| HS Code | 156983 |
| Product Name | ELOTEX FL3210 |
| Chemical Base | Vinyl acetate-ethylene (VAE) copolymer |
| Physical Form | Free-flowing powder |
| Color | White to slightly off-white |
| Protective Colloid | Polyvinyl alcohol (PVA) |
| Bulk Density | Approx. 500 kg/m³ |
| Moisture Content | ≤ 1% |
| Ash Content | Approx. 10% |
| Sieve Residue | ≤ 2% on 500 μm screen |
| Ph 10 Aqueous Dispersion | 7–9 |
| Minimum Film Forming Temperature | Approx. 0 °C |
| Redispersibility | Forms a stable film with excellent redispersibility in water |
| Storage | Shelf life 12 months if stored in cool, dry conditions |
As an accredited ELOTEX FL3210 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ELOTEX FL3210 is supplied as a free-flowing white powder in 25 kg multilayer paper bags with an inner polyethylene liner. |
| Container Loading (20′ FCL) | ELOTEX FL3210 loaded as 20′ FCL in dry container, palletized, secured properly, protected from moisture, ensuring safe transport. |
| Shipping | ELOTEX FL3210 is a non-hazardous polymer powder, shipped in moisture-barrier lined paper bags on shrink-wrapped pallets. Transport in dry, covered containers to prevent humidity uptake and physical damage. Avoid exposure to rain, condensation, or excessive heat. No special dangerous goods classification applies under normal shipping conditions. |
| Storage | Store ELOTEX FL3210 in its original, sealed packaging in a cool, dry environment. Protect from moisture, rain, and direct sunlight. Maintain moderate temperatures; avoid frost and excessive heat. Keep containers tightly closed when not in use. With proper storage, the product typically retains its quality for several months. Always follow manufacturer guidelines. |
| Shelf Life | Store dry, in unopened original packaging. Shelf life is 12 months from production date under recommended storage conditions. |
In cementitious tile adhesive systems for large-format porcelain and low-porosity vitrified tiles, the dry-mix composition is built around a CEM I 52.5 R or CEM II/A-LL 42.5 R binder with graded silica sand and limestone filler. ELOTEX FL3210, a vinyl acetate-ethylene redispersible polymer powder, is metered at 2.5–4.0 wt% of total dry mortar for C2S1 deformability targets; C2 non-deformable formulations are typically adjusted to 1.5–2.5 wt%, while C1 products may operate at 1.0–1.5 wt% when polymer film formation is limited to early open time extension. The governing specification is EN 12004-1:2017, with pull-off adhesion tested under EN 1348 after water immersion, heat ageing, and freeze-thaw cycling, and transverse deformation classified according to EN 12002:2015. On a production twin-shaft batch mixer with a usable volume of 2,000 L, the low-density powder is introduced after the binder and filler components but before final homogenization; blending beyond 15 min at high shear has been observed to generate static charge, causing powder agglomeration on the mixer walls and reducing redispersibility in subsequent wet mixing. Powder redispersibility is checked by stirring 100 g powder into 400 g water at 20 °C; sieve residue on a 125 µm screen should remain below 0.5 wt%. The site mixing procedure uses a low-speed paddle mixer at 300–400 rpm for 60–90 s with water at 18–22 °C; after a 10 min maturing period, re-mixing without additional water stabilises the wet mortar. Field failures traced to water addition below 6.0 L per 25 kg bag include polymer-rich streaks and pull-off values below 0.5 N/mm² after 30 min open time. Terminal outputs are C2, C2TE, and C2TE S1 adhesives for porcelain, glass mosaic, and natural stone formats up to 3600 cm², as well as two-component latex-admixed adhesives for non-porous tiles.
