| HS Code | 962380 |
| Product Name | ELOTEX FX4310 |
| Product Type | redispersible polymer powder |
| Chemical Basis | vinyl acetate-ethylene copolymer |
| Physical Form | free-flowing white powder |
| Bulk Density | 400-600 kg/m3 |
| Particle Size | d50 approximately 50 micrometers |
| Ash Content | 10-15% by weight |
| Minimum Film Forming Temperature | 0 °C |
| Glass Transition Temperature | approximately -10 °C |
| Ph Value | 7-8 in aqueous dispersion |
| Protective Colloid | polyvinyl alcohol |
As an accredited ELOTEX FX4310 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ELOTEX FX4310 is supplied in 25 kg multi-ply paper bags with an inner liner, ensuring safe handling and storage. |
| Container Loading (20′ FCL) | 20′ FCL: ELOTEX FX4310 loaded on pallets, shrink-wrapped and protected from moisture, ensuring safe, secure transport. |
| Shipping | ELOTEX FX4310 is a non-hazardous, redispersible polymer powder supplied in sealed bags or bulk sacks. It must be kept dry and protected from moisture, humidity, and direct sunlight during transport. Standard closed road, sea, or rail freight is suitable. Avoid dust inhalation and store in original packaging until use. |
| Storage | Store ELOTEX FX4310 in its original sealed packaging in a cool, dry, well-ventilated area. Keep away from moisture, rain, and direct sunlight. Avoid temperatures above 30°C. Ensure containers remain tightly closed when not in use. Under these conditions, shelf life is typically 6 months from production date. Handle to prevent dust formation. |
| Shelf Life | Shelf life of ELOTEX FX4310 is 6 months from production when stored in original, unopened packaging under dry conditions. |
In dry-mix plants producing C2S1-class cementitious tile adhesives, ELOTEX FX4310 is introduced as a redispersible vinyl acetate–ethylene–vinyl chloride terpolymer powder. The dry-blending step uses a twin-shaft paddle mixer with a high-speed chopper running at 1,400–1,600 rpm, while the main paddle speed is held below 80 rpm to limit heat-induced particle agglomeration. A batch size of 800–1,200 kg typically requires 180–240 s of dry mixing after the final additive addition. Longer mixing may strip the polyvinyl alcohol colloid from the powder surface and reduce redispersibility. The recommended starting dosage is 2.0–4.5 wt% of total dry matter. A representative C2S1 mix contains 35–45 wt% CEM I 52.5 R, 48–58 wt% dried quartz sand with a top cut at 0.5 mm, 0.25–0.40 wt% methylcellulose ether having a dynamic viscosity of 40,000–70,000 mPa·s at 2% aqueous solution, 0.03–0.06 wt% starch ether, and 0.5–1.0 wt% calcium formate. Water demand is adjusted to 22–25 wt%. The wet mortar should show a pot life above 60 min at 23 °C and 50% RH when tested by periodic re-trowelling. Tensile adhesion is evaluated according to EN 1348:2007; after 28 days normal cure and 7 days water immersion, tensile adhesion to concrete must exceed 1.0 MPa for a C2 classification under EN 12004:2007+A1:2012. For S1 flexibility, transverse deformation under EN 12002:2008 must be at least 2.5 mm. The vinyl chloride comonomer in the polymer backbone lowers capillary water absorption in the set mortar without replacing a continuous waterproofing membrane. In terminal applications, the adhesive is spread with a 6–10 mm notched trowel and used under large-format porcelain tile, low-absorption glass tile, and stone on heated screeds. An upper addition of 5.0 wt% is avoided because mortar compressive strength at 28 days may fall below 15 MPa and surface tack may develop in high humidity. Formulators operating in high-humidity regions should pre-dry the powder if stored at relative humidity above 60%.
