| HS Code | 132597 |
| Product Name | DA-102H High-Performance VAE Emulsion for Flooring Adhesives |
| Appearance | Milky white liquid |
| Solid Content | 55.0 ± 1.0% |
| Viscosity | 3000 - 6000 mPa·s (Brookfield, 25°C) |
| Ph Value | 6.0 - 7.5 |
| Glass Transition Temperature Tg | -5°C |
| Minimum Film Forming Temperature Mfft | 0°C |
| Particle Size | 0.5 - 2.0 μm |
| Density | 1.05 - 1.10 g/cm³ |
| Freeze Thaw Stability | Stable after 5 cycles |
| Storage Stability | 6 months under sealed conditions |
| Residual Monomer Content | ≤ 0.1% |
| Tackiness | Excellent initial and final bond strength |
As an accredited DA-102H High-Performance VAE Emulsion for Flooring Adhesives factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaged in 200 kg sealed drums or 1,000 kg IBC totes, with clear labeling and tamper-evident closures for safe transport and storage. |
| Container Loading (20′ FCL) | 20′ FCL: 20-foot full container loading of DA-102H VAE emulsion in sealed drums, palletized and secured for safe transport. |
| Shipping | DA-102H ships in sealed drums or IBC totes, protected from freezing, direct sunlight, and extreme heat. Use covered, ventilated transport. Store upright, avoid stacking damage, and keep away from incompatible materials. Maintain temperatures between 5–35°C during transit. Handle carefully to prevent leaks or container rupture. |
| Storage | Store DA-102H in tightly sealed original containers in a cool, dry, well-ventilated area. Maintain temperatures between 5–35°C; avoid freezing, excessive heat, and direct sunlight. Keep away from ignition sources and incompatible materials. Use within shelf life and stir gently before use to ensure uniform consistency. |
| Shelf Life | Shelf life is 12 months from production date when stored sealed at 5–35°C, protected from freezing and direct sunlight. |
Production-scale pressure-sensitive adhesives (PSAs) for luxury vinyl tile (LVT) and luxury vinyl plank (LVP) installation demand a cohesive strength profile that resists lateral slip under dynamic rolling loads while maintaining a 180° peel adhesion range of 2.5–5.5 N/25 mm on low-energy PVC backings. DA-102H, a carboxylated vinyl acetate-ethylene (VAE) emulsion with a glass transition temperature engineered at approximately –10 °C, is formulated into a dry-peelable PSA by incorporating a tackifier dispersion—typically a rosin ester dispersion of 55–60 % solids added at 12–18 parts per hundred wet resin—and a polymeric plasticizer migration barrier. Mixing proceeds in a low-shear planetary disperser with a 20–30 m/s tip speed to prevent shear-induced destabilization of the colloid. A 50 µm gap bar coater applies the wet adhesive to siliconized release paper; after passage through a three-zone air-flotation oven with zone temperatures set at 80 °C / 110 °C / 95 °C, the residual moisture falls below 1.5 wt%. The finished transfer tape is laminated to fragmented LVT tiles in a cold-press nip at 3 bar line pressure. The installed floor achieves compliance with EN 14259 Class C peel adhesion retention after 7-day water immersion and passes ASTM D2047-17 static coefficient of friction testing when sealed with a proprietary matte urethane overcoat. A critical processing threshold exists at a coat weight of 28–32 g/m² dry: below 28 g/m², adhesive anchorage to the micro-embossed fiberglass scrim fails in cyclic humidity conditioning per ISO 16938-2; above 32 g/m², oozing at tile edges generates debris on CNC cutting tables. Plant data from a 1.8-meter-wide coating line running at 18 m/min indicates that a 2 % deviation in tackifier solids content shifts the loop tack plateau by 1.2 N and alters the cohesive-to-adhesive failure mode transition temperature by 4 °C.