| EN 12004-1 classification target | ELOTEX FL3210 dosage (wt% dry basis) | After freeze-thaw cycling failure mode | Governing test method |
|---|---|---|---|
| C1 | 1.0–1.5 | Interface delamination with limited polymer film | EN 12004-1:2017 |
| C2 | 1.5–2.5 | Mixed adhesive/cohesive, pull-off failure near 1.0 N/mm² | EN 1348 |
| C2S1 | 2.5–4.0 | Cohesive failure within polymer-modified mortar, deformation ≥ 2.5 mm | EN 12002:2015 |
The transition from a rigid cementitious matrix to a polymer-modified flexible membrane is governed by the film-forming capacity of the VAE copolymer after hydration water has been consumed and free water evaporates. In one-component flexible cementitious waterproofing slurries, ELOTEX FL3210 is dry-blended at 3.5–5.5 wt% of the powder component; two-component systems containing an additional liquid polymer dispersion may reduce the dry powder demand to 2.0–3.0 wt%. The applicable compliance framework is EN 14891:2017, under which liquid-applied water-impermeable products are assessed for crack-bridging ability and water tightness; for exterior balcony and basement specifications, products are commonly classified as flexible under dynamic loading when crack-bridging capacity remains above 0.75 mm. Production of the powder blend uses a horizontal paddle mixer with an L/D ratio of 2.5:1, and the powder is added after cement and fine sand to limit electrostatic agglomeration. At the job site, mixing is performed at 400–600 rpm for 2–3 min until the slurry has a viscosity of 35,000–55,000 mPa·s; the material is then applied by brush or trowel in 1.0–2.0 mm layers with a 120–160 g/m² alkali-resistant glass mesh embedded in the first coat. Raising the powder dosage above 6 wt% reduces water vapour permeability and may seal the capillary network before cement hydration is complete, increasing the risk of delamination from permanently damp substrates; below 3 wt%, crack-bridging capacity under EN 14891 can fall below 0.75 mm, making the membrane unsuitable for movement joints. Terminal product types include one-component flexible waterproofing slurries for wet rooms and balconies, two-component polymer-cement coatings for basements, and reinforced two-coat systems for intermittent water immersion.
Calcium aluminate-rich self-leveling underlayments present a hydration regime dominated by rapid ettringite formation and high early heat release, which can destabilise polymer film formation if the powder does not redisperse rapidly in the low-water environment. ELOTEX FL3210 is metered at 1.0–2.5 wt% of total dry mix in ternary binder systems of calcium aluminate cement, calcium sulfate, and ordinary Portland cement; the lower band is reserved for cement-rich formulations where early compressive strength must exceed 20 MPa at 24 h, while the upper band supports surface cohesion and reduced crusting in thin layers. The applicable product standard is EN 13813:2002, with flow behaviour measured by a 30 cm ring and setting behaviour monitored by needle penetration. In dry-mix production, the powder is blended with fine limestone or quartz flour, polycarboxylate ether superplasticizer, shrinkage compensator, and retarder in a conical screw mixer with a jacket temperature below 35 °C; transfer screws must be configured to avoid shear heating above 45 °C, which has caused partial film formation and loss of redispersibility in continuous lines. The site mixing uses a forced-action mixer at 500–600 rpm for 90–120 s with water at 20–25 °C; the slurry is pumped through a piston pump at 5–12 L/min to reach a thickness of 3–10 mm. The VAE powder contributes to lower surface crusting and improved adhesion to primed concrete, but an overdosage above 3.0 wt% can extend setting time and reduce 24 h compressive strength by 5–10% while slightly improving flexural strength. Terminal products include self-leveling underlayments for vinyl, LVT, rubber, and wood floor coverings, as well as moisture-tolerant renovation screeds where the flooring manufacturer sets the residual moisture limit.
Because gypsum binders develop strength through hydration of calcium sulfate hemihydrate and are highly sensitive to water demand, the addition of ELOTEX FL3210 at 2.0–4.0 wt% on dry gypsum basis alters both fresh paste rheology and hardened surface hardness. The governing standards are EN 13279-1:2008 for gypsum plasters and EN 13963:2014 for jointing compounds; surface hardness is determined by Brinell indentation, while setting time is assessed by knife-cut methods. The dry mix is produced in a horizontal single-shaft high-speed mixer with the powder added after beta-hemihydrate gypsum and mica or limestone filler; the blending time is kept below 10 min to avoid moisture absorption by the powder. On site, mixing with water at 18–22 °C for 60–90 s produces a trowelable skim coat with a water-to-powder ratio of 0.35–0.45. In gypsum joint fillers the dosage is held at 1.5–3.0 wt% to control shrinkage during successive strikes; in filler applications, the powder improves flexural strength and surface cohesion after drying but does not compensate for the inherent water sensitivity of gypsum, so these products are not specified for continuous wet exposure. Formulations containing amine-based set accelerators should be checked for setting-time shift and pH response, because the VAE powder can interact with minor constituents in ways that are not fully captured by standard laboratory screening. Terminal product types are gypsum skim coats, ready-mix drying-type joint fillers, lightweight renovation plasters, and gypsum-based repair compounds for drywall joints and surfaces.
