YIHOO LS4611 is a hindered amine light stabilizer (HALS) specifically designed for long-term UV aging resistance of polymers. With its innovative molecular structure design and excellent photooxidation resistance mechanism, it breaks through multiple limitations of traditional light stabilizers in protection efficiency, application scope and durability. It provides comprehensive and long-term stable anti-aging protection for various olefin polymers such as polyethylene, polypropylene and nylon, as well as engineering plastics, becoming the preferred core additive in high-end manufacturing to extend product service life and enhance product added value.
Core Advantages: Four Highlights, Comprehensively Surpassing Traditional Products
1. Ultra-Long Weathering Life, Performance Outperforming Traditional Models
As a high-performance representative among hindered amine light stabilizers, YIHOO LS4611 possesses strong free radical scavenging ability and photooxidation resistance activity, which can fundamentally inhibit the degradation of polymers under UV irradiation. Its protection effect is far superior to conventional hindered amine products and UV absorbers: after xenon arc aging test (simulating complex natural environments such as strong outdoor UV rays, high-low temperature cycles, rain and snow erosion), plastic products added with this product can still retain more than 50% of key physical properties such as tensile strength and elongation at break after 12,000 to 20,000 hours of exposure, easily reaching the UV resistance level of UV12-UV20+. Whether it is building materials exposed outdoors for a long time or products that need to withstand marine climate and high-altitude strong UV environment, they can maintain stable performance and appearance, greatly extending the actual service life.
2. High Efficiency and Energy Saving, Lower Dosage and Better Cost Performance
YIHOO LS4611 adopts a high-efficiency active molecular design, and the protection efficiency per unit mass is 2-3 times that of traditional light stabilizers. Under the premise of achieving the same UV protection level, its addition amount is only 30%-50% of conventional products (the recommended addition amount is usually between 0.1%-0.5%, which can be adjusted according to the substrate type and protection requirements). This advantage not only directly reduces the procurement cost of additives, but also reduces the side effects caused by excessive addition—it avoids fogging and blooming on the product surface caused by additive precipitation, does not affect the processing fluidity and mechanical balance of the substrate, and at the same time reduces the difficulty of batching and mixing in the production process, indirectly improving production efficiency, realizing the dual value of “low dosage and high efficiency, cost reduction and efficiency improvement”.
3. Wide Adaptability, Not Limited by Product Form and Substrate
Different from traditional UV absorbers (which rely on surface absorption of UV rays, and the protection effect is significantly affected by product thickness) and nickel-chromium complex quenchers (with limited applicable substrates and prone to color contamination), the protection mechanism of YIHOO LS4611 does not depend on surface action, and its efficacy is completely independent of product thickness, enabling uniform and comprehensive protection from ultra-thin films to extra-thick plates.
- In terms of substrate compatibility, it has excellent compatibility with various olefin polymers and engineering plastics such as polyethylene (HDPE, LDPE, LLDPE), polypropylene (homopolymer PP, copolymer PP), nylon (PA6, PA66, PA12), and can also be perfectly adapted to modified materials such as PE/PP blends, glass fiber reinforced polypropylene and mineral-filled polyethylene. It has excellent dispersibility, is not easy to agglomerate and precipitate during processing, and does not affect the coloring effect and surface finish of products.
- The adaptability to product forms covers all scenarios: whether it is ultra-thin films and flat yarns with micron-level thickness, large injection molded parts and pipes with wall thickness up to tens of millimeters, or extruded profiles and hollow products with complex structures, it can exert stable protection effect, completely solving the industry pain points of traditional light stabilizers such as “insufficient protection for thick parts, wasted efficacy for thin parts, and uneven protection for special-shaped parts”.
4. Multi-Dimensional Protection, Considering Heat Resistance, Extraction Resistance and Long-Term Stability
YIHOO LS4611 is not a single-function UV-resistant additive, but has multi-dimensional protection capabilities of “UV resistance + thermal oxidation resistance + extraction resistance”:
- It has outstanding long-term thermal stability, with a thermal decomposition temperature (T-10%) as high as 343℃, which can withstand the high temperature during polymer processing (such as polypropylene injection molding temperature of 200-240℃, nylon extrusion temperature of 230-260℃), without decomposition or volatilization, ensuring stability during processing and consistency of protection effect; when used in combination with phenolic antioxidants (such as 1010, 1076) and phosphite auxiliary antioxidants (such as 168), it can produce a synergistic effect, further improving the heat resistance of products, and effectively resisting thermal oxidative degradation during processing and thermal aging during long-term use.
