| HS Code | 240826 |
| Polymer Type | Vinyl Acetate-Ethylene (VAE) Emulsion |
| Appearance | Milky white aqueous dispersion |
| Total Solids Content | 65% by weight |
| Viscosity Brookfield | 10,000–14,000 mPa·s at 25°C |
| Ph | 4.5–5.0 |
| Density | Approx. 1.06 g/cm³ |
| Average Particle Size | About 1.0 μm |
| Glass Transition Temperature Tg | Approx. -15°C |
| Minimum Film Forming Temperature Mfft | 0°C |
| Surface Tension | Approx. 35–40 mN/m |
| Residual Monomer Content | Less than 0.1% |
| Film Appearance | Clear, flexible, tacky film |
| Stabilizer Type | Polyvinyl alcohol (PVOH) |
As an accredited Celvolit 149HV VAE Emulsion factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as a liquid in 1,000 kg IBC totes or 200 kg drums, with bulk tanker options available. |
| Container Loading (20′ FCL) | 20′ FCL: palletized drums or IBCs, secured with dunnage, temperature-protected against freezing, loaded to max payload for safe transit. |
| Shipping | Celvolit 149HV VAE Emulsion ships in sealed drums, IBCs, or bulk tankers. Protect from freezing (store above 5°C) and excessive heat. Use dry, ventilated containers; secure loads to prevent leakage. Avoid contamination. Not classified as dangerous cargo under standard regulations, but follow safe handling and spill procedures. |
| Storage | Store Celvolit 149HV VAE Emulsion in original, tightly sealed containers in a cool, dry, well-ventilated area, ideally between 5°C and 35°C. Protect from frost, direct sunlight, and extreme heat. Keep away from incompatible materials and ignition sources. Avoid prolonged storage; rotate stock. Stir gently before use if separation occurs. |
| Shelf Life | Store at 5–35°C, protect from freezing. Shelf life is 12 months from date of manufacture in original sealed containers. |
In the fabrication of load-bearing solid wood assemblies classified under service class 3 according to EN 204 / EN 205, the adhesive joint must survive a 4 h boiling water immersion test followed by tensile shear evaluation on beech substrates. Celvolit 149HV, formulated as a one-part system with 100 phr emulsion, 4–5 phr aliphatic polyisocyanate hardener, and 20–35 phr 10 µm calcium carbonate filler, delivers a dry bond strength exceeding 10 N/mm² and a boiled wet strength above 4 N/mm² when press-cured. However, the pot life restriction of 45–60 min at 20°C imposed by the isocyanate crosslinker introduces a process bottleneck: any delay in hot pressing beyond this window reduces the degree of crosslinking, causing a drastic drop in D4 performance. Production lines equipped with radio-frequency or heated platen presses operating at 80–100°C and 0.8–1.2 MPa specific pressure per glue line area require precise synchronization between the mixing station, lay-up conveyors, and the multi-opening press. A recurrent failure mode observed in industrial joinery is delamination at the glue line center when panel thickness exceeds 40 mm and the internal temperature ramp rate lags behind the required 5°C/min threshold, leaving the core uncured. To mitigate this, pre-heating the lamellas to 35°C before adhesive application is standard. The finish goods include finger-jointed door stiles, kitchen worktop core lamination, and structural glued laminated timber for furniture frames.
Spiral tube winding lines manufactured by PACKMAT, Helix, or similar OEMs targeting line speeds from 40 to over 100 m/min place extreme demands on the adhesive’s rheological profile. The grooved application roll transfers the bond liquid from an open trough to the ply edge, exposing the adhesive to shear rates in the order of 10³ s⁻¹ and significant air entrainment. Celvolit 149HV, thinned with 5–12 parts water per 100 parts emulsion to a Brookfield viscosity of 3,000–6,000 mPa·s, prevents strike-through on 0.35–0.60 mm unbleached kraft or recycled linerboard even at dry coat weights as low as 18–25 g/m². Compliance with FDA 21 CFR 175.105 and the CONEG model legislation for heavy metal content permits its use in cores that will contact dry food packaging. A critical process variable is the hold-up time in the trough: without chilled water jacketing, the exothermic friction of the recycling pump elevates the glue temperature above 30°C, triggering a viscosity drift that reduces wet tack and leads to spiral overlap slippage, a latent defect detected only when the finished tube is cut under high-speed sawing. The resultant spiral tubes and cores serve as inner mandrels for pressure-sensitive tape rolls, stretch film reels, and large-format plotter paper cores, where a minimum radial crush strength of 850 N per 100 mm length per ISO 11093-4 is specified.
