|
HS Code |
123652 |
| Chemical Name | 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol |
| Cas Number | 3147-75-9 |
| Appearance | light yellow powder or granule |
| Molecular Formula | C29H29N3O |
| Molecular Weight | 435.57 g/mol |
| Melting Point | 137-141°C |
| Solubility | insoluble in water, soluble in organic solvents |
| Uv Absorption Max | 304 nm |
| Applications | plastics, coatings, adhesives, fibers |
| Thermal Stability | good up to 350°C |
| Light Fastness | excellent |
| Recommended Dosage | 0.1% - 0.5% by weight |
| Compatibility | compatible with most polymers |
| Shelf Life | 2 years in cool, dry conditions |
| Storage Conditions | store in tightly closed containers, avoid direct sunlight |
As an accredited UV-405 UV Stabilizers factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for UV-405 UV Stabilizers features 25 kg fiber drums, lined with polyethylene bags for moisture protection and easy handling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): UV-405 UV Stabilizers are packed in 20-foot containers, typically accommodating 10-12 metric tons per container. |
| Shipping | UV-405 UV Stabilizers are shipped in tightly sealed, moisture-proof containers to ensure product stability. Packaging typically includes fiber drums or plastic containers, each lined with polyethylene bags. During transit, the material is protected from direct sunlight, heat, and moisture. Appropriate labeling is included to meet regulatory and safety requirements. |
| Storage | **UV-405 UV Stabilizers** should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly closed and avoid exposure to moisture. Ensure storage facilities are equipped to prevent contamination with incompatible substances. Appropriate safety labeling and secure placement minimize risk during handling and storage. |
| Shelf Life | UV-405 UV Stabilizers have a shelf life of 12 months when stored in cool, dry conditions, tightly sealed, and away from sunlight. |
Competitive UV-405 UV Stabilizers 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.
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Tel: +8615365186327
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Every page that brings our UV-405 UV Stabilizer to your attention speaks for a generation of chemistry learned at the reactor, not in the boardroom. Developing this product demands years on the production floor, not just a quick scan through generic trade catalogs. We don’t just fill containers and ship them off. We monitor the process from raw resin selection, all the way through multi-stage purification. Our people stand over the cooling tanks, check the formation of fine powders, and test every batch. Each lot that leaves our plant meets the production plan because our own teams use, test, and calibrate the material against the real expectations of compounders who want visible results where life happens—in sunlight, rain, or heavy use.
Markets often talk about sun resistance, but for those mixing masterbatch, making automotive plastics, or building outdoor panels, UV-405 has proven itself where degradation turns into real-world complaints. We’ve spent enough time around the line to recognize that unprotected resins fade, crack, and weaken. Faulty UV stabilizers don’t just fail to prevent color loss—sometimes they lead to sticky mold releases, dusting, or poor compatibility that cause immense downstream problems. That history shapes our approach to UV stabilization.
Our UV-405 model takes a physical form suitable for dust-minimized transfer, meaning blend operations run smoother, and plant workers experience less airborne exposure. Design comes with practical knowledge: dispersibility in both polyolefins and engineering polymers, clear tracking of absorption in the 320–400 nm range, and consistency in melt. The result: you pull full mechanical life from plastics exposed to sunlight, from irrigation pipes in drought-struck regions, to panels on stadium roofs, or flexible packaging that sees more than one monsoon.
If you have shifted from one stabilizer supplier to another, you already know the process kinks that show up. Inconsistent particle size creates transfer headaches—product bridges in feeding lines, plugs up side feeders, or pulls incorrectly through fine-mesh screens. We’ve been through every hassle, patching lines at three in the morning, recalibrating feeders, or opening extruder panels in the middle of a busy run. That’s not just lab theory—it’s our day-to-day. The UV-405 powder is produced for smooth flow, minimal clumping, and compatibility with both automated loading and hand batching.
Blending this stabilizer does not demand excessive carrier resin or tricky pre-compounding. This saves producers resin and energy, freeing up throughput and avoiding wasted capacity. Our customers report clean online performance—extruders run evenly, mold deposits don’t increase, and finished goods cut waste. And that detail matters, because downtime and rework costs stack up quickly once you’re into full production.
Each time the market brings a new film or sheet grade, someone tries to cut costs by buying lower-quality stabilizers from secondary sources. It’s tempting—invoices drop, and margins look better. Problems always seem to surface later: brittle failure, yellowing, haze in engineering materials, or odor in flexible films. Fixing those issues isn’t just switching stabilizer packages; most of the time, you’re fighting off angry customers, downtime, and unplanned replacement runs.
