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Anhui Liwei Chemical Co., Limited.

VINYL ACETATE MONOMER (VAM)

    • Product Name: VINYL ACETATE MONOMER (VAM)
    • Chemical Name (IUPAC): Ethenyl acetate
    • CAS No.: 108-05-4
    • Chemical Formula: C4H6O2
    • Form/Physical State: Liquid
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: sales3@liwei-chem.com
    • Manufacturer: Anhui Liwei Chemical Co., Limited.
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    Specifications
    HS Code 523609
    Chemicalname Vinyl Acetate Monomer
    Abbreviation VAM
    Casnumber 108-05-4
    Molecularformula C4H6O2
    Molecularweight 86.09 g/mol
    Appearance Colorless liquid
    Odor Mild, sweet, ether-like
    Boilingpoint 72.7°C
    Meltingpoint -93°C
    Density 0.932 g/cm3 at 20°C
    Solubilityinwater 2.5 g/100 mL at 20°C
    Flashpoint -8°C (closed cup)
    Vaporpressure 125 mmHg at 20°C
    Autoignitiontemperature 402°C
    Refractiveindex 1.395 at 20°C

    As an accredited VINYL ACETATE MONOMER (VAM) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 25-liter blue HDPE drum with secure screw cap, labeled hazardous. Marked “VINYL ACETATE MONOMER (VAM),” batch and handling instructions included.
    Container Loading (20′ FCL) Container loading (20′ FCL) for VINYL ACETATE MONOMER (VAM): 80 drums x 220 kg, totaling 17.6 MT per container.
    Shipping **VINYL ACETATE MONOMER (VAM)** is typically shipped as a colorless, flammable liquid in steel drums, ISO tanks, or specialized tank trucks. It requires cool, well-ventilated storage away from heat and ignition sources. Proper labeling and handling precautions are necessary due to its hazardous, volatile, and reactive properties.
    Storage Vinyl Acetate Monomer (VAM) should be stored in cool, well-ventilated areas, away from direct sunlight, heat, and ignition sources. Use corrosion-resistant, tightly closed containers or tanks equipped with inert gas blanketing to minimize polymerization. Avoid contact with oxidizing agents, acids, or bases. Ensure appropriate grounding and bonding to prevent static discharge and maintain spill containment measures. Store at recommended temperatures (ideally below 30°C).
    Shelf Life VINYL ACETATE MONOMER (VAM) typically has a shelf life of 6-12 months when stored in tightly sealed, cool, and dry conditions.
    Application of VINYL ACETATE MONOMER (VAM)

    Applications of VINYL ACETATE MONOMER (VAM) in Industrial Manufacturing

    As a direct manufacturer of premium-grade vinyl acetate monomer, we supply global industries with high-purity material that meets demanding specifications for advanced polymerization processes. Below we detail key downstream application scenarios, highlighting standards, recommended formulation doses, critical points of process integration, and typical finished goods resulting from the use of our VAM in each sector.

    1. Polyvinyl Acetate (PVAc) Emulsion Systems for Adhesives

    Industrial adhesive manufacturers rely on vinyl acetate monomer as a cornerstone component to polymerize polyvinyl acetate emulsions. The monomer plays a decisive role in tuning molecular weight and viscosity profiles matched to diverse bonding environments, from wood joinery to fast-drying paper laminates. Applications in furniture, packaging, and construction depend on both the purity of VAM and strict compliance with formaldehyde emissions standards, especially in end-uses involving direct or indirect food contact.

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    2. Polyvinyl Alcohol (PVOH) Resin Production

    Producers of fully and partially hydrolyzed polyvinyl alcohol transform vinyl acetate monomer into a precursor PVAc resin, which is then saponified under alkaline conditions. Consistent VAM quality ensures uniform PVOH grade properties, directly impacting film solubility, mechanical integrity, and chemical resistance required in applications spanning paper surface sizing, textile warp sizing, and dispersion stabilizers for emulsion polymerization.

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    3. Vinyl Acetate-Ethylene (VAE) Copolymer Emulsions

    Building and construction chemical formulators utilize vinyl acetate monomer in tandem with ethylene to synthesize VAE copolymer emulsions. These polymer dispersions provide flexibility, adhesion, and water resistance tailored for construction adhesives, mortars, flexible coatings, and non-woven binders. Precision dosing and process control are vital as the vinyl acetate–to–ethylene ratio governs film-forming temperatures and elasticity suited for variable climate exposures.

