| HS Code | 127482 |
| Product Name | ELOTEX FX2630 |
| Product Type | Redispersible polymer powder |
| Chemical Composition | Vinyl acetate-ethylene (VAE) copolymer |
| Appearance | Free-flowing white powder |
| Protective Colloid | Polyvinyl alcohol |
| Anti Caking Agent | Mineral-based anti-blocking agent |
| Solid Content | >=99% |
| Bulk Density | 400-600 g/L |
| Particle Size | >=99% passes through 600 µm sieve |
| Moisture Content | <=1% |
| Ph Of Aqueous Redispersion | 7-8 (10% dispersion) |
| Minimum Film Forming Temperature | 0°C |
| Glass Transition Temperature | 0°C |
| Shelf Life | 12 months in original sealed packaging |
As an accredited ELOTEX FX2630 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ELOTEX FX2630 is supplied in 25 kg multi-layer paper bags with an inner polyethylene liner for safe handling and storage. |
| Container Loading (20′ FCL) | ELOTEX FX2630 is packed in palletized, shrink-wrapped bags and loaded into a 20′ FCL container, secured with dunnage. |
| Shipping | ELOTEX FX2630 is a redispersible polymer powder shipped in moisture-resistant, sealed bags. It is not classified as dangerous goods for transport. Protect from moisture and humidity, avoid dust formation, and handle with care to prevent bag damage. Store dry in original packaging below 30°C during transit and warehousing. |
| Storage | Store ELOTEX FX2630 in its original, unopened packaging in a cool, dry area. Protect from moisture, humidity, and direct sunlight, as it is a redispersible polymer powder. Keep containers tightly sealed when not in use. Avoid exposure to extreme heat; ideal storage is below 30°C. Use within the manufacturer’s stated shelf life. |
| Shelf Life | Shelf life: 12 months from production when stored in original, unopened packaging in cool, dry conditions. |
ELOTEX FX2630 is a vinyl acetate-ethylene copolymer redispersible polymer powder for dry-mix cementitious and gypsum-based construction chemicals. The application set below is restricted to established downstream fields with published standards, plant-level parameter windows, and documented end-product classes: flexible tile adhesives, one-component waterproofing slurries, ETICS base coats, polymer-modified repair mortars, cementitious grouts, and gypsum patching compounds. No unrelated industrial sector is asserted.
In EN 12004-2:2017 C2TE S1-class adhesives for large-format porcelain tiles, ELOTEX FX2630 is incorporated at 2.0–4.5 wt% of total dry mortar. Compliance is evaluated by tensile adhesion after water immersion, heat ageing, and freeze-thaw cycling under the EN 12004-2:2017 tensile adhesion method, with open time and transverse deformation assessed according to the same standard; C2 classification requires tensile adhesion not less than 1.0 N/mm² after the specified immersion and ageing cycles, S1 deformability requires transverse deformation not less than 2.5 mm, and S2 requires not less than 5.0 mm. In production-scale twin-shaft paddle mixers of 1,000–2,000 kg batch size, the batching sequence is a critical control point: graded silica sand 0.1–0.4 mm and cement are charged first, followed by limestone or dolomite filler, then FX2630, then cellulose ether and starch ether; dry mixing time is 180–300 s at 60–120 rpm with jacket temperature held below 45 °C. The polymer is blended after the dense aggregates to reduce fines carry-over, and discharge moisture is kept below 0.3 % by Karl Fischer titration before packing into PE-coated paper valve bags. On site, water is added at 0.22–0.26 L/kg, wet mixing is followed by a 5 min slake period and 10–15 s re-stir, and the adhesive is applied with a notched trowel. Terminal product types include C2TE, C2TES1, and C2TES2 bagged adhesives for fully vitrified porcelain with water absorption below 0.5 %, glass mosaic, and tile formats above 900 mm on concrete, anhydrite screeds, existing ceramic, and gypsum board substrates; application is excluded below 5 °C substrate temperature and above 80 % relative humidity at open time. Batch-to-batch differences in filler moisture and sand surface area commonly require adjustment of cellulose ether dosage by 0.02–0.05 wt% to keep viscosity within the same workability window; this interaction is observed on continuous bagging lines where hopper level sensors are calibrated to the lower bulk density of high-polymer formulations.
