1. Product Overview

UV absorber UV-P is a commonly used high-efficiency benzotriazole UV absorber. It effectively absorbs ultraviolet rays in the range of 270–380 nm with high absorption efficiency and almost no absorption of visible light. Featuring good thermal stability, low volatility and excellent resin compatibility, it can effectively suppress yellowing, aging, chalking, cracking and deterioration of mechanical properties of polymer materials caused by UV irradiation, and greatly extend the weathering service life of finished products. It is suitable for plastics, coatings, resins, adhesives and other systems. It is often compounded with hindered amine light stabilizers and antioxidants for favorable synergistic anti-aging effects, and is especially suitable for various transparent polymer products.

2. Basic Chemical Information

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3. Technical Specifications

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4. Physical Properties & Solubility

This product is high-purity crystalline powder with high melting point and good thermal stability. It has low volatility, no decomposition and low migration under normal processing temperatures. It features high visible light transmittance and will not affect the transparency and base color of finished products, ideal for modification of transparent articles. At room temperature, it is readily soluble in organic solvents such as  xylene, esters and, slightly soluble in water. It can be rapidly and uniformly dispersed in various resin and coating systems with excellent chemical stability.

5. Key Product Features

• High UV absorption efficiency: Fully covers effective UVA/UVB bands, inhibits polymer photodegradation from the source, and delivers remarkable anti-yellowing and anti-aging performance.
• Excellent light transmittance: Does not interfere with visible light; no discoloration or haze after addition, making it the preferred additive for transparent plastics and optical products.
• Good processing stability: High temperature resistance and low volatility; hardly causes precipitation, blooming or migration during conventional extrusion, injection molding and coating processes.
• Wide substrate compatibility: Highly compatible with mainstream materials including PVC, ABS, PC, PMMA, PP, epoxy resin and acrylic resin.
• Strong synergistic effect in blends: When combined with antioxidants and hindered amine light stabilizers, it can significantly prolong the outdoor weathering life of finished products.

6. Application Fields

Suitable for various transparent and colored rubber & plastic products, coatings and polymer materials. Widely used in transparent parts, optical products, home appliance housings, films and outdoor profiles made of PVC, ABS, PC, PMMA, polyester, epoxy resin and other materials. It is also applicable to wood coatings, industrial coatings, anti-corrosion coatings, textile coatings and adhesive systems to effectively solve outdoor UV aging, yellowing, cracking and loss of gloss of finished articles.

7. Recommended Dosage

For general products: 0.1%–0.4% by weight of the substrate. For products requiring long-term outdoor exposure, high transparency and superior weather resistance: 0.4%–0.6%. The dosage can be appropriately reduced when compounded with hindered amine light stabilizers and antioxidants. Adjustments can be made according to formulation and service environment.

8. Application Method

It can be added at each stage including mixing, feeding, coating preparation, extrusion and injection molding. Dry powder direct feeding or pre-dissolution in organic solvents / pre-dispersion in resins are both acceptable. The recommended processing temperature is ≤260 ℃. Uniform dispersion can be achieved by conventional stirring and kneading without special treatment.

9. Packaging, Storage & Shelf Life

Packaging: 25 kg per fiber drum lined with moisture-proof bag; custom packaging available. Storage: Keep hermetically sealed in cool, dry and ventilated place. Keep away from heat sources, oxidants, acids, alkalis and corrosive materials. Avoid direct sunlight and moisture. Shelf Life: 24 months for original sealed packages. Once opened, use up promptly and seal well for moisture protection.

10. Notes

The data in this data sheet is for product selection and process reference only. Users shall verify the compatibility through small-scale tests according to their own formulations, processes and application scenarios. The manufacturer reserves the right to optimize and update product parameters.