There are many factors affecting the weathering resistance of paint film in paint industry, among which sunlight radiation and oxygen in the atmosphere are the main factors affecting the aging of paint film. UV absorber can absorb the ultraviolet light in the sunlight or transform it into harmless heat energy. In order to eliminate the damage of sunlight to paint film. Especially in the field of automobile parts, building materials and so on, which put forward harsh requirements for the weathering resistance, oxidation resistance and heat resistance of materials, ultraviolet absorbent is even more essential.
The benzotriazole UV absorber which is a kind of 2-(2-hydroxyphenyl)-2H- benzotriazole compounds, mainly absorbs ultraviolet rays with wavelength between 300-385 nm, which not only has high absorption efficiency, but also has good stability. Because of its good compatibility with synthetic materials, low volatility, low toxicity and light color, benzotriazole uv absorber has a high market demand at home and abroad, especially in acid coatings. Its synergistic effect with HALS also improve the market prospect of benzotriazole uv absorber.
The Specifications of OMNISTAB UV384-2
OMNISTAB UV384-2 is a benzotriazole uv absorber designed for high performance coatings, which can meet the requirements of durability and high weathering resistance of automotive coatings, and help to meet the quality requirements of high-grade finishes. It can provide effective protection for wood lacquer and plastic paint against UV radiation damage. In addition, it has excellent heat resistance and environmental tolerance, so it is especially suitable for various coatings that need to withstand long-term baking and extreme external conditions. OMNISTAB UV384-2 is a kind of liquid product, so it is also suitable for water-based coatings and various common solvent coatings, and has low volatility, long-term resistance to mobility and extraction resistance.
It is worth mentioning that the combination of Omnistab UV384-2 and HALS (e.g. Omnistab LS292) can provide excellent synergies, so as to better protect the coating from glossiness reduction, cracking, blistering, lamination and discoloration problems.
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