| HS Code | 973205 |
| Product Name | ELOTEX FL2280 |
| Product Type | Redispersible polymer powder |
| Chemical Basis | Vinyl acetate-ethylene (VAE) copolymer |
| Physical Form | White free-flowing powder |
| Bulk Density | Approximately 400-600 kg/m³ |
| Particle Size | Fine powder, typically 95% passing a 400 µm sieve |
| Ph Value | 6.0-8.0 in aqueous dispersion |
| Redispersibility | Excellent redispersibility in water |
| Minimum Film Forming Temperature | Approximately 4°C |
| Glass Transition Temperature | Approximately -5°C to 5°C |
| Main Function | Binder for cementitious and gypsum-based dry mix mortars |
| Key Performance | Improves adhesion, flexibility, cohesion and workability |
| Typical Applications | Tile adhesives, self-leveling compounds, render and skim coats |
As an accredited ELOTEX FL2280 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ELOTEX FL2280 is supplied in 20 kg multi-layer paper bags with polyethylene lining, ensuring safe handling and moisture protection during transport. |
| Container Loading (20′ FCL) | ELOTEX FL2280 is loaded as a 20′ FCL, shrink-wrapped palletized bags, packed securely to prevent moisture and damage. |
| Shipping | ELOTEX FL2280 is supplied as a free-flowing polymer powder in sealed multi-layer bags, typically 25 kg, on shrink-wrapped pallets. Ship as non-hazardous dry cargo. Protect from moisture, rain, and humidity during transport. Store in a clean, dry container, avoid excessive heat, and handle carefully to prevent bag damage. |
| Storage | Store ELOTEX FL2280 in its original, sealed packaging in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and moisture. Protect from humidity to prevent clumping or deterioration. Keep containers tightly closed when not in use. Follow standard powder handling practices to avoid dust accumulation. Use within the manufacturer’s stated shelf life. |
| Shelf Life | Shelf life is 12 months from production date when stored unopened in original packaging, under dry, cool conditions. |
In flexible cementitious tile adhesive dry-mix production, ELOTEX FL2280 is incorporated at 2.0–5.0 wt% of the total dry blend when the target classification is EN 12004 C2S1 or C2S2, particularly for large-format porcelain tiles installed over heated screeds and on exterior balconies. The powder is a vinyl acetate–ethylene copolymer redispersible in water under alkaline cement hydration conditions. Its low glass transition temperature, below 0 °C, permits coalesced polymer films to retain elastic elongation around hydration cores and at tile-to-substrate interfaces. In production, the powder is dry-blended with ordinary Portland cement, graded silica sands, cellulose ether, and calcium formate in a horizontal ploughshare mixer at 200–400 rpm for 4–6 min; batch-to-batch variation in tensile adhesion is reduced when the powder is pre-blended with fine limestone filler before cement charging. Site mixing uses a low-speed drill mixer at 300–500 rpm with water-to-dry-mix ratios of 0.20–0.25 to achieve high initial grab on low-porosity porcelain and to maintain pot life above 2 h. The terminal products are C2S1 pasty tile adhesives and C2S2 high-deformation floor adhesives that are tested according to ISO 13007-1, EN 12004, and EN 1348 tensile adhesion after dry, water-immersion, and heat-age storage. At addition rates above 5.0 wt%, open time and deformability generally increase, but surface tackiness and slump can become limiting on vertical large-format installations; below 2.0 wt%, the S1 deformation class may not be reached after water immersion ageing.
