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Methacrylic Acid [Stabilized]

    • Product Name Methacrylic Acid [Stabilized]
    • Alias Methacrylic acid
    • Einecs 201-204-4
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    581494

    Product_Name Methacrylic Acid [Stabilized]
    CAS_Number 79-41-4
    Molecular_Formula C4H6O2
    Molecular_Weight 86.09 g/mol
    Appearance Clear, colorless liquid
    Odor Pungent, sharp odor
    Density 1.015 g/cm³ at 20°C
    Boiling_Point 161°C
    Melting_Point 15°C
    Flash_Point 77°C (Closed cup)
    Solubility_in_Water Miscible
    Stabilizer Usually contains MEHQ (monomethyl ether hydroquinone)
    Vapor_Pressure 1.3 hPa at 20°C
    Autoignition_Temperature 360°C
    Refractive_Index 1.431 at 20°C

    As an accredited Methacrylic Acid [Stabilized] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Methacrylic Acid [Stabilized] is packaged in a 1-liter amber glass bottle, featuring a secure screw cap and hazard labeling.
    Shipping Methacrylic Acid [Stabilized] should be shipped in tightly sealed, corrosion-resistant containers, clearly labeled as a corrosive and flammable liquid (UN 2531, Class 8, PG II). Transport requires temperature control, protection from heat and sunlight, and compliance with all relevant hazardous material regulations for road, air, or sea shipment.
    Storage Methacrylic Acid [Stabilized] should be stored in a cool, well-ventilated area away from sources of heat, ignition, and direct sunlight. Keep the container tightly closed and away from oxidizing agents, acids, bases, and reducing materials. Use only approved, labeled containers made from compatible materials. Ensure proper stabilization to prevent polymerization, and monitor storage conditions regularly to maintain chemical stability.
    Application of Methacrylic Acid [Stabilized]

    Applications of Methacrylic Acid [Stabilized] in Industrial Manufacturing

    Methacrylic Acid [Stabilized] forms a core monomer in specialty polymer production, adhesive systems, and high-performance coatings. As a direct manufacturer, we supply large-volume industry sectors where compliance, process technology, and formulation accuracy drive product quality and safety.

    1. Acrylic Resins for Automotive Coatings

    Automotive OEMs and Tier 1 paint suppliers incorporate stabilized methacrylic acid during copolymerization to impart gloss retention, scratch resistance, and weather durability in basecoats and clearcoats. Formulators balance hardness with flexibility, relying on controlled dosing in emulsion or solution polymerization setups. Stringent in-process quality management ensures compliance with VOC and heavy metals limitations, with methacrylic acid forming the backbone for functionalized resin structures in high-solids or waterborne paint technologies.

    Industry compliance standards

    • ISO 12944 for corrosion protection paint systems
    • REACH Regulation (EC) No 1907/2006 Annex XVII: Restriction of hazardous substances
    • US EPA National Volatile Organic Compound Emission Standards for Automobile Refinish Coatings (40 CFR Part 59)
    • GHS labeling and SDS documentation as per UN recommendations

    Typical usage ratio

    • 5–20% by weight of total acrylic monomer load; formulators increase or decrease based on required crosslinking density and final film hardness.

    Downstream process integration

    • Introduced during batch or semi-continuous copolymerization stage with methyl methacrylate, butyl acrylate, and specialty cross-linkers.
    • Post-polymerization neutralization to optimize pH and storage stability.

    Final product types

    • High-gloss automotive clearcoats
    • Color basecoats for car bodies
    • Spray applied refinish repair paints
    • OEM structural primers

    2. Construction Adhesives & Sealants

    Methacrylic acid is a critical monomer in the manufacture of pressure-sensitive adhesives and reactive sealant polymers targeting the construction sector. Producers formulate acrylic copolymers to deliver adhesion to substrates such as concrete, glass, and aluminum facades, as well as resistance to plasticizer migration and exterior conditions. Raw material intake is closely controlled to meet indoor air quality certifications and robust mechanical performance specifications.

