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All Right Reserved
|
HS Code |
412981 |
| Chemical Class | Organic compounds |
| Primary Function | Absorbs ultraviolet (UV) radiation |
| Appearance | Powder or liquid |
| Color | Typically white or off-white |
| Melting Point | Varies; commonly between 100-200°C |
| Solubility | Soluble in organic solvents |
| Thermal Stability | Good, stable up to 300°C |
| Applications | Plastics, coatings, adhesives, cosmetics |
| Uv Absorption Range | Typically 280-400 nm |
| Toxicity | Generally low, but depends on type |
| Compatibility | Compatible with many polymers |
| Regulatory Status | Subject to local chemical regulations |
As an accredited Ultraviolet Absorbers factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ultraviolet Absorbers are packaged in 25 kg fiber drums, securely sealed with inner polyethylene liners for moisture and contamination protection. |
| Container Loading (20′ FCL) | 20′ FCL loading: Ultraviolet Absorbers are packed in securely sealed drums or bags, maximizing container space for safe, efficient shipping. |
| Shipping | Ultraviolet Absorbers are shipped in tightly sealed, clearly labeled containers to prevent contamination and moisture exposure. Transport must comply with relevant safety regulations, including protection from extreme temperatures and direct sunlight. Proper handling is essential, with suitable documentation provided to ensure safe storage and use upon arrival at the destination. |
| Storage | Ultraviolet absorbers should be stored in tightly sealed containers, away from direct sunlight, heat sources, and moisture. The storage area must be cool, dry, and well-ventilated, preventing exposure to incompatible substances such as strong oxidizers. Proper labeling is essential, and the chemical should be kept out of reach of unauthorized personnel to ensure safety and maintain product stability. |
| Shelf Life | Ultraviolet absorbers typically have a shelf life of 1-2 years when stored in cool, dry, and tightly sealed conditions. |
Competitive Ultraviolet Absorbers 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!
At our chemical manufacturing plant, ultraviolet absorbers have become one of the cornerstones of our specialty additives portfolio. Drawing from decades of experience blending organic and inorganic chemistries, our technical team has seen firsthand what ultraviolet (UV) radiation can do to finished materials. Whether it’s a transparent polymer that starts yellowing after weeks of sun exposure or a glossy automotive paint that turns brittle and chalky, UV degradation chips away at performance, customer trust, and product lifespan one photon at a time.
We’ve responded to these challenges by developing a line of ultraviolet absorbers that aligns closely with the real-world conditions faced by engineers and product formulators. Each grade addresses different substrate types, process temperatures, end-use requirements, and regulatory environments. With firsthand access to manufacturing steps from raw material synthesis all the way through to final powder or liquid package, we’re able to tune each model with a focus on performance, reliability, and integration ease.
Our introduction to UV stabilizers began in the mid-1990s. Resin producers across Asia and Europe started reporting that even premium polymers like polycarbonate and acrylic were suffering crack propagation, loss of transparency, and surface embrittlement. Outdoor furniture brands, greenhouse sheet manufacturers, car component suppliers, and fiber optic cable sheathers were all searching for a solution. We realized quickly that a single additive couldn’t fit every need.
In a controlled test at our application laboratory, we exposed untreated PC plaques to simulated sunlight. In less than three months, the plastic lost more than 25% of its impact strength. The change was even more pronounced in PET and PMMA films destined for harsh outdoor climates. We tried off-the-shelf UV absorbers, but found most generic grades delivered inconsistent results due to low purity, hidden impurities, and batch-to-batch variations.
Our response: a ground-up approach where we synthesize, purify, and blend each UV absorber at our own facilities. We use robust, traceable supply chains and strict in-process controls to maintain color stability, loading accuracy, and handling safety across every shipment.
We’ve focused our development around several key models, with each favored for its effectiveness in particular environments:
Our pilot lines can produce test lots across several formats: fine powders for dry blending; microgranules for improved metering; and dust-free liquid dispersions for continuous dosing. This range supports both small-batch R&D and full-scale production, with each format engineered to minimize waste and maximize throughput.
Experience in high-volume manufacturing has taught us that one UV absorber is not interchangeable with another. Structure determines absorption profile and chemical stability, and both affect how the additive interacts with the final product. For example, UV-326 and UV-1577 can handle different thermal windows, meaning one works better in PVC piping extrusion while the other gives longer-lasting protection in polyester fiber spinning.
On site, our QA lab routinely sees incoming competitor samples that suffer from inconsistent granulation, excessive dust, or impurity peaks in HPLC traces. These flaws complicate blending, create batch streaks, or cause cloudiness in transparent resins. Because our entire process stays in-house, our customers get tighter particle size ranges, verified purity, and minimal contamination from heavy metals, sulfur, or halogen residues.
A key differentiator lies in heat stability. Many imported UV stabilizers degrade or volatilize at the higher processing temperatures common in modern high-speed extrusion, leaving downstream users with discoloration, odor, or even safety recalls. By contrast, our UV-1577 and high-purity UV-326 withstand temperatures up to 330°C, surviving multiple cycles without compromise.
