UV Absorber UV-320

Product Overview

UV Absorber UV-320 represents a class of high-performance benzotriazole ultraviolet absorbers engineered for superior light stabilization in diverse polymer matrices. As a critical additive in the specialty chemicals sector, this compound functions by absorbing harmful UV radiation and dissipating it as harmless thermal energy, thereby preventing photo-oxidative degradation. Our manufacturing process ensures exceptional purity levels, making it a reliable choice for protecting the structural integrity and aesthetic appearance of plastic products exposed to harsh outdoor environments.

The chemical structure of UV-320 provides robust protection against wavelength ranges that typically cause yellowing, cracking, and loss of mechanical strength in organic materials. By integrating this stabilizer into your formulation, manufacturers can significantly extend the service life of finished goods, ensuring compliance with rigorous durability standards required in automotive, construction, and packaging industries.

Technical Specifications

Industrial Applications

This light stabilizer is versatile and compatible with a wide array of polymer systems. It is particularly effective in polyvinyl chloride (PVC), unsaturated polyester resins, and polyolefins. In the production of synthetic fibers and films, UV-320 maintains optical clarity and prevents embrittlement caused by prolonged sunlight exposure. Additionally, it is suitable for use in polyurethane systems, polyamides, and epoxy resin coatings where long-term weatherability is a key performance indicator.

For polyester applications, the recommended dosage typically ranges from 0.3% to 0.5%, ensuring optimal protection without affecting processing characteristics. In PVC formulations, a concentration of 0.25% to 0.5% is advised, while unsaturated polyester resins benefit from 0.2% to 0.5% inclusion rates. These guidelines serve as a baseline, and formulation engineers should adjust based on specific end-use requirements and thickness of the final product.

Key Advantages

• High efficiency in UV absorption across critical wavelengths.
• Extremely low volatility, ensuring stability during high-temperature processing.
• Excellent compatibility with organic pigments and polymer matrices.
• Preserves physical properties such as tensile strength and impact resistance.
• Maintains high transmittance in the visible light spectrum for clear applications.

Packaging and Storage

To maintain product quality, UV Absorber UV-320 is packaged in cardboard drums lined with plastic bags, with a standard net weight of 25kg per drum. Storage conditions require a sealed, dry, and dark environment away from direct sunlight and moisture. Proper handling ensures the material retains its specified purity and performance characteristics throughout its shelf life. We adhere to Hazard Class 9 regulations for safe transportation and logistics globally.