Waterproofing slurries for balcony and basement tanking commonly use ELOTEX FX4310 in the dry mortar component at 4.0–8.0 wt%. The slurry is mixed with water at a water-to-powder ratio of 0.30–0.40 using a low-speed drill mixer at 400–600 rpm. Higher shear entrains air and destabilizes the redispersed polymer. After 3–5 min standing time, the slurry is re-mixed for 30 s and applied by brush, roller, or stainless-steel trowel in two coats. Each coat is controlled to 0.8–1.2 mm wet thickness. The second coat is applied only after the first has become tack-free but not fully dried. Fresh slurry is protected from direct sun and wind for the first 24 h. Under EN 14891:2017, the cured membrane must show no water penetration at 1.5 bar for 7 days and sufficient crack-bridging capacity for the declared service conditions. The polymer film reduces water vapor transmission slightly, but the membrane remains vapor-open enough for mineral substrates when applied at the specified thickness. Adhesion to pre-wetted concrete is measured at 0.5 MPa or higher under EN 1542:1999. Wet adhesion falls when the concrete surface is saturated, so surface water is removed with compressed air or a sponge until a matte appearance is achieved. Terminal products include liquid-applied waterproofing under ceramic or stone tile in domestic wet rooms, terrace isolation layers, and below-grade tanking on retaining walls before backfilling. A two-component slurry containing this powder is not intended for permanent ponding without a protective tile layer because continuous hydrostatic loading beyond 72 h can swell the cement matrix and reduce peel resistance. Avoid combination with excessive calcium chloride accelerator, which can destabilize the polyvinyl alcohol protective colloid and reduce film coalescence.
Pump-applied calcium sulfate self-leveling underlayments present a different failure mode: the fine aggregate settles before initial set, producing a weak surface crust. ELOTEX FX4310 is dry-blended at 1.5–3.0 wt% to stabilize the slurry and improve adhesion without raising water demand above 26 wt%. A representative binder system combines 25–30 wt% CEM I 52.5 R, 10–15 wt% calcium aluminate cement, and 10–15 wt% anhydrite. The remainder is graded limestone filler. The dry powder is mixed with water in a continuous rotor-stator pump at 500–800 rpm and poured at a flow of 140–160 mm by the 30 mm ring test described in EN 12706:1999. Spread duration is kept below 15 min because the rapid hydration of the calcium aluminate component reduces flow after this window. After 28 days, the screed is tested for compressive strength under EN 13892-2:2002 and tensile bond to concrete under EN 13813:2002. The polymer powder reduces surface porosity and prevents the dry dusty skin that interferes with pressure-sensitive adhesive for LVT and sheet vinyl. Terminal products include smoothing underlayments over hydronic heating pipes, renovation screeds at 3–15 mm thickness, and substrate preparation before wood flooring. When the addition exceeds 3.5 wt%, the set time can extend by 30–60 min and compressive strength may drop below 20 MPa. Below 1.0 wt%, the anti-crust effect is insufficient in high-airflow rooms.
For structural patch repair on concrete, ELOTEX FX4310 is incorporated into a polymer-modified cementitious mortar at 3.0–5.0 wt%. The mix typically comprises 35–45 wt% CEM I 52.5 R, 3–5 wt% silica fume, 50–60 wt% quartz sand graded from 0.1 mm to 1.2 mm, and 0.2–0.5 wt% polycarboxylate superplasticizer. Water is added at 12–16 wt% to produce a slump of 50–70 mm under EN 1015-3:1999. The prepared substrate is roughened by hydrodemolition or grit blasting to a surface profile of 3–5 mm. A cementitious bonding slurry is applied before the repair mortar. Direct pull-off adhesion is measured under EN 1542:1999; with a sound substrate and proper cure, values above 1.5 MPa are typical for PCC mortars. Under EN 1504-3:2005, structural repair products are classified as R4 when compressive strength at 28 days exceeds 45 MPa. Adding more than 5 wt% polymer can reduce compressive strength below this threshold. The polymer film bridges microcracks that form during plastic shrinkage and reduces chloride ingress measured by ASTM C1202-22. The powder alone is not a substitute for concrete cover or dense aggregate grading. Terminal products include overhead spall repairs, column base reinstatement, and edge repairs in parking structures. In deep sections above 40 mm, the repair mortar is placed in layers no greater than 25 mm per pass to prevent air entrapment and polymer film alignment at compacted interfaces.