In ETICS base coats, the polymer powder is subjected to two conflicting demands: low elastic modulus to follow tensile stress over mineral wool or EPS insulation boards, and high early cohesion to embed alkali-resistant glass fibre mesh during vertical trowelling. ELOTEX FL3210 is metered at 2.0–3.5 wt% of total dry base coat mass when tested under EAD 040083-00-0404 (formerly ETAG 004), with the upper edge used for crack-bridging and impact resistance on mineral wool systems and the lower edge for adhesive mortars that must carry board weight quickly. The production process requires a premix of cement, limestone filler, and the polymer powder in a conical screw blender, followed by the addition of cellulose ether and short polymer fibres; blending time after powder addition is limited to 5–8 min to avoid fibre damage. Because the powder bulk density typically ranges from 450–600 g/L, loss-in-weight feeders must account for aerated density fluctuations. At the application site, water demand is 0.20–0.25 by weight of dry mortar; the fresh mortar is spread at 3–6 mm thickness, and a 145–160 g/m² alkali-resistant glass fibre mesh is embedded before a second pass covers the mesh. The fresh mortar must remain workable for 2 h without segregation on vertical surfaces. Terminal product types include ETICS base coats for EPS and mineral wool boards, adhesive mortars for insulation fastening, and decorative thin plasters for exterior cladding. Overdosing beyond 4.0 wt% can increase surface tack and reduce early load-bearing capacity, while underdosing below 1.5 wt% tends to produce brittle base coats that fail impact resistance testing under EAD 040083 clauses.
For structural concrete repair applications where substrate compatibility is governed by modulus matching rather than tensile strength alone, polymer modification shifts the failure mode from brittle interface delamination to cohesive deformation within the repair layer. ELOTEX FL3210 is incorporated at 2.0–4.0 wt% of dry mortar in polymer-modified cementitious repair mortars designed for EN 1504-3:2006 classes R2, R3, and R4; R4 products typically operate at the upper end of the range to reduce dynamic modulus and improve low-thickness spall coverage. The production line includes a high-intensity mixer with embedded moisture sensors; the powder is added after the silica sand and before the microsilica and shrinkage compensators to prevent electrostatic agglomeration, and the final bag is sealed with residual moisture below 0.5 wt%. Surface preparation involves abrasive blast cleaning to a roughness of 2–3 mm, followed by priming with a polymer-cement slurry and trowel or spray application in layers up to 50 mm for R4 structural sections. The polymer powder influences chloride ion permeability, carbonation resistance, and indirect tensile strength; however, it cannot compensate for insufficient cover or active corrosion in the existing substrate. For spray-applied R4 systems using this specific VAE grade, published data for this exact configuration is limited; therefore project-specific validation with substrate moisture and salt profiles is required. Terminal product types are R3 horizontal repair mortars, R4 structural repair mortars, and non-shrink polymer-modified patching compounds for edge reprofiling.
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ELOTEX FL3210 is a redispersible polymer powder based on a vinyl acetate/ethylene copolymer. It is supplied as a white to off-white free-flowing powder for dry-blend operations in cementitious and gypsum-based building products. The powder is produced by spray-drying a polymer dispersion, and on contact with water the redispersible particles release polymer domains that coalesce as the mortar hydrates and dries. The reported glass transition temperature is approximately 16°C by differential scanning calorimetry, with a minimum film-forming temperature near 0°C. This places FL3210 in the medium-hard segment of redispersible vinyl acetate/ethylene powders: lower in stiffness than vinyl acetate/VeoVa types, yet harder and less elongation-driven than ethylene-rich VAE grades used in deformable systems. The product is not a liquid polymer dispersion; it therefore removes freeze-thaw instability during storage and permits one-component dry mortar production with ordinary silo and bag handling equipment.