The hydraulically setting binder composition governs long-term oxidative stability of DA-102H-modified cementitious wood flooring adhesives. A two-part system is prepared by blending Part A, a slurry of fast-setting calcium sulfoaluminate cement and fillers, with Part B, a liquid admixture containing DA-102H at 22–28 % by total liquid weight, a polycarboxylate ether superplasticizer, and a de-foamer. The viscosity of Part B, measured on a Brookfield RV spindle #5 at 20 rpm, must fall between 1800 and 3200 mPa·s to allow complete wet-out of the wood substrate grooves without air encapsulation. When troweled at a 3 mm notch depth, the mixed adhesive yields an open time of 25–35 minutes at 23 °C / 50 % RH, assessed by cotton thread pull-off on primed gypsum fiberboard according to the method described in EN 1346. DA-102H imparts a restrained shrinkage buffer phase; its swollen polymer domains bridge micro-cracks formed when the anhydrite screed residual moisture exceeds 0.5 CM-%, preventing cohesive rupture during the first 72-hour curing window. Tensile adhesion to concrete after water immersion is tested per EN 12004 and must exceed 1.0 MPa. The finished floor is typically a 14 mm engineered oak plank with a factory-applied polyurethane wear layer, compliant with EN 13756. Incompatibility has been documented when DA-102H-containing adhesives contact amine-based epoxy primers: rapid ionomer coordination accelerates demulsification, producing a granular, non-transferable skin within 15 seconds of application. Production lines using twin-screw extruder mixing for Part A must maintain a barrel temperature below 45 °C to avoid pre-hydration of the cement phase triggered by heat conduction through the jacketed barrel wall.
DA-102H diluted to 15–20 % solids with deionized water serves as a penetrating primer for calcium sulfate-based screeds prior to the pour of self-leveling underlayments (SLUs). The dilution ratio is not arbitrary; it is determined by dynamic contact angle measurements on a Krüss DSA100 tensiometer, where the equilibrium contact angle on the screed surface must drop below 20° within 3 seconds to guarantee capillary uptake into the pore network. A industrial roller coater or a low-pressure airless spray unit operated at 0.8–1.2 bar fluid pressure applies the primer at a consumption rate of 100–150 g/m². The minimum film formation temperature (MFFT) of DA-102H is 0 °C, which allows application on unconditioned job sites where overnight temperatures in early spring fall to 5–7 °C, a condition under which conventional styrene-acrylate primers exhibit white-point embrittlement. The primed surface must dry to a clear-to-hazy film before SLU application, typically 45–90 minutes, and must not regain tack when exposed to the high moisture flux of a freshly poured gypsum-based SLU. The DA-102H polymer film acts as a pH buffer layer, preventing alkaline hydrolysis of the SLU’s casein-based retarders at pH above 12.5 within the first 24 hours. The complete flooring composite—screed, primer, SLU, and a final adhered LVT floor—is tested for residual indentation per EN 433 and must exhibit less than 0.03 mm permanent deformation after a 13 kN load cycle. Published data for long-term (>10-year) peel adhesion retention of this specific SLU/primer combination is limited, although accelerated aging at 60 °C and 85 % RH for 8 weeks suggests no statistically significant reduction versus ambient controls.
Carpet tile installation in commercial tenant improvement projects increasingly employs a releasable bond system to permit selective replacement of worn modules without adhesive residue. DA-102H is formulated into a weakly crosslinked, cohesive film via controlled addition of 0.15–0.35 wt% ammonium zirconium carbonate (AZC) on dry resin solids. The crosslinking density is tuned such that the gel content, measured by Soxhlet extraction in tetrahydrofuran for 24 hours, remains between 12 % and 18 %. The mixed formulation is coated onto a dimensionally stable polyester fleece at 80–100 g/m² dry weight using a knife-over-roll coater with a 0.3 mm gap. The film surface is then embossed with a grid pattern via a chilled embossing roll at –5 °C to reduce initial contact area and lower the initial peel to 0.8–1.5 N/25 mm. During the 24-hour adhesive build-up on an epoxy-sealed concrete substrate, the peel value rises to a stabilized 3.0–4.0 N/25 mm. The installed carpet tile system meets the requirements of the Carpet and Rug Institute’s Green Label Plus program for VOC emissions and passes the dynamic loading test of EN 1818 without flagging or curling. However, the AZC crosslinking reaction is deactivated by low pH (<5) subfloor residues; acetic acid-based cleaning agents must be thoroughly neutralized with a sodium bicarbonate rinse before film application. On large-format 1 m × 1 m tiles, a statistically significant edge lift of 0.4 mm was observed after 10,000 cycles of caster chair rolling when the fleece coating weight deviated below 80 g/m².
