| HS Code | 104991 |
| Productname | VINNAPAS 4240 N |
| Chemicaltype | Vinyl acetate-ethylene (VAE) copolymer dispersion |
| Appearance | White, aqueous dispersion |
| Solidscontent | 55.0 - 57.0 % |
| Viscosity | 10,000 - 14,000 mPa·s (Brookfield RVT, 20 rpm, 23°C) |
| Ph | 4.5 - 5.5 |
| Density | 1.06 g/cm³ (approx.) |
| Particlesize | 1.0 µm (approx.) |
| Glasstransitiontemperature | -5 °C (approx.) |
| Minimumfilmformingtemperature | 0 °C (approx.) |
| Stabilizersystem | Polyvinyl alcohol (PVOH) |
As an accredited VINNAPAS 4240 N factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | VINNAPAS 4240 N is supplied in 200 kg drums or 1,000 kg IBC containers as a VAE copolymer dispersion. |
| Container Loading (20′ FCL) | 20′ FCL container loading: palletized drums of VINNAPAS 4240 N, secured and protected, shipped as full container load. |
| Shipping | VINNAPAS 4240 N is an aqueous vinyl acetate-ethylene copolymer dispersion shipped in drums, totes, or bulk containers. Protect from freezing and excessive heat; ideal storage between 5–40°C. Keep containers sealed and upright to prevent skinning or contamination. Generally non-hazardous, but handle with standard chemical safety precautions. |
| Storage | Store VINNAPAS 4240 N in tightly sealed original containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Maintain temperatures between 5°C and 35°C; protect from frost. Avoid prolonged storage above 35°C. Stir gently before use. Use within the manufacturer's specified shelf life to ensure product performance. |
| Shelf Life | Shelf life is typically 12 months from delivery if stored in sealed containers at 5–30°C, protected from frost and direct sunlight. |
In one-component waterborne parquet adhesive formulations, VINNAPAS 4240 N is compounded as the sole elastomeric binder at wet dispersion additions of 35–55 wt%, corresponding to a dry polymer weight fraction of 22–32 wt% relative to the total wet adhesive. The dispersion is a polyvinyl alcohol-stabilized vinyl acetate-ethylene copolymer with producer-reported solids content of 54.0–56.0 wt%, pH 4.0–6.0, and minimum film-forming temperature of approximately 0 °C, which permits coalescence on subfloor temperatures above 10 °C without volatile plasticizers or organic coalescents. Compliance for this application is assessed under EN 14293:2006 for adhesives used to bond parquet to subfloors and under EN 204:2016 classification D3/D4 for non-structural wood bonds exposed to elevated humidity and occasional water contact; indoor emission performance is verified by EN 16516:2017+A1:2020 chamber testing over 28 days. Production is performed in a jacketed vacuum dissolver with a high-shear disk running at 18–25 m/s peripheral speed and a motor rating of 15–25 kW; the filler component, typically 30–45 wt% ground calcium carbonate with D50 5–10 µm, is charged incrementally until the final adhesive viscosity reaches 20,000–35,000 mPa·s at 23 °C on a Brookfield rotational viscometer. The batch is deaerated at -0.85 bar for 20–30 min and passed through a 400 µm sieve before filling. One-point open time on a non-absorbent concrete slab at 23 °C/50% RH is 20–30 min; substrate temperatures below 10 °C delay tack development and require the dispersion content to be moved toward the 50–55 wt% upper limit rather than adding external film-forming aid. Terminal product types include one-component waterborne adhesives for solid hardwood, engineered wood, bamboo, and cork flooring; the absence of amine or epoxy co-reactants excludes use in structural load-bearing joints that must satisfy EN 302-1 performance levels. The main processing conflict is shear-induced temperature rise above 35 °C, which can initiate surface skin formation and reduce wet-edge time; jacketing with 20–25 °C cooling water and staged filler addition are required on batch sizes exceeding 500 kg.