Production dry blending is most consistent when FL3210 is metered by loss-in-weight feeders into a single-shaft plowshare mixer or twin-shaft paddle mixer. The powder should enter before fine fillers and cement have formed agglomerates, because later addition can leave polymer-rich clusters that survive the final 400 µm screening. Mill operators record bulk density and sieve residue because these two parameters affect dosing accuracy in volumetric systems and speck generation in finished mortars. In high-humidity coastal plants, the powder is best handled in closed conveying lines with dry-air purging; open bag dumps without local exhaust can introduce moisture and create buildup in bucket elevators.
The following typical values are used for incoming release and are not contractual specification limits. The current producer technical data sheet governs final acceptance windows.
| Property | Reported typical range or value | Reference method |
|---|---|---|
| Appearance | white to off-white free-flowing powder | visual |
| Bulk density, untapped | 450–650 g/L | producer method |
| Residue on 400 µm sieve | ≤ 2.0% | air-jet sieving |
| pH, 10% aqueous dispersion | 6.5–8.0 | potentiometric |
| Minimum film-forming temperature | 0°C | ISO 2115 |
| Glass transition temperature | 16°C | ISO 11357-2 |
| Ash content | 9–14% | ignition residue |
| Residual moisture | ≤ 1.0% | halogen drying balance |
Released batches that fail the moisture or sieve-residue limits can still be used after re-screening and partial drying, but the redispersibility of overheated powder may not recover. QC data should be trended by lot because shifts in ash content often indicate changes in inorganic anti-blocking additive and can alter water demand in tile adhesives.
Dry-blend dosages vary by application. In cementitious tile adhesives, starting formulations generally use between 2.0% and 4.0% of total dry mix mass. In self-leveling underlayments, loadings are often lower, from 1.5% to 3.0%, because high powder content can interfere with flow and early compressive strength development. Below 1.0%, film formation is discontinuous and the contribution to tensile adhesion is marginal; above 5.0%, air entrainment and water demand frequently become dominant process constraints. These thresholds are system-dependent and should be confirmed through dosage-response studies using the final binder and aggregate package. Published data for the exact threshold in every binder system is limited; no universal dosage ceiling replaces trial mixing. A well-designed dosage study should measure wet density, spread, adhesion after water immersion, and shrinkage on the same blend because polymer loadings that improve one property can reduce another.
In tile adhesives, FL3210 is used to increase tensile adhesion and deformability in formulations classified to EN 12004 and ISO 13007-1. A common target is C2TE when FL3210 is combined with suitable cellulose ether and a well-graded aggregate skeleton. Adhesion is measured by EN 1348 as tensile pull-off after water immersion, heat ageing, and freeze-thaw cycling. The numerical tensile adhesion minimums of EN 12004 are 0.5 N/mm² for C1 and 1.0 N/mm² for C2; FL3210-containing C2 formulations are typically tested against the 1.0 N/mm² criterion after specified immersion, heat, and freeze-thaw conditions. The polymer film compensates for the brittleness of cement hydrates and improves adhesion to low-porosity ceramic substrates. At production scale, the powder should be dry-blended with cement and aggregate before water addition to avoid polymer lumps that cannot be dispersed by slow paddle mortar mixing. At laboratory scale using an EN 196-1 planetary mixer, a uniform paste without visible polymer specks is the minimum dispersion check before open-time testing. In C2 systems, the water-to-powder ratio is generally lower than in ordinary mortar; mixer torque monitors often detect the transition from wetted to fully mixed polymer because of the change in cohesion.