    Industry compliance standards

    • ASTM C920: Standard Specification for Elastomeric Joint Sealants
    • EMICODE EC1/EC1 PLUS: Low-emission construction adhesives
    • SCAQMD Rule 1168: Adhesive Volatile Organic Compound Limits
    • ISO 9001 certified manufacturing and batch traceability

    Typical usage ratio

    • 1–7% weight of total monomer blend within acrylic polymer backbone; varies with adhesion performance and modulus targets.

    Downstream process integration

    • Metered addition in continuous bulk or solution polymerization with acrylate esters and functionalized monomers.
    • Homogenization before mixing with tackifiers and fillers in adhesive compounding lines.

    Final product types

    • Flooring adhesives for wood and laminate panels
    • Weather-sealable construction mastics
    • Structural glazing sealants
    • Facade and joint caulking compounds

    3. Ion Exchange Resin Manufacture

    Major producers of ion-exchange resins use methacrylic acid as a functional monomer for synthesizing weak acid cation resins. Precise monomer ratio selection during suspension polymerization imparts targeted exchange capacity and swelling properties suited to water softening, metal recovery, and food-grade purification. Manufacturers adhere to detailed validation protocols for resin uniformity and leachable content, meeting regulatory requirements for potable and process water applications.

    Industry compliance standards

    • NSF/ANSI 61: Drinking Water System Components – Health Effects
    • EU Regulation (EU) No 10/2011 for food contact materials
    • US FDA 21 CFR 173.25: Ion-Exchange Resins Used in Food Treatment
    • ISO 9001 and HACCP integration for food and pharma grades

    Typical usage ratio

    • 70–90 mol% of the total monomer blend for weak acid cation resin production; adjusted for crosslinking with divinylbenzene or ethylene glycol dimethacrylate.

    Downstream process integration

    • Fed into suspension polymerization reactors with initiator, crosslinker, and porogen under nitrogen to control bead morphology.
    • Post-polymerization functionalization and sieving to meet precise mesh requirements.

    Final product types

    • Weak acid cation exchangers
    • Specialty food-grade ion exchange beads
    • Regenerable softening resins for municipal and industrial water
    • Metal recovery resin cartridges

    4. Dental and Medical-grade Polymers

    Medical device and dental materials manufacturers select stabilized methacrylic acid as a key ingredient in copolymers for tissue-compatible prosthetics, denture bases, and transparent orthodontic appliances. Raw material quality and traceability comply with global medical device directives and pharmacopoeial requirements, ensuring finished polymer biocompatibility. Polymerization performed in cleanroom or cGMP-controlled environments ensures zero residual monomer risk and consistent physical properties for regulated applications.

    Industry compliance standards

    • ISO 10993-1: Biological Evaluation of Medical Devices
    • EU MDR 2017/745 and US FDA 21 CFR 820 for medical device manufacturing
    • USP Class VI plastics certification (USP <88> Biological Reactivity Tests)
    • ISO 13485: Quality management for medical device manufacturing

    Typical usage ratio

    • 2–10% by weight of total monomer mix in dental polymer and medical-grade PMMA matrices; levels tailored to control polymer crosslink density and glass transition temperature.

    Downstream process integration

    • Hand-mixed or automated dosing with methyl methacrylate and cross-linkers prior to in-mold curing under medical facility quality assurance.
    • Post-cure leachate removal and sterilization for medical readiness.

    Final product types

    • Poly(methyl methacrylate) (PMMA) denture bases
    • Adjustable orthodontic devices
    • Medical-grade transparent trays and covers
    • Intraoral prosthetic frameworks

    5. Textile and Leather Finishing Auxiliaries

    Textile chemical suppliers and tanneries use methacrylic acid as a co-monomer in soft acrylic finishes and waterproofing agents for technical fabrics and leather goods. Application requires thorough homogeneity and strict quality control to guarantee color fastness, chemical resistance, and handle. Processing under certified environmental and product safety protocols ensures compliance in end-use apparel, automotive interiors, and industrial fabrics.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for restricted substances
    • ZDHC MRSL for hazardous chemical management
    • REACH Annex XVII compliance for textile chemicals
    • ISO 14001 certified environmental management

    Typical usage ratio

    • 3–15% by weight in acrylic finishing emulsions, adjusted for penetration and film-forming properties on natural or synthetic substrates.