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    4. Polyvinyl Acetate Copolymers for Paints

    Formulators of waterborne architectural paints introduce vinyl acetate as the main copolymerizable monomer combined with softening monomers such as acrylics or vinyl versatates. This approach delivers dispersions with balanced scrub resistance, color retention, and film-forming capabilities. Monomer quality and feed rate control directly affect pigment dispersion efficiency, sheen characteristics, and blocking resistance, crucial for coatings in both dry and humid climates.

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    5. Polyvinyl Acetate Homopolymers and Copolymers for Textile Finishes

    Textile finishers and fabric producers use PVAc-based dispersions derived from VAM to modify hand, drape, and dimensional stability in woven and non-woven goods. Fine-tuning the monomer feed allows for adjustment of softness, wash resistance, and anti-pilling behavior. The production process must ensure absence of formaldehyde and residual monomer, particularly for export to markets with stringent textile safety standards.

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    6. Surface Sizing Agents in the Paper Industry

    Pulp and paper mills employ PVAc and VAE dispersions synthesized from vinyl acetate to impart water resistance, surface strength, and printability improvements. Accurate dosing and stable polymer performance determine uniformity of sizing application, directly affecting runnability, ink absorption, and print crispness. Compliance with food packaging standards is mandatory for paper intended for direct or indirect food contact.

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    Free Quote

    Competitive VINYL ACETATE MONOMER (VAM) prices that fit your budget—flexible terms and customized quotes for every order.

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    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    VINYL ACETATE MONOMER (VAM): A MANUFACTURER'S PERSPECTIVE

    Introduction to VAM

    Working day after day inside a production facility, you grow very familiar with the rhythms and quirks of the chemicals you manufacture. Vinyl Acetate Monomer, which we often call VAM on the plant floor, has long played a critical role in shaping everyday materials across industries. Every batch that exits our reactors represents a blend of deep chemical engineering experience and real-world attention to detail. Unlike more niche specialty chemicals, VAM stands out for its sheer versatility and the scale at which it supports downstream production. In simple terms, VAM lets other chemists and manufacturers turn out reliable polymers, adhesives, and coatings with predictable quality.

    We produce VAM as a colorless liquid with a distinct, sweet scent. Over the years, our team has studied how every adjustment—temperature, catalyst, feedstock purity—imprints on the finished product. Small variances can cascade down the supply chain, throwing off polymerization for our customers or causing waste in large facilities. Industry tolerances leave little room for shortcuts. For VAM, that typically means chemical purity above 99.9 percent and moisture tightly controlled far below 500 ppm. We keep impurities like acetaldehyde and acetic acid to a minimal trace, because even trace contamination can alter the performance in sensitive vinyl emulsion or resin production.

    Where VAM Finds Its Place

    Every drum, tote, or bulk shipment that rolls out of our plant rarely stays in one place—VAM is headed for further transformation. In the adhesives sector, our VAM feeds the reactors turning out polyvinyl acetate (PVA), which turns up everywhere from woodworking glues to paper binders. The water-based adhesives that come from robust VAM supply let factories cut their dependence on solvents, addressing both workplace safety and environmental demands. Other colleagues down the supply chain tune their VAM input for ethylene vinyl acetate (EVA), turning out flexible foams, encapsulants, and specialty films for packaging or solar panels.

    In the emulsion polymerization sector, VAM can't be swapped for alternatives without losing specific material traits. Copolymers based on VAM help formulators fine-tune flexibility, adhesion, and resistance to degradation in paints and coatings. No other monomer brings the same balance of cost, reactivity, and performance. For customers working in textile sizing or paper coatings, they rely on our vigilance during production—knowing our VAM brings consistent molecular weight distribution and nearly no polymerization inhibitors left behind.

    Unlike commodity petrochemicals that may simply serve as fuel or raw reduction agents, VAM must follow a higher standard in both bulk and specialty applications. The pressure to meet downstream formulators’ demands—whether for automotive coatings or high-end packaging—drives continual investment in process control and real-time analytics. Every lot must match not just the technical data sheet, but the practical requirements of industrial partners who carry production risk on their shoulders.

    Comparing VAM to Other Industrial Monomers

    It’s easy for people outside of production to group all monomers together, but there are concrete differences. For many polymer chemists, the closest alternatives might be acrylates, styrene, or other vinyl compounds. Each of these carries its own fingerprint in reactivity and end-use performance. Compared to vinyl chloride, VAM offers milder toxicity but avoids the yellowing and brittleness that sometimes dog PVC products. When set beside ethyl acrylate, VAM-powered emulsions yield stronger adhesion, improved flexibility, and faster setting under standard conditions. The ease with which VAM copolymerizes with a wide range of other monomers makes it a flexible building block—one that rarely requires extensive reformulation when migrating between application spaces.

