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HS Code |
648110 |
| Chemical Name | Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate |
| Cas Number | 2082-79-3 |
| Molecular Formula | C29H48O3 |
| Appearance | White to off-white powder |
| Molecular Weight | 444.7 g/mol |
| Melting Point | 50-54°C |
| Solubility | Insoluble in water, soluble in organic solvents |
| Odor | Odorless |
| Primary Use | Antioxidant for plastics and polymers |
| Stability | Good thermal stability |
| Storage Conditions | Store in a cool, dry place |
| Compatibility | Compatible with polyolefins and other polymers |
As an accredited Antioxidant L57 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Antioxidant L57 is packaged in a 25 kg net weight blue plastic drum with secure, sealed lid and clear identification labeling. |
| Shipping | **Antioxidant L57** is typically shipped in sealed, high-density polyethylene drums or bags to prevent contamination and moisture absorption. It should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible materials. Handling precautions and safety data sheets must be strictly followed during transport and storage. |
| Storage | Antioxidant L57 should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and moisture. Keep the container tightly closed when not in use. Store away from strong acids, oxidizing agents, and incompatible chemicals. Ensure proper labeling and avoid storing near food or drink to prevent contamination. Handle in accordance with safety guidelines. |
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Purity 98%: Antioxidant L57 with Purity 98% is used in polyolefin resin compounding, where it delivers superior long-term oxidative stability. Molecular weight 350 g/mol: Antioxidant L57 with molecular weight 350 g/mol is used in automotive elastomer processing, where it improves retention of mechanical properties under heat aging. Melting point 140°C: Antioxidant L57 with a melting point of 140°C is used in thermoplastic polyurethane manufacturing, where it ensures uniform dispersion and consistent antioxidant efficacy. Particle size <10 µm: Antioxidant L57 with particle size less than 10 µm is used in PVC cable insulation, where it enhances processing homogeneity and surface finish. Stability temperature 220°C: Antioxidant L57 with stability temperature of 220°C is used in polyester fiber production, where it provides effective thermal protection during high-temperature spinning. Viscosity grade 12 mPa·s: Antioxidant L57 with viscosity grade 12 mPa·s is used in synthetic lubricant formulation, where it maintains oxidation resistance without affecting oil rheology. Solubility in mineral oil 0.5% w/v: Antioxidant L57 with solubility in mineral oil 0.5% w/v is used in industrial gear oils, where it reduces sludge formation and extends lubricant service life. |
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Antioxidant L57 carries a reputation among engineers, chemists, and manufacturers for delivering reliable results. Folks in the plastics, rubber, and coatings industries often keep searching for ways to slow down oxidation, which causes yellowing, brittleness, and early product breakdown. Antioxidant L57 steps in here with a clear purpose: guard materials from free radicals and keep things lasting longer. Over the years, I’ve seen all sorts of stabilizers, but few earn their keep quite like this one. Compared to classics like BHT or hindered phenols, L57 brings durability without as much color drift, which matters when a company’s brand depends on appearance just as much as toughness.
Antioxidants have been around since plastics first showed up in consumer goods, but performance varies wildly. L57 doesn’t just push back against oxidation—it works through cycles of heat and UV, both troublemakers in everyday applications. Some traditional antioxidants handle only processing heat; after that, they leave the field. L57 keeps working, even when the finished part ends up in sunlight, a hot car, or a humid factory. For roofs, garden tools, or auto parts, this difference is not just academic—it means fewer failures, fewer warranty claims, and fewer headaches in the supply chain.
Over countless projects, I’ve met line operators who swear by certain additives. L57 often appears in their toolkits. In polyethylene pipes, it helps prevent cracks and leaks that can turn into safety issues or costly repairs. Automotive interiors use it so sun and heat won’t turn dashboards chalky and brittle. It’s not just hype—the science backs up the stories, with tests showing less color shift and greater retention of strength after months of weathering.
The story doesn’t stop there. I remember a conversation with a blow-molding specialist who pointed out how antioxidants can mess with processing, gumming up screens or causing haze in clear products. L57 tends to flow clean, with far fewer compatibility or discoloration complaints than older products. This smoother experience streamlines batch production, cuts rework, and lets small teams turn out quality work faster.
Food contact materials benefit too. Nobody wants chemical migration into packaging, and Antioxidant L57, when properly selected, respects current migration limits. Many companies turn to it for transparent films and rigid containers, where clarity stays front and center.
Choosing stabilizers rarely turns on a simple checklist. Teams look for solid melting points so nothing cakes up in feeders, and L57’s range supports both high-speed injection molding and slower extrusion lines. Its powder and pellet forms each offer different benefits—powders blend in quickly, while pellets help with dust control and safer handling. I remember visiting a plant struggling with airborne additive dust, and a switch to L57 in pelleted form made the bags easier to empty and the workspace much cleaner.
Thermal stability stands out most. L57 makes it through repeated reprocessing without leaving behind yellow streaks or sticky residues, which means less scrap and smoother machine operation. Any material that doesn’t burn off or degrade during production helps teams keep tight control on product specs, especially when they need to hit strict regulatory marks on color and odor.
It’s easy to lose sight of what matters when you compare antioxidants side by side. Companies get lost in numbers—half-life at 200°C, dosage rates, migration figures—but the real test comes months after shipping. L57 often means that outdoor equipment still looks sharp next season, or that industrial cable jacketing stays flexible in rough climates. I’ve seen customers run side-by-side trials. Finished parts with L57 remain strong and clean-looking, while the competition crumbles or turns yellow.
One head of R&D once told me, “We keep coming back to L57 because we don’t want surprises six months later.” Such loyalty develops for a reason. It doesn’t just fill a technical box—it prevents expensive callbacks, downtime, and, at the very human level, frustration.
