High photostability under prolonged UV exposure, ensuring long-term protection in demanding outdoor applications.
Excellent compatibility with a broad range of polymers including polyolefins, styrenics, and engineering thermoplastics.
Low volatility and minimal migration, supporting retention of UV protection during high-temperature processing and service life.
Non-discoloring performance—maintains clarity and color fidelity in transparent and pigmented systems.
Halogen-free and REACH-compliant, meeting stringent regulatory requirements for sustainable material formulations.
Automotive interior and exterior plastic components (e.g., dashboards, bumpers, trim).
Outdoor building materials such as PVC profiles, window frames, and cladding panels.
Packaging films and containers requiring UV stability for extended shelf life and aesthetics.
Geotextiles and agricultural films exposed to intense solar radiation.
Consumer electronics housings and appliance casings subject to indoor and ambient light aging.
| Chemical Type | Benzotriazole-based UV absorber |
| Product Form | Free-flowing white to off-white crystalline powder |
| Appearance | White crystalline powder |
| Primary Applications | Polyolefins, PVC, ABS, PS, PC, and thermoplastic elastomers |
| Key Features | UV-A/UV-B absorption (290–400 nm), low volatility, thermal stability up to 250 °C |
| Benefits | Extended polymer service life, reduced surface cracking and chalking, improved color retention |
| Regulatory Status | REACH registered; compliant with EU Directive 2002/61/EC |
| Storage Conditions | Store in cool, dry place below 30 °C in original sealed packaging |
Q1: What is the primary function of SONGWON SONGSORB 3270 in polymer systems?
A: SONGSORB 3270 is a benzotriazole-based ultraviolet (UV) absorber designed to protect organic materials—especially polymers—from photodegradation caused by UV radiation. It functions by absorbing harmful UV energy in the 290–400 nm range and dissipating it as low-level heat, thereby preserving color stability, mechanical integrity, and surface appearance during outdoor exposure.
Q2: In which polymer types is SONGSORB 3270 most commonly used?
A: SONGSORB 3270 demonstrates good compatibility and performance in a wide range of thermoplastics and thermosets, including polyolefins (e.g., PP, HDPE), engineering plastics (e.g., ABS, PC blends), coatings, adhesives, and elastomers. Its thermal stability and low volatility make it particularly suitable for high-temperature processing such as extrusion and injection molding.
Q3: How does SONGSORB 3270 compare to hydroxyphenyl triazine UV absorbers in terms of performance profile?
A: As a benzotriazole derivative, SONGSORB 3270 offers strong UV absorption in the critical UVA/UVB region, excellent lightfastness, and good compatibility with many resin systems. Compared to hydroxyphenyl triazines, it typically provides higher molar extinction coefficients at shorter UV wavelengths and may offer better cost-performance balance in certain applications—but generally delivers complementary rather than identical protection profiles, making synergistic use with other stabilizers common.
Q4: Is SONGSORB 3270 suitable for applications requiring regulatory compliance for indirect food contact or consumer goods?
A: SONGSORB 3270 is intended for industrial and technical applications where UV stabilization is required. While it meets general quality and purity standards for polymer additives, users must verify suitability for specific regulatory frameworks—including food contact, toy safety, or eco-label requirements—based on final formulation, end-use conditions, and applicable regional regulations. Regulatory status should always be confirmed with current documentation from SONGWON or authorized representatives.
Q5: What is the typical dosage range for effective UV protection with SONGSORB 3270?
A: Effective dosage depends on polymer type, thickness, expected UV exposure intensity, and presence of other stabilizers. SONGSORB 3270 is typically used at low concentrations, generally ranging from 0.1% to 2% by weight of the base polymer, with optimal loading determined through application-specific testing and weathering evaluation.
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