|
HS Code |
284749 |
| Product Name | DSunsorb UV-400 |
| Chemical Type | UV Absorber |
| Appearance | Light yellow powder |
| Cas Number | 153519-44-9 |
| Molecular Weight | 448 g/mol |
| Melting Point | 135-137°C |
| Solubility | Soluble in organic solvents |
| Application | Plastics, coatings, adhesives |
| Recommended Dosage | 0.1-1.0% |
| Light Stability | Excellent |
| Storage Temperature | Cool, dry place |
| Purity | ≥ 99% |
| Volatility | Low |
| Toxicity | Low |
| Color Stability | Good |
As an accredited DSunsorb UV-400 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | DSunsorb UV-400 is packaged in a 25 kg blue HDPE drum, featuring a secure seal and product labeling for safety and identification. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for DSunsorb UV-400: Typically loads 8-10 metric tons, packed in 25kg fiber drums on pallets, maximizing space efficiency. |
| Shipping | DSunsorb UV-400 is shipped in tightly sealed, high-density polyethylene (HDPE) drums or containers to prevent contamination and moisture ingress. Each package is clearly labeled with safety and handling information. Transport complies with local chemical regulations, ensuring safe transit. Store in a cool, dry, and well-ventilated area upon arrival. |
| Storage | DSunsorb UV-400 should be stored in a tightly closed container in a cool, dry, and well-ventilated area away from direct sunlight and sources of ignition. Keep it away from incompatible materials such as strong oxidizers. Ensure the storage area is equipped with spill containment and proper labeling. Avoid exposure to moisture and extreme temperatures to maintain product integrity. |
| Shelf Life | DSunsorb UV-400 has a shelf life of 2 years when stored unopened in a cool, dry place away from sunlight. |
Competitive DSunsorb UV-400 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
Flexible payment, competitive price, premium service - Inquire now!
Every batch we run offers lessons the textbooks don’t mention. After decades developing and refining UV absorbers, we know no two product lines handle sunlight the same way. DSunsorb UV-400 didn’t come from generic formulations—it resulted from years spent tweaking molecular structures at the bench, tracking field test returns, and working right alongside processors in plastics, coatings, and adhesives. What distinguishes this product from the options flooding the market is not just its performance but also the depth of practical know-how behind every drum.
Pressure from UV damage is relentless in finishing applications. Surface yellowing, chalking, and brittleness have eaten up enough of our customers’ budgets over the years to make short-lived products unacceptable. DSunsorb UV-400 steps up against this challenge, leveraging hydroxyphenyl triazine chemistry with a molecular layout designed for both transparency and efficiency. Many end users worry about clouding in optical applications or gloss reduction in film or polycarbonate sheets. Our synthesis process for DSunsorb UV-400 minimizes visible haze, allowing its use in light-sensitive materials and premium clear coatings.
The granularity of our process control means impurities stay out, and consistency stays in. Each batch receives in-house UV-Vis absorption benchmarking, comparing light transmission and cut-off points against the industry’s leading reference standards. DSunsorb UV-400 blocks critical wavelengths near 400nm, which means stronger protection against high-energy light than earlier benzotriazole absorbers or substitutions that taper off in the upper UVA range.
Shops working with tough automotive coatings or engineers specifying materials for architectural glazings bring us their biggest frustrations. Early feedback wanted higher heat stability—so as the manufacturer, we built in thermal resilience up to 350°C, improving process flexibility and allowing compounders to run hotter cycles without worry. That’s not just a specification—our lab technicians have repeatedly observed side-by-side extrusion runs, noting color stability and mechanical performance over time. DSunsorb UV-400 keeps its structure longer under heat, leading to less degradation and lower yellowing indexes over sustained exposure.
Customers running UV absorbers in polycarbonate sheets, acrylics for retail installations, or films in electronics report a narrower shelf stability variation since switching to our product. Keeping batch drift low means less factory downtime. Because we are the chemistry lab, the plant, and the QC operation, process hiccups and variation points get addressed almost immediately. Users gain not just a chemical but a production partnership, with ongoing support if specific blending, dosing, or process integration issues arise.