In two-component flexible cementitious waterproofing slurries, crack-bridging retention after water immersion is often controlled by the polymer film resistance to re-emulsification and by the cement matrix modulus. ELOTEX FL2280 is combined with the dry component at 3.0–6.0 wt% of the total powder mass, while the liquid component contains water and a styrene-acrylate or VAE dispersion at a polymer/cement ratio typically between 0.35 and 0.45. The low-temperature film-forming behaviour of the powder reduces the mortar modulus and permits elongation across induced cracks before membrane rupture. Site batching for below-tile waterproofing, balcony tanking, and wet-room tanking slurries uses a paddle mixer at 400–600 rpm; the powder is first dispersed in clean water before the remaining dry component is added to avoid lump formation. Application is carried out with a brush, roller, or notched trowel in two coats, with wet-film thickness limited to 1.5–2.0 mm per coat to prevent differential drying and surface skinning. The finished membrane is evaluated according to EN 14891 for liquid-applied water-impermeable products beneath ceramic tiling, with crack-bridging tested by the method referenced in EN 1062-7 and direct tensile adhesion measured to EN 1542. Published data for crack-bridging width above 1.5 mm with this powder in low-thickness CE-marked products is limited; certification tests must be repeated for each mix design and substrate category. The operational boundary is substrate temperature below 5 °C, where film formation is retarded and water resistance after early immersion may be compromised.
Base coats for external thermal insulation composite systems require durable adhesion to expanded polystyrene or mineral wool and to embedded glass-fibre mesh under hygrothermal stress. ELOTEX FL2280 is added at 2.5–4.5 wt% of the dry-mix mass in ETICS adhesive-and-base-coat formulations that are assessed under EAD 040083-00-0404 and the earlier ETAG 004 framework. The polymer contributes not only initial wetting of expanded polystyrene but also deformability that limits crack propagation at mesh edges during heat-rain and freeze-thaw cycles. Production of the dry mortar is performed in continuous or batch mixers in which the powder, white or grey cement, limestone filler, silica aggregates, cellulose ether, and fibre are mixed at low shear before bagging; site water demand is commonly 5.5–6.5 L per 25 kg bag for adhesive mortar consistency. The terminal product is used as a bonding adhesive under insulation boards and as a reinforcing base coat into which a 160 g/m² glass-fibre mesh is embedded. The critical control point is tensile adhesion to expanded polystyrene after conditioning; values below 0.08 MPa after the required ageing cycles indicate cohesive failure in the insulation and require reformulation rather than increased mesh weight. Excessive polymer addition above 4.5 wt% can extend open time but may reduce early grab of insulation boards and increase material cost without proportional improvement in hygrothermal adhesion retention.
At addition levels between 1.5 wt% and 3.0 wt% on total dry blend, ELOTEX FL2280 alters the rheological profile of cementitious and calcium sulfate-based self-smoothing underlayments intended for renovation under PVC, vinyl, and engineered wood flooring. In these systems the powder reduces bleed water, promotes adhesion to concrete and gypsum substrates, and improves flexural toughness so that thin layers below 10 mm do not crack at door thresholds or floor heating pipes. Dry-mix production uses a twin-shaft paddle mixer or conical screw mixer at low shear; site application is performed with water-to-dry-mix ratios of 0.20–0.24, pump-assisted discharge, and a spiked roller to release entrained air. Terminal products are self-leveling underlayments and pumpable screeds evaluated according to EN 13813, with flow behaviour commonly measured by flow-ring spread and adhesion by direct pull-off. Because the low-Tg polymer reduces early compressive strength development, accelerating admixtures in ternary binder systems require rebalancing when ELOTEX FL2280 is introduced. Published data for this specific powder in fast-setting calcium aluminate underlayments is limited; screening trials are required to confirm surface hardness, drying shrinkage, and adhesion after 28 days.
ELOTEX FL2280 is added at 1.0–3.0 wt% to gypsum joint fillers and veneer plasters to lower surface water absorption and improve adhesion under ASTM C474 or EN 13279-1 test regimes. Sanding resistance increases as polymer content rises; formulators therefore keep the addition below 3.0 wt% and adjust workability with dispersants rather than additional polymer. The terminal products are hand-applied skim coats and jointing compounds for drywall finishing, where smooth sanding and low surface water absorption are both required before paint application.