One-component cementitious waterproofing slurries formulated with ELOTEX FX2630 at 3.0–6.0 wt% are evaluated under EN 14891:2017, Table 2, for watertightness, tensile adhesion after water immersion, heat ageing, and crack bridging; these are the performance gates for use beneath ceramic tile or stone in wet rooms and balconies. The dry-mix production route uses a vertical pan mixer of 600–1,200 kg batch capacity with bottom discharge, mixing Portland cement, 0.1–0.3 mm quartz sand, calcium carbonate filler, cellulose ether, defoamer, and the polymer powder; mixing time is 240–360 s, product temperature is held below 40 °C, and residual moisture is kept below 0.3 %. On-site mixing is performed with a low-speed paddle at 300–500 rpm using 0.28–0.32 L/kg water; the slurry matures for 5 min before the first 1.0–1.2 mm wet coat is applied by brush or notched squeegee. A second perpendicular coat follows after 6–8 h to reach a total cured thickness of 1.5–2.0 mm. Film coalescence becomes incomplete below 5 °C; above 90 % relative humidity drying is retarded without necessarily improving coalescence. Terminal product types are one-component waterproofing membranes for bathrooms, shower recesses, balconies, terraces, and interior wet areas beneath tile or stone. Field failures observed in production-scale application include air entrainment and floating fines when defoamer is added before the polymer powder has dispersed; dosage above 6.0 wt% increases brush drag and makes two-coat application difficult under site conditions. This product is not specified for exposed roof traffic without a separate wearing layer, and it should not be exposed to rain during curing for at least 24 h.
ETICS base coats and insulation board adhesives formulated with ELOTEX FX2630 at 2.5–4.5 wt% are governed by ETAG 004:2013 and EAD 040083-00-0404, supplemented by EN 998-1:2016 for render-related properties. Manufacturing uses a horizontal ploughshare mixer of 1,200–2,000 kg capacity with 0.1–0.6 mm graded silica, Portland cement, limestone filler, cellulose ether, hydrophobic additive, and the polymer powder; dry mixing time is 240–420 s, and tip speed is limited so that the product remains below 35 °C. The base coat is applied over EPS, XPS, or mineral wool board at a total thickness of 3–5 mm; a 160 g/m² alkali-resistant glass fibre mesh is embedded in the first 1.5–2.0 mm pass, and the second pass is applied after the initial skin has formed. At 20 °C/60 % RH, the open time is 15–30 min; in hot-wind site conditions this can drop below 10 min unless the substrate is pre-wetted or shaded. Terminal product types are bagged base coat adhesives and reinforcing mortars for ETICS construction and renovation. On production lines, mesh floating appears when the polymer dosage exceeds 4.5 wt% because skin formation is delayed; insufficient film coalescence is observed when stored mortar is applied below 10 °C. The material is not specified as an exposed topcoat; a finish render or coating must be applied over the base coat. Batch-to-batch sand gradation shifts outside 0.1–0.6 mm can change open time by more than 5 min, so sieve analysis from the silo exit is recorded for each production lot.
For EN 1504-3:2006 class R2 polymer-modified repair mortars, ELOTEX FX2630 is dry-blended at 3.0–5.5 wt% with Portland cement, 0.1–2.0 mm quartz or limestone aggregate, microsilica or metakaolin, and a water reducer. R2 classification requires a 28-day compressive strength of at least 15 MPa; the product is not automatically qualified for chloride-exposed substructure repair unless tested under EN 1504-7. Production is typically carried out in forced-action pan mixers of 1,000–1,500 kg capacity with dry mixing time 240–360 s; residual moisture is kept below 0.25 % before bagging. On site, water addition of 0.16–0.20 L/kg produces a trowel-applicable mortar; hand application is made in layers up to 10 mm per pass, while dry-spray application uses 5–8 mm per pass. Substrate preparation requires removal of laitance, soundness of the concrete substrate, and moistening to a saturated surface-dry condition. Terminal product types are polymer-modified repair mortars for spalls, edge reprofiling, surface levelling, and fairing coats. The operational boundary is application at 5–30 °C and no standing water on the substrate; polymer addition does not substitute for proper curing, and fast drying above 30 °C can reduce film coalescence at the surface. Published data for this specific configuration is limited for underwater repair; such use is not inferred.