DSunsorb UV-400 sets itself apart on real-world results: its main absorption peak lies right near the solar spectrum’s most damaging edge, at 400nm. This makes it especially qualified for high-clarity applications, where traditional benzophenone or benzotriazole based absorbers show declining performance. Our customers manufacturing films for automotive window laminates or glazing for high-end construction projects report stronger retention of mechanical impact strength and less photo-initiated discoloration year after year.
We’ve run accelerated aging studies alongside customer QA leads, exposing polymer samples to continuous cycles of UV and thermal conditions. Hundreds of real samples, not just lab coupons, show DSunsorb UV-400 stops early yellowing and reduced impact strength better than traditional UV absorbers. Unlike some compounds that migrate or volatilize during extruding or molding, our material’s mass loss remains minimal at elevated processing temperatures, which we confirm with each outgoing lot.
After spending years inside the industry, it’s clear: no one needs more complicated solutions—people need reliability without unexpected downstream effects. DSunsorb UV-400 slides seamlessly into masterbatches for extrusion, into clear or pigmented coatings for flexible or rigid substrates, and into high-gloss sheet manufacturing, without disrupting process flows or surface finish. Optical-grade performance lays the groundwork for use in LCD panels, vehicle headlamps, and transparent architectural panels.
Typical loading rates our customers use start around 0.1–0.5 percent by weight in most thermoplastics, but our support chemists can adapt these recommendations based on the target lifespan, material type, and exposure intensity. We often find new application areas during open discussions with process engineers who need just a notch higher UV protection or less haze in their next high-clarity product. Direct feedback from our partner coatings formulators revealed that DSunsorb UV-400 works particularly well alongside HALS and antioxidants, reducing the need for frequent reformulation or adaptation in existing product recipes.
Safety, consistency, and regulatory fit are daily priorities, not marketing claims. Our DSunsorb UV-400 sits within updated industry regulations for hazardous material handling and import/export, including compliance with RoHS and REACH. No batch leaves our plant without UV-spectrum certification and a rigorous impurity profile scan. These certificates come not from external labs, but from our in-house QC chemists, who operate equipment calibrated and verified during every maintenance cycle.
Waste management and emissions control influence how we design and improve production. In the last five years, solvent recovery rates during DSunsorb UV-400 manufacture reached above 97 percent. That effort lowers our impact and supports regulatory commitments. Our continuous improvement team works closely with environmental auditors and process engineers, integrating new data on safe material use and shelf-life logistics to reduce downstream waste in customer facilities.
There’s plenty of overlap in product sheets floating around, but few chemicals match the transparency and thermal resilience of DSunsorb UV-400. Traditional benzophenones, for instance, start to lose performance at high compounding temperatures and often leave traces of unwanted yellow color in clear substrates. We undertook side-by-side resin extrusions and found that DSunsorb UV-400 left sheet color index well below the industry cut-off, even after repeated UV oven cycles.
What about migration? Cheaper absorbers sometimes leave films with “frosting” or stickiness after lamination or under field exposure. Our customers ran 2000-hour lightfastness tests and recorded minimal exudation or loss in surface properties, which signals strong binding within the host material matrix. DSunsorb UV-400’s hydrophobic backbone was developed specifically to resist leaching—not as a sales point, but as a response to problems encountered by customers in the field.
We compare lot-to-lot using not just absorption curves, but functional outdoor durability trials: plastic panels exposed to full sun, weather, and cycles of cleaning. Those markers, rather than lab-only numbers, reflect what buyers actually see. Several times, clients reported downtime and costly product recalls from batches of generic absorber with variable active content. Our vertically integrated QC, direct line to manufacturing, and documented process analytics cut those risks to nearly zero.
We don’t just ship chemicals—our chemists and technical liaisons visit production lines to troubleshoot challenges and help perform initial dosing, blending, or switchovers. Most customer queries arrive not as theoretical problems, but as urgent calls from factory managers stuck with a bad batch or aggressive field failure rates. We see the patterns. Introducing DSunsorb UV-400 into their pipeline resulted in fewer returns, steadier output, and stronger end-customer satisfaction.
Open lines between customer production managers and our in-plant teams mean troubleshooting gets direct attention. Instead of templated documentation, we build technical support around the exact polymer type, the real-world process temperatures, and application requirements. The result is a flexible approach to integrating DSunsorb UV-400, not just a product drop-off.