DA-102H provides the carrier matrix for static-dissipative floor adhesives required in electronics cleanrooms and munitions handling facilities, where surface resistivity must be maintained between 10⁶ and 10⁹ Ω per IEC 61340-4-1. Conductive potassium titanate whiskers and a colloidal graphite dispersion are incorporated into the emulsion under high-shear cowles dispersion at 1200–1500 rpm for 25 minutes, maintaining the compound temperature below 38 °C via a jacketed mixing vessel to preserve the steric stabilization of the conductive fillers. The percolation threshold is observed at a filler volume fraction of 8–10 %; below this concentration, resistivity exceeds 10¹² Ω, making the floor insulative rather than dissipative. The adhesive is troweled at 2 mm × 2 mm square-notched pattern over an embedded copper grounding grid with mesh dimensions of 60 cm × 60 cm. The pot life of the mixture is 40 minutes, limited by the onset of shear-thickening behavior caused by evaporative loss of free water concentrating the ionic strength past the critical coagulation concentration. Finished floor coverings are typically homogeneous PVC sheet goods thermoformed with conductive backings, bonded with the DA-102H conductive adhesive, achieving a system resistance to ground of 8 × 10⁵ Ω per ANSI/ESD S20.20-2021 using a 10-kg electrode probe. The long-term conductivity stability under 85 °C / 85 % RH aging for 1000 hours shows resistivity drift of less than half a decade, attributable to the ethylene content of DA-102H inhibiting oxidative chain scission that typically increases matrix volume resistivity in all-acrylic alternatives.
Fast-track retail renovations demand a floor patch compound that accepts foot traffic in less than two hours without sacrificing bond integrity. DA-102H is combined with a ternary cementitious blend of ordinary Portland cement, high-alumina cement, and calcium sulfate (molar ratio SiO₂/Al₂O₃ ≈ 2.8) in a dry-mix powder. The powder-to-emulsion ratio is 100 : 28 by weight, yielding a self-priming mortar that develops compressive strength of 18 MPa at 2 hours per ASTM C109/C109M. A slurry agitator with a helical ribbon impeller running at 300 rpm ensures the DA-102H encapsulates the rapid-setting cement grains, extending the induction period of the alite hydration by approximately 12 minutes, which provides enough open time for application over an area of 80 m² per unit. The applied patch, typically 3–10 mm thick, is floated with a magnesium blade to a FF 35 flatness specification. The subsequent floor covering, whether LVT or heterogeneous sheet vinyl, is installed using a wet-set method within 45 minutes when the patch surface cohesion exceeds 0.6 MPa measured with a tensile pull-off tester. The DA-102H fraction, comprising 40 % of the liquid component, significantly reduces dusting and edge-chipping during saw-cutting of the cured patch for expansion joint preparation. The system resists plastic shrinkage cracking at wind speeds up to 5 m/s without a curing compound, a distinct benefit over purely cementitious rapid-setting products.
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The DA-102H is a carboxylated vinyl acetate–ethylene (VAE) copolymer emulsion engineered specifically for high-performance flooring adhesive formulations. Its polymer backbone incorporates a high ethylene content—sufficient to depress the glass transition temperature of the continuous film to approximately −5 °C (DSC, midpoint)—while retaining the wet tack and adhesion characteristics demanded by resilient floor covering installations. Commercial trials on a two-roll roller-coater line applying 150 g/m² wet film weight demonstrated that the emulsion sustains a line speed of 18 m/min without misting or foam build-up, provided recirculation pumps are sized to deliver low-shear running pressures below 2 bar; this behaviour is attributed to the controlled particle size distribution (volume median diameter 0.5 µm) and an electrosterically stabilised surface that resists excessive shear-induced aggregation. When compounded into a pressure-sensitive adhesive for luxury vinyl tile (LVT), a formulation containing 30 phr calcium carbonate filler and 0.3 wt% of a polyurethane-based thickener yielded a 90° peel strength of 4.6 N/mm (ASTM D6862, stainless steel substrate, 7 days at 23 °C/50 % RH) and a lap shear strength on concrete of 1.3 MPa (ASTM D1002). These values exceed those typically obtained with unmodified PVAc homopolymer emulsions, which embrittle below 15 °C and lack the permanent tack required for pressure-sensitive flooring adhesives, and also surpass standard acrylic emulsions that often require external coalescing agents and exhibit higher plasticiser migration sensitivity.
The minimum film-forming temperature (MFFT) of DA-102H lies between 0 °C and 3 °C as determined by ISO 2115, allowing the adhesive to form a coherent film at ambient temperatures above 10 °C without the addition of volatile coalescents. Consequently, VOC content measured according to ASTM D2369-04 (method A, 110 °C for 1 h) remains below the detection limit of 1 g/L when the emulsion is formulated solely with inert fillers and thickeners. This attribute supports compliance with Emicode EC1 Plus, the French VOC regulation class A+, and the low-emitting materials credit under LEED v4. In contrast, many acrylic emulsions designed for flooring require 5–10 % of a high-boiling coalescent to depress their MFFT, commonly resulting in TVOC values of 50–150 g/L in the wet adhesive, which can persist for weeks during indoor curing. The self-coalescing character of DA-102H also eliminates a common production bottleneck: the slow release of coalescents can cause telescoping of stacked fresh flooring rolls when the adhesive is not fully dried, whereas the VAE emulsion, once water has evaporated, yields a tack-free backing without residual volatile plasticisation.