On hydrophobic expanded polystyrene boards with a density of 15–25 kg/m³, cementitious adhesive mortars for external thermal insulation composite systems are applied by the strip-and-butter method rather than full-bed coverage. ELOTEX FX4310 is introduced at 2.0–4.0 wt% of dry mix. A base coat formulation contains 30–40 wt% CEM I 52.5 R, 40–50 wt% limestone filler with a top cut at 0.25 mm, 5–10 wt% hydrated lime, 0.2–0.4 wt% methylcellulose ether, and 0.2–0.5 wt% polypropylene fibers. Water demand is set to 20–23 wt%; at this consistency the mortar has a wet density around 1.5 kg/L. The base coat is trowelled to 3–5 mm, and a 160 g/m² alkali-resistant glass fibre mesh is embedded in the upper third. After 28 days conditioning, adhesion to EPS is evaluated by a pull-off test. The minimum declared value is 0.08 MPa after dry conditioning under the relevant ETICS assessment document. The low minimum film-forming temperature of the terpolymer, close to 0 °C, supports film coalescence at low ambient temperatures, but cement hydration still requires substrate temperatures above 5 °C for acceptable early strength. The system is finished with a hydrophobic acrylic or silicone rendering. Terminal products include residential and commercial façades, insulated balcony returns, and retrofitted wall insulation on masonry or concrete substrates. At dosage above 5 wt%, the base coat may retain water and delay mesh embedding, causing visible mesh pattern under raking light.
Tile grouts for underfloor heating circuits are formulated with ELOTEX FX4310 at 1.0–3.0 wt% to retain flexibility during repeated thermal expansion. A CG2W-class grout under EN 13888:2009 contains 30–40 wt% white CEM I 52.5 R, 40–50 wt% calcium carbonate filler 0.05–0.1 mm, 5–10 wt% fine quartz sand, 0.05–0.20 wt% cellulose ether, and 0.2–0.6 wt% inorganic pigments. The powder is mixed with water at 20–25 wt% and pressed into joints with a rubber-faced trowel. After 15–20 min, the surface is washed with a damp sponge to remove smears. Early washing causes polymer film lift and weakens joint edges. The cured grout is tested for water absorption after 30 min and 240 min under EN 12808-5:2008. Flexural strength is measured under EN 12808-3:2008. Polymer modification typically reduces brittleness but may lower 7-day compressive strength relative to unmodified grout. The terminal use is floor tile grouting over electric or hydronic heating systems and exterior tiled walkways where thermal movement exceeds 1 mm/m. Addition above 3.5 wt% can darken the grout surface after cleaning and increase tack, while below 0.8 wt% the crack-bridging effect is negligible.
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ELOTEX FX4310 is supplied as a free-flowing, water-redispersible polymer powder based on a vinyl acetate–ethylene–vinyl chloride terpolymer. The grade is manufactured for cementitious dry-mix modification. The polymer architecture combines ethylene co-monomer for low-temperature flexibility, vinyl acetate for adhesion, and vinyl chloride for reduced water uptake. The product is used in thin-bed tile adhesives, cementitious waterproofing slurries, repair mortars, and selected self-leveling underlayments. Packaging is normally moisture-resistant paper sacks with an inner polyethylene liner, typically supplied in 25 kg units. Release documentation for each lot records residual moisture, ash content, sieve residue, and pH. Specification ranges include a bulk density of 450 g/L to 650 g/L, a maximum residue of 2% on a 315 µm sieve, residual moisture below 1.5%, and an ash content from 10% to 14% after ignition at 1000 °C. The pH of a 50% aqueous dispersion is typically 6 to 8. The powder has a low minimum film formation temperature, near 0 °C, which permits film coalescence at low ambient temperatures. These values are typical commercial ranges; the current certificate of analysis and the safety data sheet control the specification for each delivery.
In cementitious binders, ELOTEX FX4310 re-disperses under mechanical mixing to form a polymer latex within the mortar pore solution. The vinyl acetate units provide adhesion to polar substrates, ethylene segments reduce the glass transition temperature and improve flexibility, and the vinyl chloride comonomer reduces water uptake. After mixing, the polymer particles coalesce as cement hydration consumes free water, forming a continuous film around hydration products and aggregate grains. This film bridges microcracks and improves adhesion to dense surfaces such as glazed ceramic tile, existing concrete, and waterproofing base coats. The polymer network also contributes to rheological stability and may reduce open-time losses caused by rapid water absorption into porous substrates.
The crack-bridging performance of a polymer-modified mortar is controlled by the deformation capacity of the film, the degree of film coalescence, and the distribution of polymer domains within the cement matrix. A vinyl acetate–ethylene polymer with sufficient ethylene segment content remains flexible at the curing temperature and prevents the hardened mortar from failing as a brittle ceramic-like composite. In ELOTEX FX4310, the chlorinated comonomer shifts this balance toward lower water absorption while preserving enough elongation for crack-bridging under service loads. The minimum film formation temperature is reported near 0 °C; this allows film development at lower site temperatures than conventional higher-Tg vinyl acetate–ethylene powders, which can remain particulate and fail to contribute to toughness if the substrate temperature falls during application.
