require external plasticizer or coalescent to produce flexible films at ambient temperature. High-ethylene VAE copolymerization inserts ethylene segments along the acetate backbone, reducing chain packing and shifting the glass transition temperature to between -20 °C and -10 °C as measured by ISO 11357-2. This structural change modifies tensile response. Under ISO 527-3, films from high-ethylene VAE typically display lower elastic modulus and higher elongation at break than analogous PVAc homopolymer films; specific values depend on molecular weight, branching, and crosslinker selection and should be taken from the supplier’s certificate of analysis rather than predicted from ethylene content alone.
Compared with acrylic emulsions, high-ethylene VAE does not rely on alkyl acrylate or methacrylate comonomers for low-temperature film formation. Acrylic dispersions generally provide superior resistance to ultraviolet radiation and hydrolysis, whereas high-ethylene VAE offers adhesion to polar surfaces and, after corona treatment, to polyethylene and polypropylene films. The operational boundary is exterior durability: unmodified high-ethylene VAE should not be specified for long-term exterior wood or facade coatings unless light stabilizers and UV absorbers are incorporated and the formulation is evaluated under ISO 11341 or ASTM G154.
Compared with ethylene-vinyl acetate redispersible powder, the wet high-ethylene VAE emulsion avoids the spray-drying step and the thermal history associated with powder production. Redispersible powder is preferred for dry-mix mortars and cementitious tile adhesives, whereas the wet emulsion is used in liquid adhesives, coatings, laminating, and binders. The difference is physical form and application method rather than polymer composition alone.
Against solventborne polychloroprene, solventborne polyurethane, and EVA hot-melt systems, high-ethylene VAE is waterborne and can be compounded without solvent recovery or explosion-proof mixing. It does not require hot-melt application equipment. The trade-off is a water phase that introduces freeze-thaw sensitivity and slower set speed than solventborne adhesives. Open time, wet tack, and green strength should be measured using the applicable end-use procedure for the specific floor covering or packaging category; where standardized comparative methods are required, adhesive shear and peel methods such as ISO 4587 and ISO 11339 provide objective data.
Minimum film-forming temperature for high-ethylene VAE is generally at or below 0 °C when tested per ISO 2115. Coalescent-free film formation proceeds at substrate temperatures above 5 °C. Below 0 °C, free water in the wet film can freeze before full particle deformation and interdiffusion, producing a discontinuous film with reduced adhesion and water resistance. Cold-weather application requires heated storage, heated application lines, or partial propylene glycol addition. Any glycol or coalescent addition must be counted against the VOC limit for the relevant product category under Directive 2004/42/EC or the applicable national regulation.
The dispersion is anionically stabilized. pH drift below 4.0 accelerates hydrolysis of vinyl acetate and releases acetic acid, which further lowers pH and may generate coagulum. During compounding, pH is monitored per ISO 976 and buffered with dilute sodium bicarbonate solution to 4.5–5.0 before fillers are charged. Calcium carbonate raises pH and can destabilize the dispersion if added rapidly; production-scale mixing should use a low-shear planetary mixer with anchor sweep at 20–40 rpm rather than a high-speed Cowles blade. If a rotor-stator mill is required for pigment or filler dispersion, the emulsion should be added after the grind phase when batch temperature is below 35 °C to avoid shear-induced coagulum.
Freeze-thaw stability is limited. Storage should be maintained at 5–30 °C. Frozen material may undergo irreversible coagulation, and repeated freeze-thaw cycles are not recommended. High-ethylene VAE should not be combined with cationic additives unless a compatibility trial confirms stable viscosity and particle size retention over 48 h. Excessive high-HLB nonionic surfactant additions can displace the anionic stabilizer layer; wetting agent additions should be minimized and pre-diluted before incorporation.
Viscosity drift is monitored over 24 h and 72 h using ISO 2555 after compounding. If viscosity increases beyond the producer’s stated tolerance without pH change, coagulum or partial destabilization should be suspected and the batch screened through a 100 µm filter. Published data for individual production-scale batches varies with filler type and mixing history.
In resilient flooring adhesive manufacture, high-ethylene VAE is combined with filler slurries, wetting agents, defoamers, and rheology modifiers. The high ethylene content allows plasticizer-free formulations, which removes external plasticizer migration as a failure mode in PVC floor coverings and maintains low-temperature flexibility of the bonded layer. Shear resistance on concrete and wood adherends is measured under ISO 4587; flexible floor covering peel resistance is measured under ISO 11339. Specific values depend on filler type, filler loading, substrate moisture condition, and surface preparation, and published data for individual formulations is limited.
For laminating adhesives applied by roll coater or reverse gravure at ambient temperature, the low MFFT supports coalescent-free wet-film laydown and reduces the risk of pinholing on absorbent paperboard. Corona-treated polyethylene and polypropylene film surfaces are used after verifying wetting tension per ISO 8296; adhesion values are influenced by surface energy and treatment age. High-ethylene VAE is likewise used in paper-to-film lamination where cold-temperature flexibility and plasticizer-free construction are required.
Pressure-sensitive adhesive formulations based on high-ethylene VAE may require tackifier dispersion. Rosin ester or hydrocarbon tackifier dispersions must be checked for pH and anionic compatibility prior to addition because acidic or cationic tackifier systems can destabilize the polymer dispersion. Loop tack and peel adhesion can be measured by ASTM D6195 and ISO 29862, respectively; performance depends on tackifier concentration, drying conditions, and substrate.
Construction adhesive applications include resilient flooring, wall covering, insulation, and general assembly. The product is selected where low-temperature flexibility, plasticizer-free formulation, and waterborne handling are required. The operational limit is water resistance: VAE films are not highly crosslinked and retain water sensitivity. For wet-area or high-humidity applications, crosslinkers such as glyoxal, aluminium chloride, or other approved reactive additives must be evaluated. Crosslinker addition changes pot life and pH; the batch should be checked for viscosity stability over 24 h and for gel fraction or solvent swell ratio if water resistance is claimed.
In textile and nonwoven binder applications, high-ethylene VAE is applied by padding, spray bonding, or saturation. The lower glass transition temperature contributes to soft hand and low-temperature flex resistance, but dry and wet tensile strength should be measured per ISO 9073-3 and compared with the substrate specification. The emulsion is not a self-crosslinking binder unless a crosslinking monomer or external crosslinker is present; producers should be consulted for low-formaldehyde grades where textile certification is required.
Product handling follows standard waterborne polymer practice: use stainless steel, HDPE, or lined carbon steel tanks; avoid copper and brass fittings that can generate metal ions and accelerate destabilization; protect from freezing; and maintain mild agitation in storage to prevent separation.