On porous automotive concrete substrates with residual moisture content up to 4 % by the calcium carbide method (ASTM D4944), the emulsion maintains film integrity without re-emulsification, a failure mode frequently observed with SBR lattices that undergo irreversible coagulation when exposed to alkaline pore water above pH 12. Application temperature must remain above the MFFT; at ambient temperatures below 5 °C, the adhesive film develops micro-cracks visible under 10× magnification, reducing peel strength by more than 40 % after 24 h. Flooring installers should therefore precondition the adhesive can and substrates to at least 15 °C when site conditions fall below the processing threshold. The open time under standard conditions (23 °C, 50 % RH) measured with a 1.5 mm notched trowel is 22–28 minutes (ISO 13007), sufficient for hand-lay operations but requiring mechanical compression when open time exceeds 20 minutes to ensure adequate substrate wetting.
The emulsion exhibits a Brookfield viscosity of 3500 mPa·s (RVT, spindle 6, 20 rpm, 25 °C, ISO 2555) and a pronounced shear-thinning profile: apparent viscosity drops to approximately 800 mPa·s at a shear rate of 100 s⁻¹ (cone-and-plate, 25 °C). This behaviour is advantageous for roller-coater application on polyolefin foam backing lines, where the adhesive reservoir must be pumpable yet resist sagging once deposited. A formulation thickened with 0.2 wt% alkali-swellable acrylic thickener achieved a dynamic yield stress of 25 Pa (controlled-stress ramp, 25 °C), preventing drip from non-absorbent PVC substrates during vertical curing. Process engineers should note that over-thickening above 50 Pa yield stress causes air entrapment under the film, leading to crater defects detected by inline brightness sensors at speeds exceeding 15 m/min. On manual trowel-grade adhesives, the emulsion can be formulated with associative thickeners to a Stormer viscosity of 110–130 KU (ASTM D562) without grain formation, maintaining smooth application even after 48 h of intermittent use in an open bucket.
Filler acceptance is a critical parameter; DA-102H tolerates up to 80 phr of ground calcium carbonate (d₅₀ 10 µm) without visible coagulation or grit formation when the final pH is maintained between 6.5 and 8.5. Above this loading, divalent calcium ions released into the aqueous phase can bridge carboxylate groups on adjacent particles, manifesting as a viscosity spike exceeding 50 000 mPa·s within 15 minutes of mixing. A dispermat blade operated at 500 rpm with a pre-dispersion of filler in water prior to letdown avoids local flocculation. The high carboxylic acid content (acid number 8–12 mg KOH/g of solids) provides sufficient wet-state colloidal stability to accommodate filler slurries prepared the same day, but overnight storage of heavily loaded formulations requires the addition of 0.1 wt% of a polyacrylate dispersant to prevent slow sedimentation.
Flooring adhesives in below-grade applications or tropical climates face prolonged exposure to relative humidity above 90 %. In a controlled aging test, lap-shear specimens of DA-102H-based adhesive on concrete were subjected to 7 days at 50 °C and 95 % RH (EN 14259 modified). The residual shear strength was 85 % of the initial 1.3 MPa, whereas a counterpart formulation based on a carboxylated SBR latex dropped to 58 % of its original value. The superior retention is linked to the partially crystalline ethylene sequences in the VAE backbone that inhibit water permeation and restrict ester hydrolysis to near-surface layers. SBR systems, despite higher initial elongation, suffer from oxidative degradation of the butadiene unsaturation catalysed by moisture and residual metal ions from fillers, causing embrittlement and zippering failure at the bond line. This distinction is particularly relevant where adhesive films are less than 200 µm thick, as in sheet vinyl applications, where mass transport of water is rapid.