Film formation is not instantaneous. The tensile adhesion development measured by EN 1348 depends on cement hydration and the gradual coalescence of the polymer. Early strength should be tracked separately because the polymer film contributes flexural tolerance but does not replace the primary cementitious hydration bond. The redispersed polymer must remain stable at pH above 12.5 during the first minutes of mixing. The protective colloid, typically polyvinyl alcohol, provides steric stabilization; the vinyl acetate units undergo limited alkaline saponification, but the copolymer structure is designed to resist coagulation. The film migration kinetics in the drying mortar are controlled by capillary water movement to the surface. If the mortar surface is sealed too early, film accumulation at the interface can reduce tensile adhesion. Free-film tensile tests according to ASTM D638-14 can be run on a drawdown of 0.2 mm after conditioning at 23 °C and 50% relative humidity for 7 days. In such tests, the film elongation and tensile strength provide comparative data for lot evaluation, but the values do not directly predict composite mortar strength because the polymer in mortar is constrained by mineral boundaries and pore structure.
Below 5 °C, cement hydration slows; the film formation contribution of ELOTEX FX4310 becomes more important for early surface integrity, but it does not accelerate cement setting. Mortars should be protected from freezing for at least 24 h, and adhesion development should be confirmed before opening the installation to foot traffic or tile loading.
On a twin-shaft compulsory mixer with a batch size of 500 kg, dry blending of cement, aggregate, and ELOTEX FX4310 for 60 s to 120 s produces a sufficiently uniform powder distribution. The powder should be added with the cement or after aggregate pre-blending; direct addition to the mixing water is not advisable because high local shear can generate foam and reduce the efficiency of the protective colloid. Water is then introduced over 30 s to 45 s, and mixing continues for 120 s. Extended mixing beyond 300 s can increase air entrainment and paste viscosity, leading to shorter trowelling open time and a less controlled air-void system. In large batches, discharge should occur within 10 min of final water addition to avoid early surface skinning in hot or dry conditions.
Addition rates in cementitious tile adhesives typically range from 1.5% to 4.0% by total dry mortar weight, depending on the cement type and aggregate packing. At 3.0% addition, the water demand may increase by 2% to 4% relative to the unmodified control; this increase must be balanced with a superplasticizer or aggregate moisture adjustment. Because sand surface area and cement alkali content vary, the optimum polymer loading can shift by 0.3% to 0.5%. Production trials should compare slump retention, wet density, air content, and tensile adhesion before locking the formula.
Rheological response should be logged with a rotational viscometer or mortar rheometer. The redispersed dispersion viscosity can be checked at 20 rpm using a Brookfield LV viscometer; the acceptable range is established by the producer for the specific application and spindle. In production, fluctuations in mixing time, water dosage, and admixture sequence often have a larger effect on viscosity than a polymer addition change of 0.2%. Therefore, process logs should record wet density, air content, slump, and mortar temperature at discharge. Air content measured by the pressure method should remain within the range selected for the application; excessive air can reduce compressive strength and tensile adhesion, while insufficient air may reduce workability and freeze-thaw resistance.
At polymer additions below 2.0% by dry mass, a conventional vinyl acetate–ethylene powder may not deliver adequate crack-bridging for demanding tile adhesive work, especially after water immersion or heat ageing. ELOTEX FX4310 is positioned to address this edge by combining flexible ethylene segments with the hydrophobic vinyl chloride comonomer. This permits formulators to target tensile adhesion values at or above 1.0 N/mm² after the conditioning cycles described in EN 1348 while retaining a measurable open time. The following test matrix is used as a screening framework; actual values are batch-specific and must be generated with the intended cement and aggregate.