Addition of VINNAPAS 4240 N at 5–12 wt% of cement mass for polymer-modified ceramic tile adhesives and at 8–18 wt% for two-component flexible cementitious waterproofing membranes modifies the cement matrix without exceeding a total water-to-cement ratio of 0.38–0.45, the range within which the dispersion contributes film flexibility and adhesion while limiting strength loss. The dispersion is mixed with Portland cement conforming to EN 197-1:2011 and silica sand 0.1–0.6 mm in a low-shear paddle mixer operating at 300–500 rpm; after 45–60 min at 20 °C the pot life is exhausted as the polyvinyl alcohol-protected particles coagulate under the ionic strength of the cement pore solution and the mix becomes non-trowelable. Classification for ceramic tile adhesives is determined under EN 12004:2007+A1:2012 by tensile adhesion strength after dry storage, water immersion, heat ageing, and freeze-thaw cycling; waterproofing membranes are evaluated under EN 14891:2017 using crack-bridging, water impermeability, and flexural adhesion test methods specified in that standard. For waterproofing, application is made with a stainless-steel trowel or airless spray in two passes to a total wet film thickness of 1.5–2.0 mm; tile adhesive systems are applied with a 6 mm square-notched trowel to a bed thickness of 3–5 mm. The dispersion remains compatible with cement equilibrium pH >11.5, but formulators should avoid adding more than 0.5 wt% of anionic naphthalene-sulfonate superplasticizer before the dispersion, because competitive adsorption at the particle surface destabilizes the protective colloid and can induce local coagulation at the mixer wall. Terminal product types include two-component flexible cementitious waterproofing slurries, two-component C2-class tile adhesives with S1 deformability, and polymer-modified repair mortars. Published data for VINNAPAS 4240 N in tile adhesive systems with dispersion addition above 12 wt% of cement mass is limited; validation per EN 12004:2007+A1:2012 is required before field use.
For wet-set vinyl sheet and luxury vinyl tile adhesive production, VINNAPAS 4240 N is compounded at 40–60 wt% of the total wet adhesive as a non-phthalate plasticizer-free binder; the remaining mass comprises 30–45 wt% calcium carbonate filler, 0.3–1.0 wt% hydroxyethyl cellulose thickener, and 0.1–0.5 wt% biocide dispersion. Emissions are verified by EN 16516:2017+A1:2020 after 28 days in chamber testing; the test record supplies total volatile organic compound and semivolatile organic compound decay data for national indoor air compliance decisions. Peel resistance is quantified by ASTM D6862-12 at 90° peel on galvanized steel, and shear resistance is measured by ASTM D1002-10 lap shear on beech wood. The adhesive is manufactured in a planetary mixer with a spiral hook running at 20–40 rpm; the filler is loaded after the polymer has been thickened to 5000–8000 mPa·s to avoid dust encapsulation, and the batch is finished to 20,000–40,000 mPa·s at 23 °C. A critical processing boundary is the pH window 4.0–6.0; addition of alkaline wetting agents that raise the system above pH 7.5 can collapse the dispersion viscosity toward 5000 mPa·s, requiring post-thickening correction and creating a secondary heat history that shortens wet-edge time. Application is made with A2 or B1 notched trowels selected to achieve a wet film weight of 250–350 g/m²; open time at 23 °C/50% RH is 15–30 min, and flash-off before covering with vinyl sheet is 5–10 min. Terminal product types are one-component waterborne adhesives for sheet PVC, luxury vinyl tile, and semi-flexible PVC floorcoverings on absorbent and non-absorbent subfloors; this system is not formulated for outdoor exposure or permanent water immersion.