Polymer modification of hand-applied concrete repair mortars targeting EN 1504-3 class R2 and R3 properties is another downstream use in which ELOTEX FL2280 is titrated between 2.0 wt% and 5.0 wt% of the dry formulation. The addition increases adhesion to prepared concrete and reduces elastic modulus mismatch between repair layer and substrate, while lowering compressive strength relative to unmodified cement mortar. Surface preparation by grit blasting or mechanical scarification is required before trowel application, and curing follows the EN 1542 direct pull-off test requirement for adhesion verification. Terminal products include vertical repair mortars, fairing coats, and edge-restoring mortars for spalled concrete, but the powder is not suitable for R4 structural repairs because higher polymer dosage may push compressive strength below the class threshold. The operational boundary is a substrate moisture condition exceeding 4% by weight, where polymer film formation can be delayed and early adhesion development may be reduced.
Flexible tile grouts for underfloor heating and large-format tiling incorporate ELOTEX FL2280 at 1.0–3.0 wt% of the total dry blend to control drying shrinkage and improve adhesion to tile edges. The powder is dry-mixed with white or grey cement, fine silica, calcium carbonate, pigments, and shrinkage-compensating agents before bagging; site mixing uses a low-speed mixer to a smooth slurry and application is performed with a rubber float into joints up to 8 mm wide. The terminal products are cementitious grouts evaluated under EN 13888 and ISO 13007-4, with abrasion resistance measured by the method described in EN 12808-2. High polymer addition above 3.0 wt% reduces abrasion resistance and can make subsequent joint cleaning more difficult, so the upper limit is set by mechanical surface performance rather than shrinkage control alone.
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ELOTEX FL2280 is a redispersible polymer powder based on a vinyl acetate-ethylene (VAE) copolymer, produced by emulsion polymerisation followed by spray drying in the presence of a poly(vinyl alcohol) protective colloid. The grade is supplied as a white free-flowing powder for dry-mix mortars and is positioned for cementitious and calcium sulfate based self-levelling underlayments, repair mortars, and thin-bed patching compounds. The FL2280 designation identifies a specific VAE redispersible powder within the ELOTEX portfolio; the suffix distinguishes it from adjacent grades with different protective colloid packages and ethylene distributions. The ethylene comonomer content reduces the glass transition temperature into a low-temperature range and lowers the minimum film-forming temperature to approximately 0 °C, permitting coalescence at ambient application temperatures without coalescing solvents. Representative technical data from manufacturer literature list bulk density at 400–600 g/L, sieve residue on 400 µm of not more than 2 %, residual moisture of not more than 1.0 %, and a 10 % aqueous dispersion pH in the range 6.0–8.0. These figures are provided as typical guidance rather than contractual batch-release limits, and the certificate of analysis governs individual deliveries. The product is intended for factory pre-blending into dry-mix formulations; it is not applied as a sole binder. Its dry form allows long-term storage and precise metering in automated plants, while water addition on site converts the polymer into a film-forming latex that reinforces the hardened cementitious matrix.
Redispersibility of ELOTEX FL2280 depends on the interaction between the poly(vinyl alcohol) colloid, the particle surface charge, and the ionic strength of the mixing water. In powder form, primary latex particles are agglomerated and embedded in the colloid matrix. During mortar mixing, water dissolves the colloid and releases latex particles, but in cementitious environments the same water carries Ca²⁺, OH⁻, SO₄²⁻, and aluminate species. Poly(vinyl alcohol) can bind Ca²⁺ and borate-type species; this interaction can either stabilise or flocculate the latex depending on pH and colloid molecular weight. High shear is necessary to complete rewetting, but excessive shear can introduce air and heat. A laboratory dispersion of 10 g powder in 90 g deionised water at 20 °C, stirred at 1500–2000 min⁻¹, typically reaches a monomodal particle-size distribution comparable to the original latex within 60–120 s. In a cement filtrate solution, redispersion is faster but less stable; latex particles can adsorb onto cement grains and alter hydration kinetics. The colloid content in ELOTEX FL2280 is proprietary, but the formulation is intended to tolerate the high pH of fresh cement while retaining film coalescence. Users should not pre-disperse the powder in acidic water below pH 5, because hydrolysis of vinyl acetate moieties accelerates and the protective colloid can lose water solubility.
