Highly effective broad-spectrum UV absorption, particularly strong in the critical 300–400 nm UVA/UVB range.
Excellent thermal and hydrolytic stability, enabling robust performance during high-temperature polymer processing.
Low volatility and minimal migration, ensuring long-term UV protection in demanding outdoor applications.
Good compatibility with a wide range of polymers including polyolefins, engineering plastics, and coatings.
Non-discoloring and chemically inert, preserving clarity and color fidelity in transparent and light-colored formulations.
Polypropylene (PP) and polyethylene (PE) automotive interior parts.
Exterior architectural profiles and window systems made from PVC and ASA.
High-performance industrial coatings for agricultural and construction equipment.
Optical-grade polycarbonate sheets and glazing materials.
Thin-gauge packaging films requiring extended UV resistance and clarity retention.
| Chemical Type | Hydroxyphenyl benzotriazole (HPBT) |
| Product Form | Free-flowing off-white to pale yellow crystalline powder |
| Appearance | Crystalline powder |
| Molecular Weight | Approx. 350 g/mol |
| Solubility | Soluble in common organic solvents (e.g., chloroform, THF, hot xylene); low solubility in water |
| Primary Applications | Polyolefins, engineering thermoplastics, coatings, adhesives |
| Key Features | Broad UV absorption, thermal stability, low volatility, non-staining |
| Benefits | Extended service life, reduced photodegradation, maintained mechanical properties |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China