Where carpet tile and broadloom adhesives are manufactured for roller-applied pressure-sensitive installation, VINNAPAS 4240 N provides the elastic base at 30–50 wt% of the wet adhesive, with tackifier resin dispersion added at 20–35 wt% and calcium carbonate filler at 15–30 wt%. Raw material controls are selected to maintain the mixture within the restrictions of REACH (EC) No 1907/2006 candidate list; no phthalate plasticizers or APEO surfactants are introduced. Peel strength after 24 h is measured under ASTM D6862-12 at 180° peel angle and 300 mm/min crosshead speed; residual tack retention is evaluated at 25 °C/50% RH for 7 days on a stainless-steel panel. Indoor emission is assessed by EN 16516:2017+A1:2020. The adhesive is compounded in a high-speed disperser with a saw-tooth blade running at 15–20 m/s tip speed; rosin ester tackifier dispersion is added slowly while the pH is held between 4.5 and 6.0 to prevent shock coagulation. The final solids content is 55–65 wt% and rotational viscosity is 30,000–60,000 mPa·s at 23 °C; application is performed with a short-nap roller at a wet film thickness of 150–200 µm, leaving 15–25 µm dry adhesive after forced-air drying. Terminal product types include pressure-sensitive carpet tile adhesive, releasable broadloom adhesive, and moisture-tolerant carpet adhesive for low-emission interior installations. Formulators should not incorporate more than 0.5 wt% zinc oxide, because zinc ion complexation with the polyvinyl alcohol stabilizer can reduce storage stability below 6 months at 40 °C.
For construction wet-bonding adhesives intended for porous-to-porous and porous-to-non-porous interfaces, VINNAPAS 4240 N is selected when the formulation must remain free of external plasticizers and silane crosslinkers to avoid package instability. The dispersion is incorporated at 50–70 wt% of the wet formulation, with 20–35 wt% ground calcium carbonate with D50 3–8 µm and 0.2–0.6 wt% associative polyurethane thickener. Bond performance is measured under ASTM D1002-10 single-lap shear on aluminium substrates after 7 days at 23 °C/50% RH, and peel behaviour is evaluated under ASTM D903-98 at 180° separation and 300 mm/min crosshead speed. Production uses a planetary dissolver with helical stirring at 20–30 rpm and a hard vacuum of -0.85 bar; entrapped air is removed until bubble density is below 0.2% by volume, as measured by pycnometer, because air entrainment above this level causes nozzle sputter in airless application. The adhesive is applied at 120–180 g/m² by airless spray using 0.8–1.2 mm tips or by trowel on uneven substrates; wet bonding allows repositioning for 10–15 min before the film reaches the set-by-contact stage. Terminal product types include one-component construction adhesives for expanded polystyrene insulation panels, decorative high-pressure laminate edging, and gypsum drywall lamination where indoor emission specifications under EN 16516:2017+A1:2020 exclude phthalate plasticizers. The operational boundary is pH: contact with aluminum at pH below 4.0 can generate hydrogen evolution at the adhesive-metal interface, reducing lap shear strength under ASTM D1002-10 after 14 days humid ageing; the recommended pH range is 4.5–5.5 maintained with buffered acetic acid solution.
Panel and veneer lamination lines processing beech and okoume face veneers use VINNAPAS 4240 N at 40–60 wt% of the wet adhesive in cold-press and hot-press assembly of flat-panel furniture components. The dispersion is combined with 10–25 wt% calcium carbonate and 0.2–0.5 wt% of a water-resistance crosslinker added immediately before coating; compliance for interior non-structural wood bonds is classified under EN 204:2016 D3, and emission release is assessed by EN 16516:2017+A1:2020 before the finished panel is released for interior use. Application is performed with a roller coater depositing 40–60 g/m² wet film on the veneer back, followed by press lamination at 50–80 °C and 0.5–1.0 N/mm² for 3–5 min; cold-press lines operate at 20–25 °C and 0.3–0.6 N/mm² for 30–60 min. Terminal product types include veneer-faced medium-density fibreboard, door skins, and edge banding for furniture; the formulated adhesive is not intended for structural load-bearing wood assemblies requiring EN 302-1 performance.