With the UV-405 model, we’ve honed both purity and batch-to-batch consistency. We use multi-step filtration and control over trace-metal residues—especially nickel, copper, and manganese, which can catalyze unwanted polymer degradation. Not every stabilizer on the market gets this level of attention. We have spent years retooling reactors, developing high-shear dispersing, and running pilot batches until we hit lines that hold, even in tough weather environments.
If you are comparing stabilizer numbers, UV-405 stands apart from basic benzotriazole and triazine blends on three points that matter for plant managers and compounders. The first is its broad-spectrum absorption in the area where most plastics are vulnerable. We have measured lifetime color and physical property retention both in accelerated QUV tests and in open-site weathering, from equatorial sun to cold-dry regions—whereas conventional UV inhibitors flatten out in performance after the first six to twelve months.
The second critical advantage is low volatility, even at the highest processing temperatures in polycarbonate and polyester. In high-heat molding—whether blowing large water tanks or molding vehicle headlamp covers—loss from volatilization never matches the complaints we see from less robust grades. This means no fogging on surfaces, no loss within extruder barrels, and no post-mold odor. Our technical staff monitors every production run to keep volatiles within a tight, customer-expected window.
Third, practical usage tells us that real-world compatibility wins over theoretical catalog recommendations. UV-405 embeds evenly in both filled and unfilled resins, with less risk of pigment or additive interaction. Film extruders in our client base—especially those working with recycled content, or high white loadings—have stuck with UV-405 because it doesn’t destroy processing margins or appearance. These are not paper claims; our engineering teams bounce between facilities just to keep up with different base resin sources and seasonal pigment changes.
Every year, we work hand-in-hand with teams rolling out geomembranes for reservoirs, greenhouse films for growers, automotive dashboards under searing heat, and outdoor siding that takes whatever the climate can throw at it. Even as standards shift and performance bars rise, the backbone of our UV-405 stabilizer doesn’t break. Agricultural films run for multiple crop cycles before surface breakdown. Playground pipes and tubing hold color and bend, even after years in the open. These results come from customers who run side-by-side tests and report back—sometimes with pictures, samples, or new challenges.
Additive demand doesn’t come from a marketing team—it is born in those moments after the first signs of surface chalking. Our in-house testing facilities run both ASTM and ISO protocols, but we never rely solely on internal metrics. Real stress comes from the shipments that arrive at customer docks in high summer, the open-air storage, the changes in ambient humidity, and the shipment holdbacks caused by customs or late payments.
Those external variables push many companies onto risky ground. Missed shipments or off-spec batches can push a film producer or injection molder to the brink of customer loss. We stepped up over long weekends, rushed priority batches, and walked production lines to see firsthand the breakpoints on stabilizer blends. That patience and familiarity drives every new formula revision and adjustment.
We have always measured performance not by theoretical half-lives but by how often a compounder returns to us for repeat orders. Lighting, automotive, building products, agriculture—they all punish resin in unique ways, and they each expose the strengths and weaknesses of every stabilizer option. We rarely see two lines with identical needs. Some want extreme resistance to yellowing in clear films. Others need anti-chalking, even after years of UV bombardment. Our backbone—real field monitoring—pushes UV-405 to perform across those challenges.
Every time a new regulatory guideline comes into play, whether that’s about allowable extractables or migration limits for food-contact materials, we run cross-checks against our internal data and send out new compliance sheets. Markets move fast, so our laboratory teams keep up with changes in the EU, North America, and emerging regulations in Asia. Fast decisions can prevent halted shipments and quarantines, which impact months of planning for extrusion and lamination shops. We continue to shift the chemistry to meet current and upcoming standards, and keep our team actively involved with both local and international compliance bodies.
Most people think stabilizers are plug-and-play, but material science isn’t that forgiving. The chemistry behind UV-405 rests on controlled substitution patterns in its molecular backbone, which gives it better thermal and UV resilience without causing plate-out on tooling or changes in rheology. We watched competitors' products foul up high-output machinery during endurance runs—injectors stick, film dies cake up, and the processing line halts. We still field calls from line engineers who slept in their facilities during trial runs—coolers humming, plastic melting, and vent fans running after midnight.