    Downstream process integration

    • Dosed into pre-polymerized acrylic latexes prior to finishing bath mixing or spray coating operations on rolls or hides.
    • Thermal curing to anchor protective, flexible films on fiber surfaces.

    Final product types

    • Soft handle fabric finishes for sportswear
    • Water-repellent textile coatings
    • Flexible finishes for automotive upholstery
    • Stain-resistant leather topcoats
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    Certification & Compliance
    More Introduction

    Methacrylic Acid [Stabilized]: From the Factory Floor

    What Drives Us to Produce Methacrylic Acid [Stabilized]

    Working on the production of methacrylic acid [stabilized] brings daily insights into its real value and the practical decisions behind each batch. Over the years, we've seen industries shift to more versatile, high-performance materials. Methacrylic acid, especially the stabilized variety, became a clear answer to many of these challenges. Unlike bulk commodities, this molecule doesn’t just fill a drum and get hauled away—it’s shaped, stabilized, and delivered with intent. Our own process starts with methyl methacrylate or similar raw materials, transforming them through controlled oxidation and purification, careful every step for purity and safety.

    Our stabilized variant carries a blend of free-radical inhibitors—most commonly MEHQ (monomethyl ether hydroquinone). This isn’t just a technical afterthought. Adding stabilizers locks the product in a safe state, avoiding dangerous, runaway polymerization. We've tested this effect: a shipment of unstabilized acid, left in hot storage under the wrong conditions, runs the risk of hardening into useless resin or, worse, bursting drums due to exothermic chain reactions. With our stabilized model, users keep control, whether working in resin production, coatings, or water treatment formulations.

    Pushing for Specific Models and Quality

    Not all methacrylic acid looks or performs the same. In our experience, specifying a solid product starts with the actual numbers—purity above 99% by GC, color (APHA) under 20, inhibitor content precisely measured, moisture kept down below 0.05%. We’ve adjusted our plant’s fractionation columns, constantly refining cuts and test runs, to meet customers’ need for predictability. Our flagship product, typically known by code MAA-ST or MA99S (depending on local regulation and historical codes), matches what global acrylic resin makers actually request—no guesswork, just rigorous checks, batch to batch.

    Customers often compare methacrylic acid to acrylic acid and find a few clear differences. Methacrylic acid gives better weather and chemical resistance in the finished polymer, and creates harder coatings. That extra methyl group attached to the molecule makes all the difference. Over time, our team noticed that some customers switched from acrylic acid to methacrylic acid purely for that improved performance—in engineered plastics, pressure-sensitive adhesives, or UV-curable inks. Stabilized form makes sure that performance remains accessible and safe for scale-up or transfer, even for users who lack specialized polymerization reactors.

    Everyday Use and Real-World Applications

    We see methacrylic acid take shape across industries. Coatings manufacturers want it for outdoor durability—a blend including our MAA can lift gloss and toughness on road markings or metal panels well beyond the reach of acrylic-only systems. Water treatment formulators come to us because methacrylic acid backbones boost the selectivity and efficiency of ion-exchange resins. In adhesives, the same methyl branch that stiffens a cured resin increases bonding to flexible plastics or rubber.

    In our own R&D facility, we've worked alongside polymer chemists fine-tuning emulsions. Minor shifts in monomer ratios reveal how stabilized methacrylic acid holds reaction rates steady, avoiding premature gelling when tanks sit through a hot summer weekend. One of our own engineers once remarked that stabilizer content isn’t a bureaucratic hurdle, it’s insurance—nothing derails a production line faster than an unexpected polymer block at the valve. For this reason, we always recommend testing fresh product in small-scale setups, reviewing both inhibitor removal protocols and resin performance targets.

    Why Stabilized? Simple Experience Tells the Story

    In theory, unstabilized methacrylic acid should react identically in polymerization. In practice, the risks simply outrun the savings. Our clients facing variable warehouse conditions or long transportation times appreciate the extra margin for safety stabilizers give. In our shipping department, we log each drum’s storage time and temperatures, and we’ve archived plenty of anecdotal evidence from operators catching early-stage polymer formation only thanks to MEHQ’s visible presence. Stabilized methacrylic acid wins out in nearly every step—ease of handling, shelf life, transport compliance.

