Chiguard® 477
High-Performance Red-Shifted Liquid UV Absorber
Specifically Designed for Industrial and Decorative Coatings
As the market for industrial coatings and decorative coatings increasingly demands improved weatherability, long-lasting performance, and aesthetic stability, UV absorbers have become essential functional additives.
Developed by Chitec Technology, Chiguard® 477 is a liquid UV absorber featuring a red-shifted tris-resorcinol-triazine chromophore, specifically designed to shield UVA radiation (320–390 nm).
This UVA range is the primary cause of coating discoloration, embrittlement, and substrate degradation, making UVA protection especially crucial for sensitive materials such as wood, plastics, and adhesives.
Its unique structure delivers excellent light and thermal stability, maintaining consistent UVA protection even under high-temperature baking and long-term UV exposure, ensuring coatings resist yellowing and degradation.
Chiguard® 477 is the ideal choice for achieving long-lasting protection and enhancing the durable quality of high-performance industrial and decorative coating systems.
Mini Encyclopedia: What is Red-Shifted?
In optics and molecular design, "red-shifted" means the absorption wavelength moves toward the longer wavelength (rightward) region.
This allows Chiguard® 477 to effectively cover the UVA range of 320–390 nm.
Three Core Advantages of Chiguard® 477
- ✅ Strong UV Protection to Extend Product Life
Chiguard® 477 provides broad-spectrum UVA shielding (320–390 nm) with high absorption efficiency, delivering excellent UV protection even in ultra-thin coatings.
It prevents yellowing, embrittlement, and performance loss, maintaining gloss and structural integrity over the long term. - ✅ Outstanding Stability and Compatibility for Extreme Conditions
Chiguard® 477 exhibits excellent photostability and thermal stability, preserving absorption performance and chemical structure even under high-temperature baking and prolonged UV exposure.
With good solubility and low reactivity, it is compatible with a wide range of resins and additives, ensuring formulation stability and application flexibility. - ✅ High-Efficiency Liquid Form for Easy Processing
Its liquid form simplifies mixing and incorporation processes, reducing the need for additional dissolving or agitation steps.
It is suitable for a variety of coating systems, from indoor to outdoor, and from decorative to industrial applications.
Versatile Applications: Complete Protection from Indoors to Outdoors
With excellent compatibility and stability under UV and heat exposure, Chiguard® 477 is ideal for transparent and pigmented coating systems, offering lasting protection across diverse materials and environments.
🔹 Wood Coatings and Protectants
• Outdoor wood coatings and penetrating wood protectants (suitable for Low-Oil Alkyd systems, both clear and pigmented) to enhance weatherability and appearance.
• Indoor solvent-based and UV-cured wood coatings, waxes, and wood care products to stabilize color and prevent sunlight-induced fading and degradation.
- 🔹 Plastics and Leather Applications
• Care and polish products for plastics and leather to reduce surface embrittlement and discoloration, extending product lifespan.
• Plastic coatings (e.g., PC, PMMA, PET films, sheets, bottles, and packaging materials) to maintain transparency and gloss while protecting against UV-induced deterioration. - 🔹 Specialty Coatings
• PVC coatings for signage boards, fabric linings, and canvas to enhance durability and color stability.
• UV-blocking varnishes for printing on metals, paper, cardboard, and laminates, preventing fading in premium packaging and decorative applications.
• Glass coatings and bonding layers to block UV penetration and protect glass structures and adhesive interfaces. - 🔹 Industrial and High-Performance Systems
• Industrial coatings for metals, plastics, and composites to provide long-term outdoor UV protection.
• Baking enamel systems for metal coatings and appliance finishes, maintaining UV absorption performance even after high-temperature curing. - 🔹 Adhesive Applications
• Effectively reduces UV-induced degradation in adhesive layers.
📩 Want to learn more?
Contact Chitec Technology's sales team: https://www.chitec.com/contact.htm