Most laboratory tests rely on artificial weatherometers and accelerated UV exposure. While these simulate harsh conditions, field testing often tells a more complete story. On a recent project with an agricultural film customer, we supplied a custom blend of UV-3853 and HALS (hindered amine light stabilizer). After two summers under open sky in southern Spain, test films not only kept their mechanical properties but also showed less than 10% haze increase compared to control samples, while regular films in the same setting failed in under a year.
Another client in the automotive sector approached us after repeated issues with roof moldings turning chalky and discolored within just 18 months. We worked directly with their engineering team, testing both UV-1577 and UV-326 in parallel across polymer blends. Using our in-plant compounding equipment, samples prepared with UV-1577 retained original gloss and color far longer under heat and sunlight cycles.
High-speed cable insulation lines present another challenge. Rapid extrusion demands a UV absorber that does not degrade or discolor the resin at over 300°C, and one that stays compatible with flame-retardants and antioxidants. Here, we deploy a series of hydroxyphenyl triazines from our own synthesis, allowing for finer tuning based on the insulation’s wall thickness and geographical end-use.
Having direct control over our production means we can push every batch through rigorous checks. Our analytical team employs high-performance liquid chromatography (HPLC), FTIR spectroscopy, and elemental analysis for every production lot. We keep comprehensive traceability on every shipment — from precursor selection down to packaging lot.
This discipline pays off in high-clarity transparent products such as water bottles and optical-grade sheets, where even trace impurities can create visual flaws, and in thin-wall films where migration must be nearly undetectable. We steer clear of recycled starting materials whenever purity and long-term performance are at stake.
Even low concentrations of heat-sensitive impurities or unreacted monomer can cause processing issues. In one instance, a customer using competitive absorbers reported minute surface pitting on PET sheets following extrusion — tracked back to micro-exothermic decomposition of unstable UV molecules. By supplying them with our own UV-326, made with in-house catalyst systems and filtered to a tighter specification, the defect incidence dropped below their detection threshold.
Stabilizers that once passed muster now undergo ever more scrutiny by regulators and NGOs, especially in sensitive applications such as food packaging, children’s toys, and medical device housings. We have invested in green chemistry initiatives and safer-by-design molecular structures, supplying models compliant with international regulations including REACH, FDA, and RoHS. Whenever possible, we eliminate heavy metal residues, minimize extractables and leachables, and document our full supply chain.
Customers focusing on circular economy or closed-loop manufacturing models ask for stabilizers that can survive multiple re-extrusions without breaking down or releasing hazardous byproducts. Our R&D team formulates and tests under repeated mechanical and thermal recycle conditions, and we maintain samples from every production shift to support inquiries, audits, or reformulation cycles.
Our partnership model includes more than just supplying a drum or a bag. Technical support for our UV absorber line covers application guidance, troubleshooting, and custom formulation. We assign development chemists to high-value projects for hands-on testing, blending, and process optimization at customer sites.
Some clients request support for cleanroom-grade production, where even micrograms of foreign material can disrupt performance in LCD panels or semiconductor protection films. We maintain segregated production zones, food-grade clean handling stations, and double-bagged packaging for these applications, with routine particle count checks and external audits.
Automotive tier suppliers, paint companies, construction material producers, and consumer goods manufacturers frequently contact us during new product development or regulatory shifts. On multiple occasions, we have collaborated to validate alternative UV absorber packages in the face of evolving VOC emission laws or unexpected in-use failures. This collaborative feedback influences ongoing adjustments in our synthesis and blending protocols.
Years of supplying ultraviolet absorbers has shown us how even small formulation tweaks can impact product durability, safety, and visual appeal. No one wants to see a once-clear car headlamp fog up before its time, or an outdoor sign fade into illegibility. Manufacturers come to us because we deliver consistency at industrial scale, not just lab-grade proof-of-concept.
Ongoing partnerships with both emerging startups and blue-chip brands have given us a unique view into the evolving requirements for UV protection. We routinely share case studies and white papers generated from actual installations, for everything from solar panel encapsulants to poolside deck chairs.
What sets us apart is our belief in combining synthetic control, application know-how, and open feedback channels. Customers aren’t just buying a commodity; they’re investing in finished product reputation, claims avoidance, and long-term brand performance.
Over the years, new environmental considerations, raw material costs, and market shifts have pushed us to continually evolve. We’ve responded by exploring alternatives to traditional benzotriazoles, opening new pilot lines for non-halogenated absorbers and supporting biobased polymer applications. Knowledge from in-field failure analyses feeds directly into new product iterations.
With each hardware, outdoor, packaging, or electronics customer, we learn more about the intricate and dynamic ways UV exposure interacts with product design. Our own experience has taught us that, while no single formula addresses every scenario, a flexible manufacturing strategy focused on critical details delivers strong, reproducible protection where it counts.
As more applications demand transparency, durability, and lighter product weights, the need for dependable UV absorbers grows. We continue to invest in continuous improvement through feedback-driven development, state-of-the-art equipment, and a commitment to transparency and accountability. We stand ready to collaborate with manufacturers seeking not just another additive, but a long-term technical partnership to keep their products looking and performing at their best under the toughest sunlight.