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VINNAPAS 4240 N is supplied as a white to off-white polyvinyl alcohol-stabilised redispersible polymer powder based on a vinyl acetate-ethylene copolymer. The product is formulated for dry-mix cementitious mortar systems, including polymer-modified tile adhesives, self-leveling underlayments, cementitious repair mortars, and waterproofing slurries. In such systems, the powder is typically incorporated at 2–5 wt% of total dry mix. During mixing, the powder redisperses in water and forms a continuous polymer film during drying that bridges microcracks, increases flexural strength, and reduces capillary water ingress. The model designation VINNAPAS 4240 N identifies a specific grade within the VINNAPAS family; its glass transition temperature is approximately −7 °C, and its minimum film formation temperature is approximately 0 °C, which permits coalescence under standard curing conditions without supplementary coalescing agents. The powder has a bulk density of 450–650 g/L, a residual moisture content of no more than 1.5 wt%, and an ash content of 10–14 wt% after incineration at 1000 °C. These parameters contribute to reliable metering and homogeneous dry blending in production-scale ribbon blenders and ploughshare mixers. The ethylene comonomer chemistry also reduces the need for external plasticizers compared with harder vinyl acetate homopolymer or vinyl chloride-based powders.
The powder is hygroscopic and should be stored in unopened packaging below 40 °C and 60% RH; exposure to high humidity can reduce redispersibility and promote lump formation. A controlled residue on the 250 µm sieve of no more than 4 wt% supports silo discharge and minimises bridging in screw conveyors and rotary valves on continuous mortar lines. The pH of a 10 wt% aqueous redispersion is specified between 6.0 and 8.0, which is compatible with ordinary Portland cement and calcium aluminate systems; formulations containing strongly acidic accelerators or highly alkaline buffer solutions should be subjected to compatibility testing. The following values are typical and do not constitute a batch release specification.
| Property | Typical value | Test method |
|---|---|---|
| Appearance | white to off-white powder | visual inspection |
| Polymer base | vinyl acetate-ethylene copolymer | — |
| Protective colloid | polyvinyl alcohol | — |
| Bulk density | 450–650 g/L | ISO 60 |
| Residual moisture | ≤1.5 wt% | internal Karl Fischer method |
| Ash content at 1000 °C | 10–14 wt% | ISO 3451-1 |
| pH of 10 wt% redispersion | 6.0–8.0 | internal pH method |
| Glass transition temperature Tg | −7 °C | ISO 11357-2 |
| Minimum film formation temperature | 0 °C | ISO 2115 |
| Residue on 250 µm sieve | ≤4 wt% | ISO 2591-1 |
On production-scale dry-mix lines, the powder is added together with cement, graded silica sand, calcium carbonate or other fillers, cellulose ether, and dispersing aids. In horizontal ribbon blenders and ploughshare mixers, blending times from 3 to 5 minutes are common; when the polymer powder is added after high-viscosity cellulose ethers, localised agglomeration may occur, and the batch should be inspected for undisclosed lumps before discharge. In machine-applied self-leveling underlayments, the particle size distribution and residual moisture below 1.5 wt% reduce the risk of feeding interruptions in gravimetric and volumetric dispensers. Wet mortar water demand is increased by approximately 2–5 wt% relative to an unmodified control; this increase is formulation-dependent and is influenced by the water-retention agent content. In tile adhesives tested under EN 1348, tensile adhesion after dry, water-immersion, heat-ageing, and frost-thaw storage is determined by the full mix design, substrate, and cement type; the polymer alone does not define a fixed classification. Published data for a default reference formulation is limited outside manufacturer screening programs.