    Acrylic monomers lean heavily into UV resistance and weathering, which are vital in exterior coatings. Still, VAM remains the industry standard for indoor applications or where cost control is paramount. Industry veterans have learned to value the fact that vinyl acetate-based products cure faster, handle a broader pH window, and simplify the addition of cross-linkers or fillers without introducing runaway viscosity issues or phase separation. On a technical level, VAM places fewer demands on rheology control and blends well with both natural and synthetic ingredients.

    Quality Control: Everything Happens in the Details

    There’s no shortcut to making VAM with reliability that customers—and their insurance underwriters—trust. From the tank farm to the shipping bay, every process stage pushes plant capabilities. We frequently audit raw acetic acid and ethylene input to keep the catalyst beds from fouling or generating off-spec by-products. In the distillation and purification zones, operators monitor water content, stabilizer additions, and color metrics, because tiny deviations can signal process drift long before a lab test comes back.

    What separates a manufacturer from a trader comes down to this level of oversight. Cutting corners in purification doesn’t just create paperwork headaches. It risks failing a batch of high-performance powder coatings on a production customer’s line—adding costly setbacks and undermining trust. In export markets, especially for medical devices, even a hint of contamination will disqualify entire shipments. Regulators worldwide have ramped up their scrutiny, and rightly so, given VAM’s presence in everything from children’s craft glue to laminating adhesives for packaging. Year after year, certification bodies scrutinize our operating logs, installation qualifications, and down to maintenance of polymerization inhibitors.

    Behind the Scenes: Manufacturing Workflow and Challenges

    Running a modern acetoxylation or carbonylation plant isn’t just about following a recipe. Engineered systems, catalyst design, and emissions handling combine into a continuous dance where any stutter creates headaches. Control room teams monitor, in real time, reaction temperatures, pressure profiles, and by-product inventories. Significant effort goes into keeping oxygen ingress at bay, as VAM’s reactive double bond can turn a safe process into a hazardous one if controls slip out of range. That risk isn’t theoretical—every plant veteran knows fellow operators have had to step in during upset conditions to prevent thermal runaway.

    We also commit resources into addressing the residual acetaldehyde, a common impurity that rides along if columns aren’t vigilantly managed. Its presence, even at several ppm, undermines adhesive consistency and creates off-odors or yellowing in final applications. The same goes for keeping storage tanks blanketed under nitrogen—open exposure to air degrades product quality and shortens shelf life. All of these factors lead to one outcome: continuous investment in monitoring and control pays off, both for our peace of mind and for the people trusting our product downstream.

    Thinking Like a Manufacturer: Supporting Customers on the Frontlines

    Bulk shipping tanks, railcars, and intermediate containers come loaded with product specs. Still, the true value comes when our technical support team works hand-in-hand with customer engineers to address challenges as they arise in real production. A resin producer struggling with variable chain length in their copolymers often needs more than an updated certificate of analysis. They need root cause analysis that tracks back to possible upstream changes—a change in VAM stabilization protocol, a subtle shift in reaction time, or even storage conditions during unusually hot weather.

    Veterans on our support team share war stories from times when adhesive lines “froze up” due to a contaminated drum that had picked up excess acetic acid moisture from leaky seals. Every time we get called in for troubleshooting, we compare those experiences against current operating procedures—and look for weak points in the chain that need reinforcement. Our job isn’t finished just because the customer signs off on the latest shipment. Modern production contracts set the bar higher, specifying supply reliability, shelf-life, and long-term performance consistency.

    Sustainability and Regulatory Trends: The Next Reality

    Over two decades, producers have moved from simple output targets to taking responsibility for the environmental and health impact of their VAM operations. We’ve invested in advanced emission scrubbers and closed-loop water systems to reduce releases of by-products and VOCs, knowing that community and regulator scrutiny grows yearly. There are challenges unique to VAM: its volatility and flammability raise the stakes for storage safety, transport, and downstream handling. Because regulators in Europe, North America, and across Asia Pacific maintain strict VOC emission rules, we fine-tune our plant design to enable fume capture and minimize venting—even as production volumes climb.

    Stakeholders increasingly ask about VAM’s lifecycle impact. We track carbon intensity at every step, often running process audits to squeeze out excess utilities consumption or reduce non-renewable inputs where technically possible. Recent plant upgrades have included more effective heat exchange systems, catalytic recovery of by-product gases, and solvent recovery units that re-capture VAM lost during tank transfers or maintenance lapses. This minimizes losses, increases cost efficiency, and, most importantly, addresses stricter local permitting thresholds on chemical plant emissions.