| Property | Test method | Conditioning | Screening target |
|---|---|---|---|
| Tensile adhesion strength after dry storage | EN 1348 | 28 days at 23 °C / 50% RH | ≥ 1.0 N/mm² |
| Tensile adhesion strength after water immersion | EN 1348 | 21 days dry + 7 days water immersion | ≥ 1.0 N/mm² |
| Tensile adhesion strength after heat ageing | EN 1348 | 14 days at 23 °C + 14 days at 70 °C | ≥ 1.0 N/mm² |
| Extended open time | EN 1346 | Tiles applied after 30 min, tested at 28 days | ≥ 0.5 N/mm² |
| Deformability | EN 12002 | Conditioned to 28 days in controlled environment | S1: 2.5 mm to 5 mm; S2: ≥ 5 mm |
In contrast to an unmodified mortar or a low-ethylene VAE grade, ELOTEX FX4310 typically shows higher retention of tensile adhesion after water immersion, but the magnitude depends on the accompanying waterproofing package. A hydrophobic admixture at 0.2% to 0.5% by mass may further reduce water uptake as measured by EN 12808-5, but overdosing can depress adhesion by creating a water-shedding layer at the tile–adhesive interface. The combined effect of polymer and hydrophobic admixture must therefore be validated across the full conditioning cycle rather than inferred from a single dry-aged result.
The deformability classification according to EN 12002 is often S1 or S2 depending on the total polymer content and the cement-to-aggregate ratio. For a high-polymer formulation intended for crack-bridging waterproofing layers, the S2 class may be achievable, but the result is strongly influenced by film continuity and by the absence of premature surface drying. If the wet film dries too rapidly, deformability can drop from the expected class; wet-curing for the first 48 h is therefore critical in hot or windy conditions.
In waterproofing slurries and flexible mortars, ELOTEX FX4310 is compared with pure vinyl acetate–ethylene powders and with alternative vinyl acetate–ethylene–vinyl chloride grades that have different ethylene contents. The principal difference is the balance between film flexibility and water resistance. A standard vinyl acetate–ethylene powder may provide equivalent dry adhesion but can show a more pronounced loss of tensile strength after immersion, whereas an all-acrylic powder may give higher elongation but can be less compatible with high-pH cement paste and may increase formulation cost. The vinyl chloride comonomer in ELOTEX FX4310 reduces the water-uptake coefficient in the cured mortar and improves adhesion retention under wet conditions, but it does not eliminate the need for a continuous barrier membrane in submerged or hydrostatic service. Published data for this specific configuration is limited, so direct substitution from another redispersible powder should be based only on a parallel test campaign using the production concrete substrate and the specified water exposure profile.
Because the ethylene component provides intrinsic flexibility, the terpolymer avoids the long-term migration and embrittlement that can occur when a liquid external plasticizer is used in a solvent-borne polymer film. This distinction is relevant in thin-bed adhesives installed over heated screeds or in exterior waterproofing layers that experience repeated thermal cycling. Under sustained heat exposure, the cementitious matrix may still crack if the substrate moves beyond the elongation limit of the mineral-polymer composite, but the polymer film delays the onset of visible cracking by redistributing stress at the crack tip.
The powder is stable in alkaline cementitious systems. It is not intended for solvent-borne formulations or for polymer-only films applied without a cementitious or gypsum binder. Mix water containing strong oxidizing agents or solvent residues should be avoided because these species can interfere with the protective colloid and reduce redispersion. High addition levels above 5.0% by dry mortar weight are generally unnecessary and may increase air entrainment, water demand, and formulation cost without a proportional gain in crack-bridging. Below 1.5%, the improvement in wet adhesion and open time may become statistically indistinguishable from process variability in some production mortars.
ELOTEX FX4310 should be stored in original, unopened bags at temperatures below 25 °C and relative humidity below 60%. High humidity can cause moisture uptake at the bag surface, producing partial film formation or lumping that reduces redispersibility. In tropical or coastal warehouses, pallets should be kept off the floor and away from open doors; opened bags should be consumed within the same shift or resealed with moisture-excluding packaging. Under these conditions, a shelf life of 12 months from the production date is typical, but the manufacturer lot-specific recommendation controls. Bags that have been exposed to moisture or that show hard agglomerates should be quarantined and tested for sieve residue before use.
The powder can generate dust during charging; local exhaust ventilation and particulate respirators should be used to control exposure. The mixer area should be maintained at a slight negative pressure where practical, and dust collection systems should be specified for the 315 µm fraction as well as for respirable fines. In automated plant systems, rotary feeders and lance injectors should be configured to avoid dead zones where the powder can accumulate and hydrate during washdown cycles.
In formulations where the polymer film is exposed to continuous water contact, actual performance must be verified under EN 14891 or the relevant national standard for liquid-applied waterproofing products. Published data for this specific configuration is limited; substitution from another redispersible powder should not be based solely on the nominal polymer addition level.