    On many sites, the possibility of accidents, blocked feed lines, or decomposition demand close attention. As manufacturers, we hear from logistics coordinators and plant engineers every week. They share stories about forgotten drums or delayed shipments. It rarely happens, but all it takes is one missed delivery window for heat or sunlight to creep in. The stabilized product gives everyone more confidence and less stress, and that’s a benefit we rarely see in paperwork, but you can feel on site.

    Comparing Methacrylic Acid with Related Acids

    Even for chemists who know their organics, the difference between methacrylic acid and acrylic acid makes a real-world impact. Methacrylic acid has a methyl group attached to the alpha carbon—not a decorative change, but a feature that changes polymer properties. Chemical and weather resistance improves, coatings last longer, adhesives grip different surfaces with more staying power. Our QC staff often details batches to customers who need predictable cure rates. We constantly analyze free-acid content, residual monomer, and potential impurities, because a higher spec means fewer surprises for downstream processes.

    From what we’ve seen, demand for stabilized methacrylic acid picked up sharply as regulations grew stricter around transport and workplace safety. Handling unstabilized acid costs more in training and hazard management. For a growing number of clients, moving to the stabilized model allows the same reactivity in polymerization, but it fits more easily into regular shipping, storage, and usage without extra headaches. That methyl group not only stiffens the backbone of an acrylic-based polymer, it also makes batch performance more reliable—polymer scientists regularly report lower shrinkage, better gloss retention, and stronger chemical resistance in both lab and field applications.

    Product Specifications Shaped by Direct Experience

    Our specification sheet would spell out the technical numbers, but real production doesn’t end there. Over years of actual plant experience, we’ve settled on some practical standards: GC purity near or above 99%, stabilizer content tailored to actual transport duration, and color targets that reflect customer process demands. High color values—usually over 40 APHA—signal possible side reactions. Any unexplained increase needs immediate operator intervention. Our own team has faced the occasional tank fouling caused by overlooked inhibitor additions, so we've learned to check every lot before loading. Moisture, as some customers learned the hard way, accelerates polymer formation during storage or blending—so we dry and test every run.

    Lab results and analytical charts back up our focus on consistency. We run daily HPLC and GC tests, not to pad a data sheet but to catch subtle variations before they reach the drum. We’ve listened to experienced polymer producers: their managers flag issues like “off odour” or sludging, and they pin the blame on out-of-spec impurities, not on abstract "process parameters." By working directly with end users, we’ve built feedback into our own manufacturing cycles, improving heaters, separators, and stabilizer dosing techniques to match user priorities. We don’t chase maximum spec for the sake of it; we deliver what truly matters in each batch, every time.

    Lived Solutions to Industry Challenges

    Raw materials fluctuate and customer expectations change. As manufacturers, not just processors or traders, we invest in process controls and staff skill to adjust rapidly. For example, resin makers often report variability in polymer molecular weight when switching suppliers. We re-tune distillation operates in response and maintain open dialogue with technical teams at customer plants. When heat waves threaten logistics, our shipping crew upgrades insulation and cool storage systems rather than simply increasing stabilizer load blindly.

    Where some plants carry legacy glass-lined reactors, others have moved to stainless steel, and each material interacts with methacrylic acid in its own way. We keep a direct technical service hotline for this reason: feedback gets processed into process improvements, not buried in a helpdesk queue. Once, a partner plant experienced polymer buildup in a storage tank; a quick consult between onsite operators and our chemists identified a drastic drop in inhibitor and solved the issue by recommending a fresh stabilizer injection coupled with line purging. Those are experiences you develop not through theory, but through the grind of production, day-to-day troubleshooting, and communication.

    Environmental and Safety Concerns

    Methacrylic acid can harm aquatic life and is classified as a hazardous substance by most regulators. Our plant manages not just production but also waste streams and emissions. Direct air coolers capture fugitive monomer, and we neutralize liquid losses before on-site treatment or disposal. We submit to unannounced audits, always focusing on compliance, not shortcuts. This approach grew over decades—our safety staff enforce rules, not as a checkbox, but as a safeguard for colleagues and communities. Our stabilized product means users avoid dangerous situations, whether from vapour buildup or accidental releases.