| Application Context | Core Compliance Anchor | Typical Addition Ratio | Processing Method & Critical Equipment | Terminal Finished Good |
|---|---|---|---|---|
| Structural solid wood lamination (D4) | EN 204 D4, EN 205 | 100 phr emulsion + 4–5 phr aliphatic isocyanate + 20–35 phr filler | Hot platen or RF press, 0.8–1.2 MPa, 80–100°C | Finger-jointed stiles, kitchen worktops, load-bearing panels |
| High-speed spiral tube winding | FDA 21 CFR 175.105, CONEG heavy metal limits | 100 phr emulsion, 5–12 phr water, dry coat 18–25 g/m² | Grooved-roll applicator, 40–100 m/min, open trough with chilled jacket | Tape cores, film reels, plotter paper mandrels |
| Tufted carpet pre-coat | ISO 4919 tuft bind, ASTM D7267 edge ravel, EN 1307 | 100 phr emulsion + 200–350 phr CaCO₃, foamed to 250–500 g/L | Blade-over-roll froth coating, 15–30 m/min, dynamic gap control | Broadloom rolls, modular carpet tiles 50×50 cm |
| Nonwoven wet wipes / flushable cloth | EDANA/INDA GD4, NWSP 100.3, ZDHC MRSL | 18–25% binder add-on vs. fiber weight (dry) | Kiss-roll immersion, through-air oven 130–150°C, 30–45 s | Baby wipes, adult moist toilet tissue |
| Flexible cementitious waterproofing slurry | EN 14891:2012, EN 1542 adhesion | p/c 0.12–0.18 solid ratio; liquid to powder ~0.28–0.33 | Notched trowel or roller, wet film 1.2–1.8 mm, glass-fiber mesh reinforcement | Tile underlayment in showers, balconies, steam rooms |
| Vacuum membrane pressing of rigid PVC foils | DIN 68861-1, ISO 19209 | 100 phr emulsion + 60–80 phr fine CaCO₃, wet deposition 60–80 g/m² | Spray/roller coating, flash-off 60°C, membrane press 110°C, 0.8 MPa, 180–300 s | Kitchen doors, wardrobe fronts, RTA office panels |
Pre-coat backings for tufted carpets, especially those manufactured via blade-over-roll application at line speeds of 15–30 m/min, must balance high filler acceptance to reduce cost with adequate tuft lock and delamination resistance. Celvolit 149HV compounded with 200–350 phr ground calcium carbonate (D₅₀ 25 µm) and 0.5–1.0 phr hydrophobically modified ethylene oxide urethane (HEUR) thickener produces a stable compound that can be foamed to densities of 250–500 g/L using compressed air injection. The cured pre-coat must pass the tuft bind test per ISO 4919 with a minimum specification of 3.5 kg force for residential loop-pile, and edge ravel resistance per ASTM D7267 for modular tiles. A common production pitfall is excessive strike-back—the compound penetrates through the primary backing and contaminates the face yarn, causing tip staining visible only after final shearing. To control penetration, the surface tension of the foamed compound is adjusted with a 0.1–0.3 phr non-silicone surfactant, and the gap height of the coating knife is set dynamically based on backing tension readouts. The finished rolls, either 4-metre broadloom or 50 cm × 50 cm carpet tiles, also pass the EN 1307 classification for heavy domestic use when paired with a secondary jute or synthetic backing.
Nonwoven spunlace lines running 50–70 g/m² carded webs of viscose and polyester staple fiber target wet tensile strengths in the cross-direction above 15 N/50 mm per NWSP 100.3 (ISO 9073-3) to withstand consumer pull-out forces. A binder application via kiss-roll immersion followed by drying at 130–150°C in a through-air oven imposes a residence time of 30–45 seconds. Celvolit 149HV, applied at 18–25% dry add-on based on fiber weight without any external crosslinker, yields a wet burst of over 2.5 kPa in the slosh box while maintaining 95% disintegration per the EDANA/INDA GD4 protocols, thus aligning with the Wastewater Treatment Plant non-woven dispersibility requirements. Formaldehyde-donating resins are explicitly excluded from the formulation to meet the voluntary ZP 010 criteria for skin sensitization, and the absence of alkylphenol ethoxylates (APEOs) satisfies the MRSL of the ZDHC programme. The low glass transition temperature of −10°C ensures a soft, non-tacky hand without additional plasticizers, critical for the aesthetic acceptance of premium baby wipes and adult moist toilet tissue finished in flow-wrap packs.