On production-scale dry-mix lines, ELOTEX FL2280 is introduced after the aggregate and cement fractions have been homogenised. A twin-ribbon blender of 3000 L working capacity with a plowshare chopper at 120–180 m/min tip speed can distribute the polymer to a dosage coefficient of variation below 1 % within 180–300 s; mixing beyond 10 min is generally avoided because frictional heat can soften the poly(vinyl alcohol) surface and increase sieve retention. Field data from automated filling lines indicate that bulk density variation of ±30 g/L across production campaigns does not create sack-weight error when filling is weight-based, but volumetric auger systems should be recalibrated after each 1000 kg silo discharge interval. In cementitious self-levelling underlayments, ELOTEX FL2280 is commonly added at 2.0–5.0 wt% of total dry mix. At 2.0 wt%, the polymer improves tensile adhesion and reduces edge feathering, but discontinuous film formation may limit crack-bridging in layers below 3 mm. At 5.0 wt%, wet viscosity increases and air content can rise by 1–3 volume %; a polyether siloxane defoamer at 0.05–0.15 wt% on dry mix is normally required. Flow retention is assessed by ASTM C1708/C1708M. Pump-applied formulations frequently target an initial flow of 140–160 mm after 5 min and retained flow after 30 min of at least 80 % of the initial diameter. Water demand for a given flow class typically increases by 0.5–1.5 % absolute when the powder is increased from 2 wt% to 5 wt%; this shift must be accounted for in dry-mix design to avoid strength loss. Published data for this specific configuration is limited, so field-scale validation is required for any change in aggregate source or ambient humidity.
Rheology is not fully described by flow diameter alone. Comparable VAE-based self-levelling compounds often show shear-thinning behaviour with a Herschel-Bulkley yield stress below 50 Pa and plastic viscosity in the range 5–15 Pa·s at 20 °C, measured using a rotational viscometer with a vane rotor. These values shift with filler surface area and superplasticizer type; published data for this specific configuration is limited. Polycarboxylate ether superplasticizers can compete with the poly(vinyl alcohol) colloid for particle surfaces, causing a temporary viscosity increase if the polycarboxylate ether is added to the powder fraction rather than to the mixing water. In field batching, the superplasticizer should be introduced with the water phase or after the polymer has fully wetted, not dry-blended in the same premix step.
ELOTEX FL2280 differs from older high-Tg EVA redispersible powders primarily through its ethylene insertion, which reduces the glass transition temperature into the low- or sub-zero range. Higher-Tg EVA powders often require coalescing solvents or elevated substrate temperatures to form a continuous film below 15 °C; ELOTEX FL2280 can coalesce on a damp screed at surface temperatures near 10 °C because the minimum film-forming temperature is low. Compared with acrylic redispersible powders, the VAE chemistry generally provides stronger adhesion to damp concrete and lower water absorption after film formation, but unpigmented VAE films have lower UV resistance and are therefore used almost exclusively in indoor systems. Compared with styrene-butadiene rubber powders, ELOTEX FL2280 does not introduce styrene-related odour or yellowing in alkaline matrices. The tensile adhesion of a cementitious underlayment to a concrete substrate is tested according to EN 1542. Formulations with ELOTEX FL2280 at 4.0 wt% are typically designed to exceed 0.8 N/mm² pull-off strength for internal bonded screeds, although actual results depend on substrate tensile strength and moisture condition. Published data for this specific powder in a complete self-levelling formula is limited; the threshold is treated as a design target rather than a product guarantee. Compared with lower-ethylene VAE grades, ELOTEX FL2280 trades a portion of compressive strength for elongation and crack-bridging ability. This profile fits floor screeds where dimensional stability and crack resistance control failure modes more than maximum compressive strength.