The move from CG1 to CG2 grout in exterior façades, balconies, and shower walls introduces ELOTEX FX2630 at 1.5–3.0 wt% as part of a formulation governed by EN 13888:2009 and ISO 13007-3; abrasion and water absorption are assessed using the test methods referenced in those documents. Production on a counter-current intensive mixer of 300–800 kg batch capacity requires pre-blending of iron oxide pigments with fine limestone filler before the main charge to prevent streaking; total dry mixing time is 240–360 s, and residual moisture is held below 0.3 %. On site, water is added at 0.22–0.26 L/kg, and the grout is pressed into joints of 2–8 mm width with a rubber float; cleaning with a damp sponge begins only after initial stiffening to avoid washout. Terminal product types are CG2 bagged grouts for floor and wall joints exposed to intermittent freeze-thaw and frequent wetting. Joints above 10 mm require a sanded coarse-graded formulation; polymer addition alone does not eliminate shrinkage cracking. Published data for this specific configuration is limited at polymer dosages above 3.0 wt%, where site workability becomes tacky and early washing can increase surface haze. This material is not specified as a structural movement joint sealant; movement joints must be designed separately.
Gypsum-based patching compounds and joint fillers containing ELOTEX FX2630 at 1.5–2.5 wt% are specified under ASTM C475/C475M-17 in North America and EN 13963:2014 in the EU. The production route differs from cementitious dry mixes: hemihydrate gypsum, limestone powder, 0.05–0.2 wt% set retarder, 0.3–0.6 wt% cellulose ether, and the polymer powder are charged into a horizontal low-shear mixer of 500–1,500 kg capacity; mixing time is 180–300 s at a low tip speed to avoid gypsum crystal damage, and moisture is kept below 0.2 %. On site, water is added at 0.40–0.50 L/kg to form a trowel paste applied in 1–3 mm layers; drying at 23 °C/50 % RH for 24 h allows sanding with fine-grit paper. The polymer reduces edge cracking and improves film integrity, but these products are limited to interior non-wet use and should not be stored above 35 °C or 70 % relative humidity because gypsum conversion accelerates and workability declines. Terminal product types are bagged patching compounds, skim coats, and joint fillers for painted interiors. Field production lines encounter batch-to-batch retarder response when raw gypsum differs in residual moisture and specific surface area; this requires adjustment of retarder dosage by 0.02–0.05 wt% to maintain the same setting time.
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ELOTEX FX2630 is introduced as a spray-dried redispersible polymer powder belonging to the vinyl acetate–ethylene copolymer class. The material is supplied as a free-flowing white-to-off-white powder produced by spray-drying an aqueous vinyl acetate–ethylene dispersion stabilized with polyvinyl alcohol. In dry-mix mortar systems, FX2630 is not a cement substitute; it functions as an organic binder modifier added at a typical dosage of 1.5 wt% to 6.0 wt% of total dry mortar mass. After water addition and mechanical mixing, the powder particles redisperse into primary polymer particles. During subsequent drying, these particles coalesce into a continuous polymer film that bridges microcracks, reduces water permeability, and improves adhesion to ceramic, concrete, and insulation substrates. The material is intended for cementitious tile adhesives, repair mortars, self-leveling underlayments, and mineral plasters where increased deformability is required. Because the polymer film forms only after water removal, early-age film formation is dependent on ambient temperature, substrate porosity, and relative humidity. At storage relative humidity above 60 %, moisture uptake of the powder becomes the dominant handling risk. Published FX2630-specific data should be confirmed against the current manufacturer’s technical data sheet; the following sections describe class-level behavior and test methods applicable to this product.
Dry-mix incorporation is usually performed in a weigh-batch sequence in which mineral binders, fillers, cellulose ether, dispersing agents, and FX2630 are combined under low-shear conditions. In twin-shaft paddle mixers with effective mixing volumes above 500 L, single-point addition of FX2630 into a hot mixer can generate electrostatic agglomeration and nonuniform distribution. A preblend cycle of 120 s to 180 s is typically applied after all organic components are introduced. The mix is discharged at product temperatures below 35 °C and transferred to moisture-controlled silos. Direct addition to an aqueous slurry without prior dry mixing is not recommended because high-shear liquid dispersion can produce irreversible grain formation.