Every kilo of UV-405 we sell mirrors the lessons of those long days. The stabilizer comes out true, batch after batch, and carries low levels of inorganic fillers that might otherwise play havoc with sensitive alloys or high-gloss surfaces. Rigorous spectrographic analysis at every stage—starting with incoming monomers and ending with packaged product—gives a transparent trail for customers who want assurance, not smooth sales talk. Those same standards guard against legacy problems in automotive interiors—odorous outgassing, surface hazing, or electrostatic attractants—that cost real money in warranty replacement and customer dissatisfaction.
Prices shift almost daily with feedstock volatility, regulatory changes, and logistics snags. We learned long ago that stability of product quality beats any minor cuts in price, especially for OEM manufacturers counting on multi-year contracts and quality audits. UV-405 isn’t the sort of additive that you swap with each market swing. Switching mid-run or late in the season creates headaches for everyone—color matching needs reset, extrusion profiles drift, and final part performance drops to question marks.
To maintain reliability, we audit our production lines monthly, test blends from sample shipments, and listen closely to complaints—no matter how small. Sometimes, just one batch of raw materials off-spec can undercut weeks of planning. Our own internal scrap pile shows, in black and white, what a missed check causes. We save that data, and we drive our suppliers through the same quality hoops expected of ourselves.
Long-term, it’s not about introducing new additive models every quarter, chasing trends, or adding fillers that gum up the process. Real users know which packages perform, and they call for the right stabilizer before the next quarter’s shipment, not the cheapest experiment on the market. UV-405 continues to earn its place because it blends practical endurance with the cost-control and handling benefits our customers need, not just polished promises.
We have spent decades watching the sun beat down on agricultural fields, new roads, and exposed structures. Out here, nature punishes shortcuts. UV-405 finds its main job in those places—holding firm where others give up. Greenhouse operators come back because the films stay clear season after season. Sheet extruders appreciate the run-time improvements and the lack of buildup in their barrel vent lines. Textile and nonwoven producers see reduced yellowing and fiber strength that holds up in tests and in use.
We keep a tight relationship with makers across the globe—as partners, not just clients. We sent technical teams to Africa when reservoir linings started failing under high-altitude sun. Our feedback loop runs both ways, and we adjust formulation based on customer evidence and local weather, not just simulation. This helps ensure nobody faces the stock-outs, appearance failures, or warranty claims that cheaper stabilizer packages bring.
While test tubes and spectrophotometers matter, nothing replaces a phone call or a field visit. Our chemists and product managers still walk end-user lines with a notebook, collecting trouble spots and sharing process guidance. We built UV-405’s current formula on input from the world’s toughest installations because failure can crash a customer’s business in just a few bad lots.
Every new stabilizer is greeted with hope by engineers and suspicion by production managers. Years of supporting the UV-405 model lets us prove—batch by batch—that the material stands up to both scrutiny and stress. Real users—film lines, automotive molders, extruders for roofing and siding—all return with clear data: tensile retention after years in the field, color delta through repeated sun exposure, anti-chalking in calcium-rich films, or fade resistance in transparent sheets.
Responsible manufacturing means standing behind shipments every season. If a truckload shows a drift in melt point or fails appearance controls, we don’t dodge calls or blame someone else down the supply chain. Our quality labs pull retention samples, test independently, and support customers with open, honest feedback. This is not just compliance—these are the ground rules of plastics:
Some products offer promise; the real worth shows in how many production cycles you get before line managers call for a change. UV-405 doesn’t come with bold claims unsupported by real runs and site visits. Manufacturers who need repeated color stability, stress retention, and clean melt profiles build it into their extrusion recipes for the long haul. We stay engaged, listening for feedback, working out fresh blends when resin sources change, or pigment packages demand more robust protection.
The wider plastics market remains crowded. New entrants promise everything at once—superior price, magical properties, easy integration—but truth sits in the performance after two years in the sun, or in the absence of customer complaints five years down the road. Trusted stabilizer chemistry emerges where engineering and experience meet. UV-405 continues to win out not by being the cheapest, but by supporting every person along the production chain—from the compounding line to the packaging operator, and finally the field technician installing or using the part.
Our commitment isn’t just about what leaves our doors; it’s about making plastics stand up to real life. By combining science, field experience, and customer-driven adjustments, we keep UV-405 at the reliable core of UV protection for every industry that can’t gamble on cheap shortcuts. If your lines demand the best shot at longevity and appearance, our record in manufacturing and support stands ready.