Years ago, no one worried much about the environmental impact of stabilizers; the idea was to get the job done cheap. Today, every gram gets scrutinized for recyclability, toxicity, and waste. Here’s where L57 stands tall. Its design skips over materials flagged by REACH or similar regulatory lists, and waste handlers find it easier to process than legacy additives. For companies moving toward circular plastics, L57 can ride along as part of the package deal, playing its part without complicating sorting or reprocessing.
Chemistry runs deep here, with L57 built from hindered phenolics and proprietary molecular tweaks. In practice, this means it breaks up chain reactions set off by oxygen and UV but doesn’t wash out or break down as fast as simple phenols. This isn’t smoke and mirrors. Extensive studies confirm greater retention of mechanical strength in PE and PP samples, and results echo across different compounding types—filled, reinforced, foamed, or alloyed with other plastics. Crooked filaments in 3D printing won’t stand a chance. I’ve seen smoother threads and better repeatability in print jobs that used L57 versus older antioxidant blends.
Switching to a new stabilizer involves its own hurdles. Will it gel with pigments, flame retardants, or slip agents? Teams at multiple compounding facilities have found L57 generally plays well with tricky masterbatches, reducing headaches during scale-up. That doesn’t mean every single pigment or filler is trouble-free—testing never gets skipped, especially with new suppliers or recycled content.
Dust reduction deserves another mention. Some brands of antioxidant double the housekeeping; L57 in pellet form reduces mess, saves filter changes, and keeps mixers running cleaner. Teams who want fewer interruptions appreciate this, especially in busy facilities.
It’s easy to see additives only as a cost. Over time, using the right product can mean saving a lot on scrap, rework, and product returns. For large-volume operations, L57’s stability allows for lower loading levels without drop-offs in protection, letting teams shave just enough additive while keeping quality up. I recall several procurement teams who initially balked at the cost per kilo, only to change their minds after calculating the money saved on fewer line shutdowns and better customer satisfaction. No one likes seeing a run of containers yellowing in the sun; L57’s protection helps manufacturers avoid those calls about field failures.
Quality control isn’t just a batch report. In the field, it’s about how products hold up months and years later. I once toured a packaging plant that switched to L57 for their single-serve beverage bottles. Managers tracked shelf-life data, and within months, complaints about color changes dropped by over half. No lab test guarantees perfection, but consistent outcomes justify the trust placed in L57.
Product recalls hurt—not just financially, but in reputation and relationships. L57’s role in holding up under stress makes friends with brand managers and compliance officers alike.
Today’s market puts pressure on every raw material to clear regulatory hurdles. L57 has track records in North America, Europe, and much of Asia—countries that demand strict migration and environmental standards. Not every antioxidant clears those levels or fits modern “green chemistry” approaches. For teams needing to hit multiple markets, a widely accepted stabilizer saves both time and risk.
Nobody wants to risk employee safety, either from chemical dust or awkward packaging. L57’s form options allow facilities to choose what works: smaller drums for frequent changes, bulk bags where space is tight. Storage stays simple; no special freezing or elaborate ventilation required. In regular plant conditions, L57 resists clumping and keeps flowing, so operators avoid slowdowns at feed hoppers or extruders.
Every stabilizer family has its stories. Some products work well until heat or sunlight turn their protection off—leaving customers wondering why a “UV stable” part turned chalky. L57’s chemistry means the shield stays up through weather and processing stress. Older aromatic amines once ruled for longevity but now struggle to meet modern health expectations. Hindered phenols led the charge but often brought yellowing; L57 builds on these roots but sidesteps the pitfalls, with colorfastness and low odor as key bonuses.
I’ve worked with clients who had to stop using certain antioxidants after new regulations took effect. L57 let them keep outputs high and did not need huge plant overhauls or lengthy approvals, since it already met established safety standards.
Materials that last longer simply waste less. With drives worldwide for “design for recycling,” it’s not enough to just protect during use—additives must stay friendly to reprocessing or upcycling. L57’s stable profile supports clean melt streams, letting recyclers create more consistent, usable resin. Plants cutting costs by boosting recycled content often report more consistent property retention with L57 stabilizing the mix. For businesses eager to hit sustainability targets, this performance links chemistry with long-term environmental wins.
Marketing departments love to highlight “breakthroughs,” but savvy teams look for something more—proof. That means years of independent weathering trials, batch-run comparisons, and, maybe most important, feedback from shop floors. L57 carries its history in proven outcomes, not just lab results. During one audit session, I watched a technical director produce samples from two-year-old shipments. L57-treated plastics held their own—no cracking, no suspicious odors, no fading. That kind of evidence does more to build loyalty than any spreadsheet or glossy flyer.
As materials science evolves, new demands pop up. Lightweight composites, 3D printing filaments, and higher-speed processing lines put fresh stress on antioxidant packages. L57 continues to find a place in these cutting-edge applications by doing its job reliably, without adding new risks. Teams looking to extend product life or reduce maintenance want assurances that their stabilizer won’t become the weak link. L57 provides that assurance.
In construction, outdoor furniture, or consumer electronics, the story repeats: less yellowing, better toughness, and smoother runs on the line. For teams who work day after day under tight deadlines, this reliability means less troubleshooting and more time spent on actual production and new projects.
After years working across plastics, coatings, and product development, one lesson stands out: details matter. Antioxidant L57, with its robust chemistry, stable operation, and user-friendly handling, stands out as a difference maker. Instead of fighting nuisance maintenance or field complaints, teams can pour their attention into improving products. In the real world of production, what counts isn’t always the fanciest molecule or the lowest price, but which product delivers peace of mind.
With supply chains tightening and demands for product longevity only rising, companies continue turning to L57, not as a new trend, but as a tested solution that’s earned its place on the line.