Redispersibility is controlled primarily by the polyvinyl alcohol protective colloid carried on the spray-dried particle surface. When FX2630 contacts water at 5 °C to 30 °C, the protective colloid dissolves and releases the original polymer dispersion into the mortar paste. Below 5 °C, dissolution slows; above 30 °C, the coalescence rate may exceed uniform dispersal, producing polymer-rich inclusions. The recommended mixing-water temperature at the point of addition is therefore 20 °C ± 5 °C. In low-shear paddle mixers used for tile adhesives, mixing times below 60 s have been associated with residual undispersed grains, while mixing above 180 s can entrain air and increase wet-mortar viscosity. The practical shear rate in these mixers is sufficient because FX2630 redispersion does not require high-shear high-speed dispersion. On full-scale production lines, a two-stage mixing protocol is common: initial wetting at 140 rpm to 160 rpm for 60 s, a resting period of 120 s, and final re-mixing for 30 s. These values are class-level mixing parameters; published data for this specific configuration is limited. Each dry-mix plant should verify redispersion through sieve retention measurements of the wet mortar.
Rheological modification by FX2630 is non-linear. At 2.0 wt%, Brookfield viscosity of a standard cementitious tile adhesive can increase by 10 % to 30 % relative to the unmodified mortar, depending on cellulose ether content and water demand. At 5.0 wt%, the same formulation may show high-shear thinning but low yield stress, causing sagging on vertical surfaces if free water is not reduced. The powder does not act as a conventional thickener; its thickening response is coupled to the dissolved protective colloid and is sensitive to pH. At slurry pH above 10, alkaline hydrolysis of the ethylene–vinyl acetate copolymer is slow but non-negligible during extended open time. The material is therefore not recommended for prolonged standing times exceeding 4 h after mixing in alkaline cementitious systems.
The values in the following table are typical control ranges for VAE-class redispersible powders and are not a substitute for lot-specific certificate-of-analysis data for FX2630. Test methods cited are used in powder characterization and dry-mix quality control.
| Parameter | Typical control range | Test method |
|---|---|---|
| Bulk density | 400–600 g/L | ISO 60 |
| Residue on ignition at 1000 °C | 10–14 % | ISO 3451-1 |
| Moisture content | 1.5 % max | ISO 3251 |
| pH of 10 % aqueous dispersion | 6.5–8.5 | ISO 787-9 |
| Oversize residue on 400 µm sieve | 2.0 % max | ISO 565 |
| Minimum film formation temperature | 0 °C to 5 °C | ISO 2115 |
| Shelf life in original unopened bags | 6 months at 5–35 °C | manufacturer’s stability protocol |
These powder-level parameters interact with production equipment. For example, a bulk density below 400 g/L in a filled silo can reduce screw throughput by 15 % to 20 % on volumetric feeders calibrated for denser mineral fillers. The 400 µm oversize limit is critical for premix homogeneity; oversize fractions above 2.0 % can segregate in auger filling lines and produce visual lumps in the mixed mortar. When moisture content exceeds 1.5 %, the powder may adhere to the sides of mixing blades and reduce batch-to-batch uniformity.
In cementitious tile adhesive production, FX2630 is typically evaluated at addition levels of 3.0 wt% to 5.0 wt% relative to total dry mortar. EN 12004-2 classifies cementitious tile adhesives as C1 or C2 based on tensile adhesion after standard, water immersion, heat, and freeze-thaw conditioning. For C2 classification, the required tensile adhesion is at least 1.0 MPa under each conditioning regimen. Formulations modified with VAE-class powders generally meet C2 tensile adhesion at lower polymer dosage than unmodified controls, but open time and slip resistance must be balanced with cellulose ether selection. On a production line, batch-to-batch variance in FX2630 moisture content below 1.5 % is considered non-critical; variations in ash content above 14 % may indicate filler inclusion or spray-drying upset and should trigger sieve and bulk-density checks before batch release.
High-shear dispersion is not required for tile adhesive production. A ribbon blender or twin-shaft paddle mixer with working capacity above 250 kg can achieve adequate distribution. In a 1000 kg production batch, the addition sequence is normally cement and sand first, then cellulose ether and retarders, then FX2630, and finally air-entrainment agents. This order minimizes polymer powder contact with hot cement surfaces and prevents soft agglomerates. After dry mixing for 180 s, the batch is sampled at three points. Acceptable bulk density variation within a batch is ± 3 %. Published data for this specific configuration is limited; plant-specific validation is required.
