Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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UV Stabilizer 234

    • Product Name UV Stabilizer 234
    • Chemical Name (IUPAC) 7-[2,2,4,4-Tetramethyl-3-oxocyclobutyl]-8-hydroxy-5-oxachroman-2-carboxylic acid
    • CAS No. 70321-86-7
    • Chemical Formula C30H29N3O
    • Form/Physical State Powder
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    395786

    Chemical Name Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
    Cas Number 70321-86-7
    Molecular Formula C40H76N2O4
    Appearance White to slightly yellowish powder or granules
    Molecular Weight 629.06 g/mol
    Melting Point 50-70°C
    Solubility Soluble in organic solvents such as acetone, toluene, and chloroform
    Thermal Stability Up to 300°C
    Main Use UV light stabilizer in plastics and coatings
    Compatibility Suitable for polyolefins, PVC, polyurethanes, and engineering plastics

    As an accredited UV Stabilizer 234 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing UV Stabilizer 234 is packaged in a 25 kg blue polyethylene drum with a sealed lid, labeled with safety and product details.
    Container Loading (20′ FCL) The 20′ FCL container load for UV Stabilizer 234 typically holds 10 metric tons, packed in 25 kg fiber drums or cartons.
    Shipping UV Stabilizer 234 is typically shipped in sealed, airtight containers such as drums or fiberboard boxes, lined with inner plastic bags to prevent moisture and contamination. The containers are labeled according to safety regulations and should be stored in a cool, dry place away from direct sunlight and incompatible substances during transit.
    Storage UV Stabilizer 234 should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from direct sunlight and sources of ignition. Avoid exposure to high temperatures and moisture. Keep away from incompatible substances such as strong oxidizing agents. Always follow local regulations and safety data sheet (SDS) recommendations for safe handling and storage.
    Shelf Life UV Stabilizer 234 typically has a shelf life of 2 years when stored in a cool, dry, and well-ventilated place.
    Free Quote

    Competitive UV Stabilizer 234 prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Real-World Solutions With UV Stabilizer 234: Perspective From Our Plant Floor

    Introduction: Built by Chemists, Shaped by Demand

    Every tank, every batch, and every quality check at our facility has one thing in common—a commitment to giving polymer producers more than just another chemical. When we talk about UV Stabilizer 234, we're not talking about theoretical results or marketing fluff. Years of hands-on compounding experience drive us to refine how this stabilizer works, what it delivers in finished products, and how it stands up to real manufacturing challenges. Our engineers insist on products that keep their value on and off the lab bench. Customers rely on us because we stay close to the actual production process, listen to pain points, and build our solutions from the ground up.

    Understanding UV Exposure: Why Protection Matters

    Day in and day out, polymer products take a beating from sunlight. Without proper intervention, plastic parts fade, lose flexibility, and start to crack or chalk. Even high-performance engineering polymers eventually show damage—sometimes much faster than customers expect. UV Stabilizer 234 offers a powerful answer. Our own technicians have tracked how certain stabilizers work in automotive, packaging, and construction; none see harsher outdoor conditions. That's why most manufacturers search for an additive that doesn't just slow UV decay but fits seamlessly into evolving formulation needs.

    What Makes UV Stabilizer 234 Different

    UV Stabilizer 234 belongs to the class of hindered amine light stabilizers (HALS), more precisely a high-performance monomeric HALS. Structurally, it combines excellent resistance to high temperatures with persistent activity under UV exposure. Unlike the earlier generations of HALS additives, which sometimes struggled with low volatility and migration in polyolefins, 234 tackles these drawbacks head-on. Our chemists learned this the hard way, running tests on PP fibers, polyethylene films, and other critical materials. Additives drift out of polymers at elevated processing temperatures, leaving products vulnerable and sometimes even sticky to the touch. 234 shows low volatility under extrusion and injection molding, so more of the stabilizing effect actually stays in the part—not in the processing air or filter screens.

    This additive does more than protect against color fade. In our regular testing across TPO, ABS, and polyamide systems, we’ve seen it reduce physical property loss after many cycles of weathering simulation. That means less cracking, warpage, and loss of mechanical strength, even after months outdoors.