Calcium sulfate screeds based on anhydrite or alpha-hemihydrate have a different ion environment from Portland cement. The polymer is typically added at 3.0–5.0 wt% on total dry mix. Above 5 wt%, the elastic component of the wet mix can generate a surface skin before the mix has completely wetted the substrate. The defect appears as glossy islands that may delaminate after hardening. The threshold is not solely polymer-dependent; it is modified by the water/solids ratio, the soluble calcium sulfate content, and the filler particle-size distribution. In a full-scale batch using a 400 L intensive mixer, increasing ELOTEX FL2280 from 4.5 wt% to 5.5 wt% increased initial flow by 10–15 mm but reduced the 30 min flow retention below 60 % when water dosage was held constant. The hardened screed developed acceptable compressive strength but showed a polymer-rich surface layer with reduced scratch resistance. Formulators should not rely solely on compressive strength; EN 13813 requires simultaneous verification of flow, flexural strength, and indentation resistance for self-levelling screeds. Flexural and compressive strength are assessed under EN 13892-2; surface indentation resistance is evaluated within the EN 13892 test series. If ELOTEX FL2280 exceeds 5 wt%, a polycarboxylate ether water reducer may need to be reduced by 0.10–0.20 wt% to compensate for increased water retention, and a defoamer with low dynamic surface tension should be introduced before final blending. The processing window for water temperature is also narrow: below 5 °C the polymer cannot coalesce during early drying, and above 35 °C surface evaporation can exceed bleeding water supply, causing plastic shrinkage cracks.
In film formation, ELOTEX FL2280 coalesces when capillary pressure deforms the latex particles as free water evaporates. The result is a continuous polymer network at aggregate/paste interfaces, but the film remains phase-separated from the inorganic hydration products. The tensile elongation of the polymer film is higher than the surrounding mortar; this allows microcrack bridging up to film-thickness dependent limits. In notched three-point bending tests of self-levelling mortars, the addition of 4 wt% ELOTEX FL2280 has been reported to increase flexural strength by 15–30 % relative to the unmodified mortar, with a corresponding decrease in compressive strength of 5–15 %. These ranges are representative of VAE redispersible powder systems; published data for this specific configuration is limited. The polymer also reduces capillary water absorption measured according to EN 1015-18, with reductions of 20–50 % relative to unmodified control under test conditions. These gains are sensitive to cure humidity and the completeness of film coalescence.
Storage is constrained by the hydrophilic protective colloid. Unopened bags should be stored at temperatures below 30 °C and relative humidity below 65 %. At relative humidity above 80 %, poly(vinyl alcohol) absorbs atmospheric moisture and the powder can cake; the resulting lumps may not redisperse completely. Bags opened at the mixer should be consumed within 24 h or resealed under dehumidified conditions. Silo storage in high-humidity regions requires conveying and headspace air with a dew point below −20 °C. The powder is combustible as a dust-air mixture; explosion protection should follow EN 14491 and EN 1822 for dust collector filter standards. Acidic vapours should be excluded from storage areas because acid-catalysed hydrolysis of the protective colloid reduces redispersibility. In original unopened packaging, shelf life is typically 12 months from the production date when stored at ≤25 °C and ≤65 % RH.
Regulatory documentation is available through the safety data sheet and EU REACH Regulation (EC) No 1907/2006. The powder is not classified as hazardous under CLP; however, airborne dust exposure should be controlled to the national occupational exposure limit for inert or nuisance dust. Volatile organic compound content is low because no coalescing solvent is present. Indoor flooring compounds formulated with ELOTEX FL2280 may be assessed under ISO 16000-6 for VOC emissions if EMICODE certification is required. The grade contains no intentional boron compounds and can be used in formulations assessed under RoHS Directive 2011/65/EU when cured into flooring underlayments in electrical rooms. Direct food contact is outside the intended use; the product is not FDA 21 CFR listed. These regulatory statements are boundary conditions, not a substitute for final article testing.
