Chiguard® GA403

Innovative UV Shielding Agent Derived from Vanillin|Specially Designed for PET Food Packaging and Optical Protection

Chiguard® GA403 (GA403) is a novel UV shielding agent derived from vanillin. It shows high absorption in the UVA band, providing broad-spectrum UV protection in plastics such as PET, PC, and PA, while maintaining a very low initial color impact.

≤ 405 nm
Effective Cut-off Wavelength
 
1500 ppm
Recommended Dosage in 1 mm PET*
 
> 300 °C
Processable Temperature

*Adding 1500 ppm GA403 to a 1 mm PET film can effectively block UV below 400 nm (up to ~405 nm) with minimal impact on initial color.

Key Features

  1. Insoluble in Common Food Components

    • Passed PET food contact migration tests, with simulated solvents including:
      • 10% Ethanol
      • 3% Acetic Acid
      • Vegetable Oil
    • U.S. FCS notification application: (Progress per official announcement)
  2. High Compatibility with Plastics

    • Despite low solubility, it can form stable formulations with various plastics:
      • PET
      • PC
      • PA
      • PMMA
      • PE
  3. Excellent Heat Resistance

    • Suitable for processing conditions above > 300 °C (e.g., PET, PC, PA extrusion and injection molding).

Recommended Usage

Broad-Spectrum UV Protection Recommendation

Chiguard® 380W is recommended to be used in combination with GA403, creating a high-efficiency + broad-spectrum UV shielding system that balances transparency and long-term stability.

  • Maintain clear appearance
  • Enhanced UVA/UVB coverage

Applications

  • ✅ Beverage bottles, juice bottles
  • ✅ PET food packaging
  • ✅ Sunglass lenses
  • ✅ Optical safety goggles
  • ✅ Blue-light blocking screen protectors

Regulatory Status

  • TSCA Listed
  • EU REACH Registered
  • K-REACH Registered
  • LONO Registered
  • FDA FCN No. 2422
  • GB Under Review
  • EFSA Under Review

Contact Us

Need formulation advice or optical testing? Our technical team can provide one-on-one support.

  • Category
    UV Blockers
  • CAS No.
    Proprietary
  • Form
    Powder
  • Melting Point
    198˚C min.
  • Application
    PETPCPMMAPAPP
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