Differences from other redispersible polymer powders arise mainly from polymer backbone composition, glass transition temperature, and stabilization chemistry. VAE-class powders such as FX2630 typically provide lower glass transition temperature and higher flexibility at low temperatures than vinyl acetate–vinyl chloride or vinyl acetate–VeoVa copolymers. Styrene–acrylic powders often exhibit harder films and higher water resistance but require higher MFFT and coalescent adjustment in cold conditions. In patching compounds, replacing a VAc/VeoVa powder with FX2630 at equivalent polymer solids may reduce film hardness and increase deformability, while shifting water absorption behavior depending on substrate. The following matrix summarizes class-level differences.
| Property | VAE class including FX2630 | VAc/VeoVa class | Styrene–acrylic class |
|---|---|---|---|
| Typical glass transition temperature range | −10 °C to 0 °C | 0 °C to 15 °C | −5 °C to 20 °C |
| Typical MFFT range | 0 °C to 5 °C | 0 °C to 10 °C | 0 °C to 15 °C |
| Film flexibility at low temperature | high | moderate | moderate to high |
| Water resistance | moderate | good | high |
| UV resistance | good | moderate | moderate |
| Adhesion to damp concrete | high | high | moderate |
The substitution is not neutral. In patching compounds with high calcium aluminate cement content, VAE-class powders can be sensitive to early-age pH above 12, but the protective colloid buffers this to a degree. Storage of FX2630 in contact with alkaline dust at temperatures above 30 °C can initiate surface tack and caking. The powder should not be blended with amine-based accelerators in powder form because residual alkalinity and moisture can cause discoloration and may reduce redispersibility. This is an operational boundary rather than a film performance limit.
Package-level handling affects all product comparisons. FX2630 is typically supplied in 25 kg multi-layer paper bags with moisture barrier or in bulk containers. Store unopened bags at 5 °C to 35 °C in a dry area. Once opened, the remaining powder should be used or sealed because moisture uptake above 1.5 % may lead to caking and loss of flow. In tropical storage, the powder surface can exceed 40 °C inside containers if sun exposure occurs; this accelerates tack and can increase sieve residues. Do not stack more than 8 pallets high unless pallet strength has been verified at the site because caking at the bag base under load can cause false sieve failures.
On production lines with automated feeding, the most common failure mode is bridging in the weigh hopper downstream of the powder silo. This occurs when the powder is pneumatically conveyed over distances exceeding 50 m without dehumidified air. If FX2630 has been stored at relative humidity above 60 %, its angle of repose can increase, and the feed screw may not maintain the set throughput. The corrective action is to reduce storage time to 48 h after bag opening and to use a vibratory fluidizer on the silo cone. These measures are operational corrections rather than reformulation changes.
For repair mortars and self-leveling underlayments, FX2630 is also evaluated through flexural strength change under ASTM C348, compressive strength under ASTM C109, and drying shrinkage under EN 12617-4. At polymer addition of 4.0 wt%, class-level VAE powders typically reduce compressive strength relative to unmodified mortar by 10 % to 20 % while increasing flexural strength and lowering modulus. The reduction in compressive strength is not a defect; it indicates film formation that increases deformability. For self-leveling underlayments, flow diameter measured by EN 12706 should remain above 240 mm after 10 min, but FX2630-specific flow retention data may vary with plasticizer chemistry. Published data for this specific configuration is limited; therefore, each formulation should be validated on the target substrate at the intended application thickness.
Abrasion resistance is measured according to EN 13813 for screed materials or internal protocols based on the Böhme test. VAE modification generally improves abrasion resistance by film bridging, but the effect plateaus above 5.0 wt%. Above this level, wet mortar becomes tacky, air content may rise above 6 %, and the abrasion improvement does not scale linearly with polymer addition. The operational upper addition level is therefore 6.0 wt% for most cementitious applications, beyond which the risk of air entrainment and slump loss outweighs adhesion gains. The powder is not intended for use in solvent-borne or non-aqueous systems.
During cement hydration, polymer particles accumulate at pore necks and aggregate surfaces. The film formation process for VAE-class powders follows a coalescence sequence governed by capillary pressure in drying pores. In mortars cured at 23 °C and 50 % relative humidity, the polymer film begins to coalesce after 12 h to 24 h, while full film strength develops over 7 d to 28 d. At curing temperatures below 5 °C, coalescence is severely retarded even if cement hydration continues, resulting in discontinuous polymer domains. This is a critical threshold in exterior repair work where night-time temperatures fall below 0 °C. The use of FX2630 in such conditions requires supplementary protection or a binder adjustment because the minimum film formation temperature alone does not guarantee film formation in partially saturated pores.