    Having seen near-misses in transport—overfilled drums, blocked vents—we incorporated robust training for our dock crews, from proper drum sealing to spill management. Every new team member hears about the risks from operators, not from a stack of printouts. By going beyond minimum safety, from raw material receipt to outbound QA, we keep both product and people protected. That knowledge and preparation show up in the day-to-day reliability and serenity our customers experience, even if they never visit a chemical plant in person.

    How We Adapt and Improve

    Making and supplying methacrylic acid [stabilized] isn’t a static business. Our labs keep pushing for cleaner, more precise output. We’ve upgraded automation in our stabilizer dosing, switched to lower-emission purification columns, and run scheduled downtime for thorough tank inspections. Several years back, fluctuating inhibitor prices forced us to find interchangeable, high-purity sources to maintain our blend without compromising safety. Rather than push cost-cutting onto the customer, we absorbed some pressures and redesigned our planning.

    Every few weeks, customer feedback triggers a process review—why did this batch show different aging in storage? How could this run better in customer reactors? That’s not a chore, but the job. On a practical level, we jump from process chemistry to material handling challenges. Take warehouse logistics: humidity spikes during rainy months led one year to a series of rejected shipments due to slight haze in product drums. The solution wasn’t extra paperwork but increased atmospheric controls and improved drying systems. Staff now monitor humidity as closely as purity.

    Solutions and Real Collaboration

    Manufacturing methacrylic acid [stabilized] goes beyond selling a standard product. Each purchase opens a working relationship. We help review formulations with technical clients and dig into root causes of occasional line stoppages. Our support means we often swap field ideas—how minor temperature adjustments on-site during a reactor charge can cut foam, or how to shift loading protocols to avoid point-source spills.

    Supply chain hiccups—like vessel delays or customs scrutiny—don’t end up as finger-pointing. We work back from each incident: does our labeling need greater clarity for international routes? Should we re-test stored samples to anticipate slowdowns? One season, a tropical typhoon shut down port access for a week. Rather than promise what didn’t exist, we communicated transit changes up front, extended stabilizer addition to stretch safe storage by an extra ten days, and ironed out every step with downstream users. No batch lost its quality, and customers avoided unplanned shutdowns.

    Building on Experience, Serving Next-Generation Uses

    Methacrylic acid [stabilized] isn’t only valued by veteran formulators. Markets keep evolving: bio-based polymers, medical devices, flexible electronics. We’ve seen new R&D requests for ultra-low metal content. Our own production shifted to isolate process streams for these ultra-pure applications. As electric vehicles and greener packaging aimed for new classes of acrylic resins, we tracked customer priorities. We adjusted inhibitor protocols to avoid residues in UV-related applications.

    Whether for classic polymethyl methacrylate (PMMA) sheet, specialty resins, or advanced water purification membranes, successful manufacturing never loses sight of product roots. Every specification we adopt comes from somebody’s feedback, failure, or urgent request. Methacrylic acid [stabilized] stands out because manufacturing experience ties into each shipment—years of plant operation, delivered in every drum. New uses always uncover a challenge: trace odors, off-color in finished polymers, storage longevity in high-humidity climates. Our answer isn’t layers of paperwork; it’s hands-on review, direct communication, and ready adaptation.

    A Final Note from the Manufacturing Line

    No factory becomes the best source for methacrylic acid [stabilized] by chance. We rely on people—technicians, operators, and engineers—running batch reactors, monitoring analytical lines, loading transport drums. The product comes out the door with a practical promise: each lot performs because care and intelligence are built into it. We never lose sight of safety and consistency, because one slip can sour an entire plant run, or worse, endanger lives.

    Looking at all the changes our industry faced—from regulatory upgrades, new end-user priorities, and sharper product demands—we see stabilized methacrylic acid as a genuine, hard-earned advantage. The stability offered isn’t only chemical or physical. It’s the peace of mind, the reliability in day-to-day operations, and the backbone behind successful end products, whether you’re extruding resins or inventing tomorrow’s coatings.

    So as long as industries grow and redefine what’s possible with acrylic chemistry, methacrylic acid [stabilized] will answer the call, shaped by real manufacturing experience, delivered with confidence, and always ready for the next challenge.