- It has excellent extraction resistance. During the use of products, even when in contact with water, acid-base solutions, oils, detergents and other media (such as outdoor rain erosion, food packaging in contact with water-based or oil-based contents, pipes transporting liquid media), it can maintain a stable chemical structure, not easy to be extracted and lost, ensuring that the protection effect does not decay for a long time, and avoiding the rapid aging of products in the later stage caused by additive loss.
Key Technical Parameters
Indicator Details
Thermogravimetric temperature (T-10%) 343℃ (Excellent high-temperature resistance, suitable for various high-temperature processing techniques of polymers, such as extrusion, injection molding, blown film, etc.)
Melting point 75-90℃ (Strong processing compatibility, it can quickly melt and evenly disperse at the melting temperature of the base material without affecting the processing rheology)
Product form Tablets (uniform particles, convenient for precise measurement and addition, can be directly mixed with resin particles, and are not prone to moisture absorption or caking during storage and transportation)
Appearance White to light yellow tablets (without obvious color stains, not affecting the original color and coloring effect of the product)
Compatibility It has good compatibility with olefin polymers such as PE, PP and PA, as well as modified materials
Typical Application Scenarios: Covering the Whole Industry, Precisely Meeting Anti-Aging Needs
The high adaptability and multi-dimensional protection capabilities of YIHOO LS4611 make it widely used in various polymer products with high requirements for weather resistance and stability, covering construction, automotive, agriculture, packaging, electronic and electrical appliances, engineering machinery, textiles, municipal engineering and other fields:
1. Polyethylene (PE) Products: “Durability Guarantee” for Outdoor Scenarios
- Film products: Agricultural films (greenhouse films, mulch films, sunshade nets) — resist strong UV rays and day-night temperature differences in the field, extend the service cycle to 2-3 years (traditional products are only about 1 year), reduce replacement frequency and lower farmers’ costs; at the same time, maintain the light transmittance and flexibility of the film, without affecting crop photosynthesis and field operations; Food packaging films (high-temperature sterilization films, frozen food packaging films, outdoor storage packaging films) — prevent food oxidation and deterioration caused by UV rays, keep the packaging appearance clean and extend food shelf life; Industrial packaging films (pallet stretch films, container packaging films) — withstand outdoor exposure and marine climate erosion during transportation, avoid film embrittlement and damage, and ensure the cargo protection effect.
- Pipe products: Municipal water supply and drainage pipes, gas pipes, communication optical cable protection pipes — buried or exposed outdoors for a long time, resist moisture, microorganisms and UV erosion in the soil, prevent pipe aging, embrittlement and leakage, and extend the service life to more than 50 years; Agricultural irrigation pipes, drip irrigation belts — withstand strong UV rays and water-fertilizer erosion in the field, keep the inner wall of the pipe smooth and water flow unobstructed, and avoid aging and clogging.
- Injection molding/extrusion parts: Outdoor furniture (leisure chairs, dining tables, children’s amusement facilities) — maintain stable appearance color, no fading or cracking; Trash cans, outdoor storage boxes — withstand sun and rain, prevent embrittlement and deformation; Automotive bumper liners, door inner panels — improve heat resistance and anti-aging properties, ensure structural stability during long-term use.
2. Polypropylene (PP) Products: “Anti-Aging Core” for Automobiles and Home Appliances
- Automotive exterior parts: Bumpers, grilles, rearview mirror housings, door handles, luggage racks — resist outdoor strong UV rays, high-temperature exposure and rain erosion, prevent surface yellowing, loss of luster and cracking, maintain appearance texture and extend the service life of the whole vehicle; Automotive interior parts (instrument panel frames, door trim strips) — withstand high-temperature environment in the car, do not release harmful substances, and maintain dimensional stability.