    As downstream customers shift toward greener formulations, we see R&D teams testing new VAM copolymers for reduced solvent content and lower drying energy. These new processes can’t tolerate inconsistent monomer feedstock; tighter lot-to-lot specs become a business necessity, not just a paperwork exercise. Some manufacturers have even experimented with biobased acetic acid precursors to further lower overall carbon footprints, although technical trade-offs—price, reactivity, scalability—remain under investigation.

    Addressing Supply Chain and Safety Realities

    Engineers and plant managers have learned to take nothing for granted. Logistics teams go over every link—tank integrity, blended batch traceability and paperwork accuracy—because even a brief disruption can strand deliveries en route or contaminate a customer’s reactor. Older transport barrels can absorb residual moisture, prompting offspec analysis on delivery. That’s why we maintain close partnerships with trusted logistics providers and invest in routine training for drivers handling hazardous loads. Safety, not mere cost, governs every storage and transfer operation. It always helps to remember: minor oversights turn into genuine safety incidents when risky compounds like VAM are overlooked.

    Our HSE groups work daily to qualify systems for fire suppression, emergency venting, and containment. Regular drills go beyond regulatory minimums, focusing on the sort of reaction hazards that come only from deep process experience. New employees learn these lessons early, often mentored by operators with decades behind them. In the event of abnormal weather, delayed shipping, or political unrest affecting feedstock supplies, customers need quick, transparent updates so they don’t fall behind on their own timelines.

    On a global scale, supply chain disruptions—container delays, port congestion, or refinery downtime—can send price shocks up and down the market. We’ve seen moments where reliable VAM stock becomes the difference between an uninterrupted adhesives factory and a full line stoppage. The long-running relationships built with key customers rely on our ability to navigate these headwinds, keep plants running through supply gaps, and communicate clearly about what’s possible in tight situations.

    Research Drives Every Clean Batch

    In-house R&D labs keep testing and refining the core technology. Staying ahead of shifting customer needs, regulatory thresholds, or cost targets means making incremental improvements in catalysts, separation systems, and handling infrastructure. Our scientists explore new process pathways and catalytic formulations that trim energy demands or extend catalyst lifetimes, squeezing just a few more percentage points from raw material yields. They also investigate ways to produce lower-acetaldehyde VAM in a single process loop, cutting out an entire purification stage and reducing manufacturing waste.

    Feedback loops accelerate innovation. When a batch drifts outside target parameters, R&D delves into root causes and translates process insights into better operating guidelines for the plant team. We approach these investigations not as finger-pointing, but as shared problem-solving exercises, where veteran shift operators bring hands-on perspectives that might escape even the sharpest lab technician. In that way, every improvement in our manufacturing discipline and process technology ripples outward, giving customers a more dependable base for their own production schedules.

    As research on new applications for VAM evolves—advanced barrier packaging, high-end medical adhesives, or next-generation flexible electronics—we work side by side with customers during pilot-scale trials. Field experience with formulation performance comes back as data for improving our core product, creating a feedback loop of incremental advances.

    Looking Beyond the Product: The People and Process Behind Every Shipment

    Chemical manufacturing, as seen from the inside, goes far beyond filling tanks or ticking off quality checklists. Across departments, we carry responsibility for the health, safety, and satisfaction of everyone who inadvertently relies on VAM: the adhesive chemist perfecting a new formulation for faster packaging, the worker lining flexible pipes with VAM-doped coatings, or the artisan gluing together a handmade project. Failures or inconsistency at the monomer source multiply down the value chain—best avoided through discipline and mutual understanding.

    For our team, shipping VAM is a collective effort. Teams track process control data, implement maintenance cycles, share incident learnings, and pre-empt quality drifts, all guided by the simple knowledge that every drum touches someone else’s work. Equally, we pay attention to changes in customer-side requirements or product feedback, translating lessons into process updates and validation runs that often take months to report their value.

    What keeps the operation moving forward isn’t flashy marketing or easy promises; it’s the relentless focus on maintaining dependable production, anticipating supply needs, and continually refining process reliability. From the reactor’s cradle of precise heat control to the customer’s formulation kettle, VAM’s journey reveals hard-won lessons at every step. That’s what makes vinyl acetate monomer stand out as more than a commodity—it provides a dependable foundation for countless products and partnerships, linking chemistry with concrete results across the industries that shape our daily lives.