Open time is not a simple function of polymer loading. In a C2 formulation, water retention and skinning rate can shift substantially when the cellulose ether substitution pattern changes, even at fixed FL3210 dosage. For this reason, open time measured to EN 1346 on one formulation cannot be transferred directly to another binder or additive package. The combination of FL3210 and a medium-viscosity cellulose ether can yield a more stable skinning time than the same dosage of a low-viscosity ether, but the final balance must be tested in the actual mixer. Field data from production lines shows that air entrainment from high-shear mixing is more damaging to open time than a small upward shift in polymer dosage; therefore dispersion quality is a control point before any open-time failure diagnosis.
FL3210 can be dry blended into self-leveling underlayments and patching compounds where flexural strength and surface abrasion resistance are relevant. The usual loading window is 1.5% to 3.0% of dry mass. In calcium aluminate cement/Portland cement systems, the combination of FL3210 and polycarboxylate ether superplasticizer can produce rheology that is highly sensitive to mixing water: small water increases can produce flow loss through segregation and air entrainment, while insufficient water prevents complete polymer film coalescence. Flow should be measured at constant water-to-powder ratio and compared with the performance categories of EN 13813. Repair mortars under EN 1504-3 class R3 can use FL3210 to improve adhesion measured by EN 1542, but the powder does not replace structural polymer fibers or corrosion-inhibiting admixtures. If flow-ring spread is used as a QC release, the spread target should be fixed for each lot because changes in ash content can alter water demand in the mixed mortar.
Equal-weight substitution is usually a starting point only when the incumbent powder is also a vinyl acetate/ethylene type. If the incumbent is a vinyl acetate/VeoVa type or a styrene-acrylate powder, direct equal-weight replacement may change open time, wet density, and pull-off adhesion. The mixing protocol should include a dry premix of fine fillers and FL3210 before cement is charged to the ribbon blender, because powder layering due to density segregation is a recognized production failure when addition occurs after fine limestone. In a 500 L horizontal paddle mixer, a dry mixing time of 180 s after visible powder incorporation is commonly sufficient; longer dry mixing can raise the temperature and build static charge that reduces bulk flow. The mixed mortar should be tested by EN 1542 on the actual substrate, not only on a laboratory concrete slab. If the existing mortar contains defoamer, the defoamer package must be re-evaluated because FL3210 can change air content in the mixed state, which affects both tensile adhesion and compressive strength.
Vinyl acetate/ethylene powders are differentiated from vinyl acetate/VeoVa redispersible powders mainly by the comonomer structure. The ethylene unit in FL3210 lowers the glass transition temperature without the use of coalescents and improves film flexibility, whereas VeoVa-based powders commonly provide higher hardness, better alkali resistance, and higher tensile strength at equivalent dosage. The trade-off is that FL3210 may show lower early compressive strength in high-pH cement matrices when compared with a harder VeoVa copolymer powder. Conversely, FL3210 is harder and less block-prone than ethylene-rich VAE powders used in deformable tile adhesives and waterproof membrane laminates. Published data for exact numerical property loss across these comparisons is limited because the response is strongly formulation-dependent.
| Class | Reported thermal range | Mechanical tendency | Typical formulation consequence |
|---|---|---|---|
| ELOTEX FL3210 | Tg approx 16°C, MFFT 0°C | balanced tensile strength and elongation | general-purpose C2 tile adhesive, repair mortar |
| Ethylene-rich VAE | Tg typically −10°C to 0°C | softer film, higher elongation, lower tensile strength | deformable tile adhesives, waterproof membrane laminates |
| Vinyl acetate/VeoVa | Tg typically 20°C to 30°C | harder film, higher tensile strength, lower elongation | high-strength patching compounds where early strength governs |
Relative humidity above 60% can cause powder caking; bulk bags should not be opened during rain. Silos are acceptable if vented with a moisture trap. The powder should not be combined with amine-rich accelerators or strong bases that alter cement hydration too aggressively, because film formation may remain incomplete at the moment the matrix hardens. In patching compounds, this can produce a brittle surface layer despite adequate powder dosage. If caking is suspected, the powder should be passed through a 400 µm sieve before batching. Bags stored in unheated warehouses through winter should be allowed to reach room temperature before dry blending, because cold powder can condense atmospheric moisture on the metal surfaces of screw conveyors.