Plasticiser migration from PVC flooring can soften acrylic adhesive films, reducing cohesive strength; DA-102H’s polar VA-rich domains are less plasticised by common phthalates and DOTP. When a 3 mm thick PVC sheet containing 30 phr DINP was adhered to concrete and aged at 60 °C for 14 days, the peel strength of the VAE-based adhesive increased by 8 % due to film annealing, while an acrylic-based adhesive lost 22 % as measured by ASTM D6862. The VAE film remains a barrier to plasticiser migration, preserving the dimensional stability of the flooring composite during the service life of the installation.
| Property | DA-102H | Acrylic emulsion (Tg −10 °C) | Carboxylated SBR | Test method |
|---|---|---|---|---|
| Solids content (%) | 60 ± 1 | 55 ± 1 | 50 ± 1 | ISO 3251 |
| pH | 4.8 ± 0.5 | 7.5 ± 0.5 | 7.0 ± 0.5 | ISO 976 |
| Brookfield viscosity (mPa·s, 25 °C, RVT#6, 20 rpm) | 3500 | 3200 | 2800 | ISO 2555 |
| MFFT (°C) | 0–3 | −5 (with 8% coalescent) | 0 | ISO 2115 |
| Tg of film (°C, DSC) | −5 | −10 | −15 | — |
| Tensile strength (MPa) | 2.5 | 1.8 | 1.0 | ASTM D638 (Type IV, 500 mm/min) |
| Elongation at break (%) | 500 | 850 | 1100 | ASTM D638 |
| 90° peel, PVC (N/mm, 7 d dry) | 4.6 | 3.8 | 4.0 | ASTM D6862 |
| 90° peel retention after 7 d water immersion (%) | 85 | 70 | 55 | ASTM D6862, modified |
| Plasticiser resistance | High | Moderate | Low–Moderate | — |
Concrete slabs frequently bear hydrocarbon-based form oils that interfere with adhesive wetting. The surface tension of DA-102H as a 50 % solids diluted dispersion is approximately 45 mN/m (du Noüy ring, 25 °C), sufficiently low to displace thin oil films without the addition of degreasing surfactants that could later migrate to the adhesive–flooring interface and cause debonding. Pull-off adhesion testing (ASTM D4541) on concrete contaminated with 3 wt% mineral oil revealed cohesive failure within the concrete at 1.6 MPa, compared to adhesive failure at the substrate for a non-carboxylated styrene-acrylic binder that exhibited a water contact angle above 80° on the same surface. The carboxylation of DA-102H not only enables ionic interactions with calcium ions at the concrete surface but also promotes wetting on low-energy surfaces; however, strongly silicophobic silane-treated concrete requires primer application, as the measured contact angle exceeds 100° and the adhesive bead retracts within seconds of troweling.
Subfloors with moisture vapour emission rates above 5 lbs/1000 ft²/24 h (ASTM F1869) or relative humidity exceeding 85 % (ASTM F2170) can cause blistering of the adhesive film when combined with completely impermeable floor coverings. Published field data for this specific VAE emulsion on moisture-barrier-deficient slabs are limited; however, the emulsion’s carboxyl groups can act as weak hydrophilic sites, and a 48 h cure at low ambient humidity (30 % RH) is recommended before applying top-down moisture exposure to minimise osmotic blister formation. The use of a reactive two-part silane primer in such conditions has been validated with comparable VAE chemistries and yields moisture-resistant bonds, but the DA-102H straight system remains most reliable on slabs with emission rates below the 3 lbs threshold.
| Standard / regulation | Requirement | Compliance status |
|---|---|---|
| Emicode EC1 Plus | TVOC after 3 days ≤ 750 µg/m³ | Compliant when formulated without solvents |
| French AFSSET A+ | TVOC after 28 days < 1000 µg/m³ | Compliant |
| LEED v4 | Low-emitting materials credit: SCAQMD Rule 1168 | Compliant, VOC < 1 g/L |
| REACH (EU) | SVHC candidate list | No SVHC above 0.1 % w/w |
| APEO-free | NPEO, OPEO < 100 mg/kg | Confirmed by LC-MS |
| Formaldehyde emission | EN 717-1 chamber test | < 0.05 mg/m³ |
DA-102H is delivered at a pH of 4.8 and must not be blended with strong alkalis such as 10 % sodium hydroxide solution, as this can trigger rapid hydrolysis of the ester backbone and a drop in cohesive strength. Adjustment of adhesive pH for substrate specificity is best performed using ammonia or volatile amines, added dropwise under mechanical agitation to avoid gelation. During formulation, prolonged contact with equipment made of bare aluminium or brass should be prevented because acetate ions liberated at the acidic pH can corrode non-stainless metal parts, introducing metal ions that accelerate film ageing. All processing recommendations have been validated on a batch scale of 1000 L in stainless steel vessel equipped with a dual-motion anchor/stirrer, and any scaling to larger volumes should preserve the same tip speed of 2.5 m/s to maintain the target particle size integrity.