Two-component flexible cementitious waterproofing slurries employed in interior wet areas and balcony decks under tile must comply with EN 14891:2012 for discontinuous systems, requiring adhesion to concrete of ≥ 0.5 N/mm² after water immersion and crack bridging capability of ≥ 0.5 mm at −5°C. Replacing part of the mixing water with Celvolit 149HV at a polymer-to-cement ratio (p/c) of 0.12–0.18 by solid weight, in combination with 42.5R Portland cement and 0–0.6 mm silica sand, gives a fresh mortar fluidity of 180–220 mm as measured by the flow table test per EN 1015-3. The protective colloid system of the emulsion ensures that no premature coagulation occurs even at a pH of 12.5, a condition that frequently destabilizes lower-grade VAE dispersions. Application by notched trowel or medium-nap roller at a wet film thickness of 1.2–1.8 mm demands a pot life exceeding 1.5 hours; field data from the Middle East, where ambient temperatures exceed 38°C, show that the water content must be increased by 5–8% to compensate for evaporation-induced viscosity rise, otherwise pinhole defects develop during rolling. The cured membrane, often reinforced with a 100 g/m² alkali-resistant glass fiber mesh, serves as the waterproofing layer under ceramic tile or natural stone in shower enclosures, steam rooms, and exterior terraces.
Rigid PVC foil (0.3–0.5 mm) applied to three-dimensional MDF door fronts via vacuum membrane pressing requires a primer adhesive that delivers an immediate fiber-tearing bond upon demolding and endures thermal cycling between −20°C and +60°C per DIN 68861-1 Teil 1 and 2. The primer is spray-applied or roller-coated at a wet deposition of 60–80 g/m² and flash-dried for 5–8 minutes at 60°C before foil placement. The formulation leverages 100 phr Celvolit 149HV, 60–80 phr fine calcium carbonate (D₅₀ 5 µm), and 2–3 phr of an APEO-free wetting agent to ensure uniform coverage on profiled edges. During pressing at a membrane temperature of 110°C and 0.8 MPa over 180–300 seconds, the coating coalesces into a continuous film that resists delamination after the mandatory 7-day conditioning test. In production environments, mismatching the foil’s plasticizer content with the VAE’s ethylene comonomer level causes plasticizer migration, softening the bond line and reducing heat resistance to below 65°C; therefore, foil suppliers must certify plasticizer type and concentration. Finished components include kitchen cabinet doors, wardrobe fronts, and RTA (ready-to-assemble) office furniture panels, where ISO 19209 laminate adhesion tests confirm that bond failure occurs entirely within the MDF substrate, not the adhesive layer.