    Specifications, Not Mystique: What You Really Get

    We manufacture UV Stabilizer 234 as a light-colored, fine powder or granule. Our operators keep particle sizes tight because inconsistent distribution during compounding wastes time and causes process headaches. The product comes with a stated purity above 98%, and water content is kept to a minimum, typically below 0.1%. Bulk density and flow properties are checked batch-to-batch, so your feeding systems don’t jam or bridge during blending. No one in our plant likes running to clear hoppers, and our own headaches have driven a lot of product development here.

    Thermal stability matters. Our UV Stabilizer 234 resists degradation at polymer processing temperatures up to and above 300°C. This is critical for fiber spinning, film extrusion, and high-speed molding of engineering plastics, where breakdown byproducts can corrode equipment, stain products, and cause final property losses. We’ve had customers share stories of previous stabilizers yellowing nylon automotive connectors or causing clouding in clear polypropylene parts. After switching to 234, filter changes and reworks went down, and overall color shift dropped to barely detectable levels after aging tests.

    Usage Practicalities: Lessons From the Line

    Many suppliers focus on sales documentation—here’s how our blending technicians actually use the product on the shop floor. For polyolefins, the dosage commonly lands in the 0.1–0.5% range, depending on thickness, base resin grade, and expected lifespan. Double-winding yarn lines or blown film plants may push a bit higher for long-term outdoor stability. With PA6 and PA66, formulation sometimes requires combination with UV absorbers and antioxidants, especially for high-gloss automotive parts or electrical components in engine bays. Our technical team often recommends co-stabilizer packages, and we help customers with full lab trials on-site.

    The most common challenge: achieving even dispersion without agglomeration. 234’s particle shape and low melting range make it compatible with both standard twin-screw extrusion and high-speed masterbatch dilution. Customers processing recycled content appreciate that our stabilizer has strong solubility in many lower-grade melt streams—so no visible specks or haze buildup, even with high reclaimed resin content.

    What Sets UV Stabilizer 234 Apart From Other HALS

    Many users have tried traditional benzotriazoles, low-molecular HALS, and even hybrid mixtures. Here’s the functional difference: Stabilizer 234 sticks around in the base resin instead of migrating to the part surface or vaporizing in the extruder. That means less loss during long residence times and fewer process adjustments mid-run. Some legacy HALS chemistries build up on die lips, causing unscheduled clean-outs and line downtime. Our labs track residual content in finished pellets, so you can count on long-term UV protection where it’s needed—not lost in the air or on equipment.

    We’ve documented the product’s advantages over older HALS models in side-by-side tests with ABS and TPO roof covers, garden equipment housings, and transparent polypropylene samples. Products treated with Stabilizer 234 kept their mechanical performance well after 1,000 hours in QUV accelerated weathering chambers. Many competitors chalk or embrittle early. Ours keep their surface finish and color, a difference that customers have verified with their own third-party testing.

    Challenges and Real-World Solutions

    Customers often raise concerns about compatibility with flame retardants, heat stabilizers, or dyes. Our solution: real-world stress testing in working compounding lines, not just in a benchtop extruder. We’ve tested Stabilizer 234 in black, blue, and crystal-clear formulations, confirming minimal interaction with common synergists or pigment systems. No need for trial-and-error purchasing or unforeseen off-spec batches. Feedback from film manufacturers and sheet extruders guides our adjustments, so new color batches don’t throw off stabilizer performance.

    Recyclers often worry about product carryover affecting reprocessing. Extensive melt filtration and optical clarity measurements show our material rarely creates downstream haze or sticking issues. Its chemistry resists gumming up screens, letting production keep pace even as waste streams change in quality. This kind of reliability means less downtime and higher profit margins for compounders working on thin margins.

    Compliance, Safety, and Customer Confidence

    We don’t just tick regulatory boxes after the fact: our QC program builds food-contact and RoHS compliance into every batch, using routine chromatography and migration checks. Customers in Europe, North America, and Asia receive documentation rooted in real test results. Our commitment to quality isn’t a marketing slogan—it’s what keeps customers coming back year after year. When supply chain shifts or resin grades change, we keep a technical support line open for quick troubleshooting. It matters to keep your own customers’ reputations safe, whether you’re producing playground slides, greenhouse films, or high-visibility construction equipment.

    Production safety also benefits from experience. Supporting documentation always comes with lot-specific MSDS and practical handling instructions based on actual worker feedback. Handling a fine powder has its risks, so we’ve developed dust minimization strategies, antistatic agents, and secondary packaging to reduce spills, cross-contamination, and inhalation. We listen to line operators because they spot bottlenecks before lab engineers ever do.