Our team hears from customers experiencing unforeseen changes—market shifts, tighter regulations, end-user complaints about haze, or shifts in customer color preferences. Because we operate the full production chain, we respond quickly with either recipe updates, tailored blends, or guidance on compatible additive packages. Technical data, shipment documentation, and regulatory support come from the same team that oversees daily drum filling and quality checkpointing, not a remote distributor desk. That agility translates into fewer surprises for every link in the supply chain.
Regulatory pressure on material safety, the ubiquity of lightweight clear plastics in architecture and transportation, and the growing outdoor consumer goods market have all moved the UV absorber landscape beyond yesterday’s generic solves. Product designers need better performance using lightweight, high-clarity plastics that must resist yellowing, cracking, or haze for years. As manufacturers, we field performance requirements directly from OEMs, fabricators, and converters—and DSunsorb UV-400 was specifically engineered around those shifting industry benchmarks.
Recent environmental frameworks push us to minimize additive migration and potential leaching. This calls for better intrinsic compatibility and molecular retention inside the host material, traits we built into the DSunsorb UV-400 molecule after customer and regulatory feedback. Strict regional targets for non-toxic, long-life materials are no longer optional but required, and our direct product development cycle reflects that urgency.
More than a decade of feedback cycles from production shop floors, research groups, and outdoor exposure trials shapes what goes into each incoming improvement. Test data on DSunsorb UV-400’s heat and light stability, migration rates, and shelf-life under storage guide every change made to process recipes. Failed lots or suboptimal performance reports go straight to our development team—as the chemical manufacturer, recurring issues mean direct accountability and drive us to redesign solvents, purification stages, or packaging if necessary.
Energy reduction, emission control advances, and waste stream minimization move alongside product efficacy goals. This mindset has produced better batch control, higher product yields, and smaller environmental footprints, making DSunsorb UV-400 more appealing for clients under stricter international audits or shifting environmental standards.
Production doesn’t stop for theoretical ideal conditions. We regularly handle equipment swings, variation in plant feedstocks, and requests for fast-turnaround modifications. Practical integration of DSunsorb UV-400, from first trial to high-volume run, prioritizes keeping customer lines up and product returns down. Our technical team maintains ongoing support—even years after the first order. If an unusual substrate shows signs of incompatibility, or if a novel application pushes beyond standard performance limits, the manufacturing team steps in with modification advice or blend recommendations.
We keep a live database of customer production and weathering outcomes, which helps diagnose and prevent recurring issues with specific resin grades or exposure conditions. Problems aren’t managed through layers of intermediaries—our in-plant support crafts targeted solutions without roundabout communication. This real-time connection underpins the reliability and trust customers associate with DSunsorb UV-400.
The demands for more transparent, more resilient, and longer-lasting materials continue to grow. Designers and processors want answers to challenges like heat distortion, long-term clarity, and lower overall chemical exposure for both workers and end-users. We don’t see the job of UV absorber development as finished—each round of feedback, regulatory change, and product trial reshapes the priority list on our lab bench.
Our process remains open: real performance trials lead to targeted product evolution, not generic reformulation. As new polymers enter the market and as outdoor exposure intensifies due to climate factors, DSunsorb UV-400 continues evolving. We invite ongoing feedback to drive iterative change rather than “set it and forget it” manufacturing.
DSunsorb UV-400 reflects years of ground-level chemical engineering, iterative troubleshooting, and direct alignment with customer needs. As the manufacturer, we bring not just the technical data, but the hands-on integration experience and quality transparency that only a fully controlled supply chain can deliver. This material stands not as another line item but as a documented, tested, and trusted option built on continuous customer engagement and full production accountability.
Customers seeking to minimize downtime, rejected lots, or unpredictable field failures have found DSunsorb UV-400 to be more than just a chemical—it’s a solution intertwined with our experience and commitment to ongoing partnership and technical rigor. We take pride in making each batch count, because after years on the manufacturing side, we know that reliability, shared knowledge, and immediate response make all the difference for polymer technology in a world facing ever-evolving sunlight and environmental demands.