Competitive Celvolit 149HV VAE Emulsion prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Celvolit 149HV is a high-viscosity vinyl acetate-ethylene (VAE) copolymer emulsion characterized by a nominal solids content in the range of 55.0–56.0 % as determined by infrared moisture balance per ISO 3251, a Brookfield RVT viscosity of 4,000–6,000 mPa·s at 23 °C using spindle #4 at 20 rpm according to ISO 2555, and a pH of 4.0–5.5 measured in accordance with ISO 976. The dispersed polymer phase carries a small average particle diameter of approximately 1.5 µm, yielding a moderately pseudoplastic flow profile that facilitates high-shear application while resisting penetration into low-porosity substrates. Residual monomer is held below 1,000 ppm for vinyl acetate, enabling compliance with FDA 21 CFR 175.105 and 176.170 for indirect food-contact adhesives and paper coatings, and the product is manufactured under a quality system aligned with ISO 9001:2015, with full REACH registration and absence of substances restricted under RoHS Directive 2011/65/EU. The defining differentiator versus the companion grade Celvolit 149 lies in controlled molecular weight augmentation during polymerization: 149HV delivers roughly an order of magnitude higher apparent viscosity at equivalent solids, a shift that directly translates into greater wet tack, extended open time—typical range 15–25 seconds on Kraft paper at 50 % RH and 23 °C when tested with a 100 µm wet film—and improved resistance to squeeze-out during nip-rolling in high-speed lamination lines operating at 80–120 m/min. In contrast, standard Celvolit 149 (2,000–3,500 mPa·s) is preferred where low-viscosity letdown and deep substrate penetration dominate, such as sprayable nonwoven binders or saturation applications. Applications for 149HV center on water-based assembly adhesives for wood, paper, and foam bonding, especially where rapid green strength is required immediately after clamping or pressure application; typical manufacturing formulations incorporate 5–15 % of a poly(vinyl alcohol) protective colloid to tailor thixotropy, and the emulsion exhibits compatibility with plasticizers such as dibutyl phthalate (subject to regulatory constraints), benzoate esters, and citrate plasticizers without inducing catastrophic phase separation provided the plasticizer addition rate is kept below 10 % of total formulation weight and is blended under low-shear anchor agitation at 50–80 rpm. Production-scale experience from twin-screw and planetary mixing lines shows that air entrainment during high-speed dispersion of fillers like calcium carbonate (mean particle size 5–10 µm) can be mitigated by holding the dispersion vessel under a vacuum of −0.06 MPa for 15 minutes post-compounding, as residual micro-foam can reduce peel adhesion on high-energy polyethylene films by 15–25 % as measured by a 90° peel test at 300 mm/min per ASTM D6862-11. The minimum film-forming temperature (MFFT) of 149HV is approximately 0 °C, a value that supports cold-weather adhesive performance but also imposes a processing window that must remain above this threshold during coating; line trials on an air-knife coating head have demonstrated that substrate temperature dropping to −2 °C leads to micro-cracking in the dried film and a loss of cohesive strength exceeding 30 % when the film is later conditioned to 23 °C and 50 % RH. Pre-drying of components is not generally required for the emulsion itself at relative humidity below 60 %, but when formulated with hygroscopic fillers, a forced-air oven drying step at 40 °C for 2 hours is advisable to prevent viscosity drift during storage. Shelf life is stated as 6 months from date of manufacture when stored in sealed containers at 5–35 °C; freeze-thaw cycling through more than 3 cycles of −5 °C to 25 °C typically results in grit formation and irreversible viscosity increase beyond 15,000 mPa·s. In terms of adhesive performance, formulation with 30 parts of 149HV, 2 parts of poly(vinyl alcohol) (degree of hydrolysis 88 %, 4 % aqueous viscosity 25 mPa·s), and 0.5 parts of a nonionic surfactant (HLB 13–15) yields a dynamic peel strength on untreated high-density polyethylene exceeding 2.5 N/mm after 24 hours of conditioning, measured according to ASTM D1876-08, while the heat resistance temperature of the bonded joint under a 500 g static load often surpasses 80 °C. The product must not be combined with polyfunctional aziridine crosslinkers at pH values below 7.0 without careful pH adjustment, as premature gelation can occur within 30 minutes of addition. Compared to lower-viscosity VAE emulsions, 149HV delivers a unique balance of cohesive strength and creep resistance in polymer-modified cement mortars, where addition rates of 5–8 % on cement weight enhance flexural strength by 20–30 % per EN 196-1 testing, provided the water-to-cement ratio is maintained at or below 0.45. Published data for long-term aging under combined UV and humidity exposure in exterior wood bonding is limited, and field performance in continuously submerged water immersion beyond 72 hours can show a decline in lap shear strength of up to 40 % unless a post-crosslinking system is employed. The emulsion’s high viscosity also influences spray application: airless spray equipment with a tip orifice of at least 0.017 inch and fluid pressure of 8–12 MPa is recommended to achieve a uniform fan pattern without clogging, and back-pressure regulators should be set to maintain a fluid temperature of 20–25 °C to avoid shear-induced coagulation in the pump. These processing parameters, drawn from continuous production on multi-station lamination lines, illustrate the operational boundaries within which 149HV delivers consistent bonding performance while highlighting the risk of property drops when temperature, humidity, or additive compatibility constraints are violated.