    Meeting New Industry Demands

    Modern manufacturing isn’t static. As customers demand more recycled content, more transparency, and longer-lived plastic products, additives like UV Stabilizer 234 make the difference. Standard HALS products sometimes fall short in complex new blends. On our process optimization teams, we analyze emerging trends, from thin-wall renderings to 3D-printed technical parts. 234 responded well to tests in these new domains, avoiding the outgassing, yellowing, or toughness loss that hampers many conventional additives.

    Advanced agricultural films, pool liners, greenhouse covers—these use cases all test the limits of even high-performance stabilizers. Many films combine several layers, each with its own resin, pigment, and additive recipe. Our product’s compatibility with multiple extrusion techniques and the need to minimize migration between layers gives converters key flexibility. Customers report consistent film properties, less stickiness between rolls, and less need for process adjustment on aging equipment. That keeps raw material costs and scrap rates under control.

    Collaboration With Manufacturers: Continuous Improvement

    We never just ship product and walk away. Our labs maintain continuous feedback loops with production lines running short runs, new colors, or recycled blends. This commitment means minor formulation tweaks—switching resin suppliers, adjusting pigment load, or spiking throughput—become manageable events, not production crises. Learning from customer needs, our in-house development work pushes UV resistance into more demanding cycles. Sometimes this meant changing surfactant carriers, sometimes running extra cleaning on particle surface, always with process reproducibility as the guide.

    Customers joining our pilot plant trials get firsthand experience—real compounding, extrusion, and long-term aging. It’s not enough to look good on the spreadsheet; finished goods need to survive shipping, sitting outdoors, and end-user handling. Our stabilized products have gone to the field, tracked on rooftops, playgrounds, bridges, and sports courts. Each year, feedback drives changes for better flow, more stable color performance, and easier processability in line with customers' real objectives.

    Environment and Sustainability: Supporting Better Materials

    Making additives for the long haul means considering what happens after products serve their useful life. As recycling rates climb and more post-consumer content enters the market, the legacy of in-use stabilizers matters. Our product team tracks how Stabilizer 234 performs across multiple melt cycles, finding that migration remains low and stabilizing action extends into re-compounded resins. Less additive loss means fewer top-ups and better retention of mechanical integrity—even after repeated thermal and UV exposure.

    Waste reduction isn’t just a buzzword from conference podiums for us. On the production side, minimizing off-spec batches or minimizing dust emissions means a safer workplace and less material for incineration or landfill. At the customer interface, that same spirit translates to lower field scrap, fewer re-grinds, and lower risk of brittle or yellowed components resulting in costly recalls.

    Economic Value: Lower Total Cost of Protection

    Price per kilogram doesn’t tell the whole story. For most of our clients, what matters is how additive loading translates to total protection over a product’s service life. UV Stabilizer 234’s wider process window and lower loss rate during extrusion or molding often allow moderate dosages to outperform cheap, high-dosage alternatives. Add in fewer clean-outs, longer filter life, and lower off-color rates, and the overall cost of quality protection drops. Our process experts review these economics for new production lines or product launches, partnering with customers to hit both performance and budget goals.

    Competition is fierce in plastic manufacturing. No one has room for runaway overhead or unpredictable performance. Reliable UV stability reduces risk, increases product reputation, and keeps warranty claims at bay. In our experience, customers moving from unreliable stabilizers to 234 see a tangible reduction in field failures and a smoother scale-up from pilot to full production.

    Looking Ahead: Innovation Rooted in Real Needs

    We follow material science trends closely because our own clients push the boundaries. Whether it’s biopolymers, recycled blends, or technical fibers, we run field-scale trials, adjusting chemistry to answer new demands. The story of UV Stabilizer 234 is one of hard-earned refinements based on plant feedback, customer data, and actual outdoor weathering—not only the predictions of literature or industry journals. As customer requirements evolve, we continue to refine particle morphology, ensure batch-to-batch reproducibility, and strive for better integration with next-generation processing equipment.

    A Partner At Every Step

    Every kilogram leaving our factory represents more than an order number—it stands for decades of process experience, commitment to materials science, and a partnership ethic we’ve built with plastics manufacturers big and small. With UV Stabilizer 234, we offer more than protection: we offer a collaborative approach to solving real-world problems in plastics manufacturing, ensuring every product’s story is one of enduring performance—not premature failure.