- Home appliance housings: Air conditioner outdoor unit housings, washing machine housings, refrigerator door panels, outdoor advertising machine housings — exposed outdoors or on balconies for a long time, resist UV rays and humid climate, prevent housing fading and embrittlement, keep product appearance novel and enhance brand reputation.
- Non-woven fabrics and textile materials: Geotextiles (road maintenance, water conservancy projects, landfill anti-seepage) — withstand outdoor strong UV rays, rain soaking and soil corrosion, maintain tensile strength and tear strength, and ensure project durability; Outdoor tent fabrics, awning fabrics, camping equipment fabrics — UV resistant and hydrolysis resistant, maintain the waterproofness and flexibility of the fabric; Agricultural covering non-woven fabrics (weed control fabrics, seedling raising fabrics) — extend the outdoor service cycle, not easy to be damaged after repeated use.
- Injection molding/extrusion parts: Engineering machinery accessories (excavator armrests, agricultural machinery housings), medical device housings (detection equipment used outdoors), daily necessities (water buckets, basins, outdoor tool handles) — improve weather resistance and durability, adapt to complex use environments.
3. Nylon (PA) Products: “Stability Guardian” for Engineering Plastics
- Engineering plastic parts: Automotive engine peripheral accessories (sensor housings, wire harness fixing parts), electronic and electrical connectors, gears, bearings, valves — withstand high temperature, vibration and outdoor environment, prevent nylon from aging and embrittlement after absorbing water, and maintain mechanical strength and wear resistance.
- Fibers and textiles: Outdoor clothing fabrics (jackets, mountaineering pants, sun protection clothing) — endow the fabric with long-term UV resistance (UPF 50+), prevent fabric fading and aging, and at the same time do not affect the air permeability and hand feel of the fabric; Fishing nets, ropes (marine fishing, outdoor operations) — withstand seawater erosion and strong UV rays, prevent fiber breakage and aging, and improve service life.
- Films and pipes: Nylon films (food vacuum packaging films, high-temperature retort films) — prevent film aging and yellowing caused by UV rays, maintain barrier properties and toughness; Nylon pipes (high-pressure oil pipes, pneumatic pipes) — adapt to outdoor or industrial environments, prevent aging and cracking, and ensure transportation safety.
4. Other Olefin Polymers and Modified Materials
- Polyethylene/polypropylene blends (PE/PP alloys): Outdoor fitness equipment, leisure products — combine the advantages of both, and obtain excellent anti-aging performance at the same time;
- Glass fiber reinforced polypropylene (GFPP), mineral-filled polyethylene (MPE): Automotive chassis parts, building formwork, outdoor railings — solve the problem of reduced anti-aging performance of modified materials due to the addition of fillers, and maintain structural stability and durability;
- Thermoplastic elastomers (TPE/TPR): Automotive seals, outdoor non-slip mats, sports equipment accessories — improve weather resistance and anti-yellowing ability, maintain elasticity and hand feel.
Reasons for Choice: More Than Anti-Aging, It’s the Core Support for Value Upgrading
With its four core competencies of “long-term protection, high efficiency and energy saving, wide adaptability, and multi-dimensional stability”, YIHOO LS4611 has become a benchmark product for polymer anti-aging solutions. Choosing it is not only adding a “sunscreen shield” to products, but also a comprehensive upgrade of product quality, cost control and market competitiveness:
- For manufacturers, it can reduce additive costs and production losses, improve processing stability, and reduce after-sales complaints and rework costs caused by product aging;
- For end customers, it can extend the service life of products, maintain stable product appearance and performance, and reduce replacement and maintenance costs;
- For the industry, it conforms to the development trend of “green manufacturing, long-term durability”, and reduces resource waste and environmental pollution caused by rapid product aging.
Whether it is high-end outdoor products pursuing extreme weather resistance or general-purpose products hoping to balance cost and performance, YIHOO LS4611 can accurately match the needs, empower polymer products, and help enterprises create more competitive high-quality and high-value-added products to stand out in the market competition.
Post time: Dec-10-2025