In cementitious self-leveling underlayments evaluated under EN 13813, the addition of VINNAPAS 4240 N at 2–4 wt% modifies failure behaviour from brittle matrix fracture to cohesive polymer bridging. The ethylene unit in the copolymer reduces the glass transition temperature; this keeps the polymer phase deformable at service temperatures down to approximately 0 °C and lowers the probability of edge cracking when the underlayment is subjected to imposed movement. Early flexural strength is dominated by cement chemistry, accelerator type, and water/cement ratio; validation under EN 13892-2 is therefore required because the polymer cannot guarantee a fixed strength class at 24 h. Water absorption after immersion is typically reduced relative to unmodified controls, but published data for this specific configuration is limited; testing under EN 12808-3 for tile adhesives or EN 13892-9 for levelling compounds is recommended when low water uptake is a project requirement. Compared with finer-particle vinyl acetate-ethylene powders, the controlled upper particle size of VINNAPAS 4240 N can reduce dusting and improve flow in discharge hoppers, but it may require slightly longer redispersion time in low-shear mixing units. In rheometer measurements of wet levelling compounds, replacement of 1 wt% of cement with polymer powder can reduce yield stress while increasing plastic viscosity; the material may show shear-thinning behaviour due to polymer chain entanglement in the interstitial water. Application viscosity should be adjusted with high-range water reducers rather than by increasing water content, because excess water extends setting time and reduces final strength. Field experience with continuous mixing pumps indicates that defoamer dosage is required to control air entrainment introduced by the polymer; when air content measured by EN 1015-7 exceeds 6 vol%, surface pinholes and reduced flexural strength have been observed in self-leveling underlayments.
Differences from other products in the same family are concentrated in glass transition temperature, particle size distribution, and anti-caking behaviour. VINNAPAS 4023 N is specified for standard cementitious adhesives where moderate flexibility is acceptable; VINNAPAS 4240 N is specified where additional low-temperature flexibility, wet-substrate adhesion, or improved homogeneity in highly filled mixes is required. Compared with vinyl chloride-containing redispersible powders, the vinyl acetate-ethylene chemistry avoids chlorinated units and reduces the need for external plasticizers. When compared with liquid styrene-butadiene dispersions, the powdered product permits one-component dry-mix production, eliminates freeze-thaw storage constraints, and avoids two-component mixing errors on construction sites. The product is not a direct substitute for epoxy or polyurethane coatings in permanently immersed waterproofing applications; its performance is within cementitious polymer-modified matrices. Direct comparative published data between VINNAPAS 4240 N and other commercial redispersible powders under identical mix designs is limited, so formulation-specific validation under EN 12004, EN 13813, or EN 1504-3 is recommended before final product selection.
Submerged adhesion testing under EN 1348 imposes curing, water immersion, and pull-off loading; polymer-modified tile mortars containing VINNAPAS 4240 N are expected to retain higher tensile adhesion after immersion than unmodified C1 formulas when the dosage exceeds the minimum film-forming concentration. The film forms in capillary pores and at the tile-mortar interface, reducing water ingress while maintaining deformability of the bond line. Hydrolysis resistance is influenced by ethylene content and the polyvinyl alcohol protective colloid; no single standard test covers all exterior exposure categories. For exterior applications, combinations with silane-based water repellents should be validated by EN 1348 and EN 12004 classification because overdosing of silane can retard cement hydration and lower early adhesion. Processing boundaries include pot life: mortars held beyond their open time show reduced film-forming capacity, and ambient temperatures above 30 °C accelerate skinning on the substrate. In high-early-strength cement systems containing ternary binders, rapid moisture depletion may interfere with polymer coalescence; requalification is necessary when such systems are paired with the powder. Pull-off adhesion results under EN 1348 are also sensitive to substrate preparation; concrete slabs used for testing should have a moisture content below 4 wt% and a tensile strength of at least 1.5 N/mm² according to EN 1766. If the substrate is too warm or too dry, rapid water loss from the mortar can prevent continuous film formation at the interface. The product must not be added directly to acidic or oxidising liquid admixtures without dilution because premature coagulation can occur and reduce redispersion efficiency.
