Chiguard® 460：High-Performance UVA Protection for Transparent Coatings

Tailored UV Absorber Solution for High-Transparency Coatings and Film Systems

In high-transparency and high-stability coating formulations, UV damage is often the critical factor that limits product lifespan. Chitec Technology introduces Chiguard® 460, a high-performance Hydroxyphenyl Triazine (HPT) UV absorber specifically engineered for superior UVA absorption with a maximum absorption wavelength at 348 nm. It delivers exceptional extinction efficiency and outstanding weathering resistance.
Whether used in ultra-thin film coatings or applications requiring maximum transparency, Chiguard® 460 provides strong UV protection, effectively extending product life and preserving color brilliance.

As a Hydroxyphenyl Triazine (HPT) UV absorber, Chiguard® 460 offers excellent light and thermal stability, making it ideal for high-temperature processes and harsh outdoor environments. Its chemically inert structure enhances resistance to acid rain, salt spray, and other environmental attacks. When combined with suitable resin systems and HALS (Hindered Amine Light Stabilizers), it contributes to outstanding weathering durability and acid resistance across the entire coating system.

Key Benefits of Chiguard® 460

• ✅ Targeted UVA Absorption | Long-Lasting Protection for Light-Sensitive Materials
• With peak absorption at 348 nm, Chiguard® 460 effectively blocks the UV-A range (320–380 nm), which is responsible for material discoloration and degradation. It is highly suitable for digital printing, clear coatings, and colored pigment systems, significantly extending outdoor service life.
• ✅High Molar Extinction Coefficient (ε) | Optimal for Ultra-Thin Films and Low-Loading Formulations
• Thanks to its high molar extinction coefficient, Chiguard® 460 delivers superior UV shielding even at minimal loading levels, preserving coating transparency and gloss. It is an ideal choice for applications requiring thin coatings or extreme optical clarity.
• ✅ Excellent Anti-Yellowing Stability｜Outstanding Thermal and Weathering Performance
• Proven through rigorous testing, Chiguard® 460 exhibits excellent thermal and photo-stability, enduring high-temperature baking processes and prolonged outdoor exposure without decomposition, discoloration, or yellowing—perfect for demanding environments.
• ✅ Low Color Impact Design | Ideal for High-Transparency Systems
• With a naturally light-yellow hue, Chiguard® 460 has minimal impact on the final product color, making it especially suitable for light-colored, colorless, or high-clarity coating systems, such as plastic packaging, clear varnishes, and protective layers for light-sensitive materials.

Ideal Application Scenarios

• 🎨 Industrial Coatings
  🪵 Wood Coatings
  🔥 High-Temperature Baking Paint Systems
  🖨️ Digital Printing / Photosensitive Material Protection
  📦 Packaging and Organic Photovoltaic (OPV) Applications