As a manufacturer's guide, we would like to introduce you to a highly effective light stabilizer, the 2-(2H-hydroxy-3-5-Di-tert-Amyllphenyl)benzotriazole, also known as BASF light stabilizer Tinuvin 328, BASF Tinuvin 328, UV Absorber UV-328, Light Stabilizer UV-328, or simply UV-328.

At Ningbo Inno Pharmchem Co., Ltd., we are proud to be a leading supplier and factory of UV-328, which is a type of ultraviolet absorber that protects polymers, coatings, and other materials from the harmful effects of UV radiation. UV-328 is a white to slightly yellowish crystalline powder with a molecular weight of 447.68 g/mol and a melting point of 80-83°C.

One of the key properties of UV-328 is its ability to absorb UV light in the range of 290-400 nm, which is the most damaging range for most polymers, including polyolefins, PVC, PS, ABS, and others. By absorbing UV radiation, UV-328 prevents the degradation of these materials, which can lead to discoloration, brittleness, cracking, and other defects. UV-328 can also improve the weatherability and durability of these materials, making them more resistant to outdoor exposure and environmental stress.

Another important property of UV-328 is its high solubility in organic solvents, such as benzene, toluene, xylene, and chloroform. This makes UV-328 easy to incorporate into various formulations and coatings, and allows for a wide range of concentrations and application methods. UV-328 can be added to polymers during their processing, or applied as a coating or a masterbatch. UV-328 is compatible with most polymers and additives, and does not affect their mechanical, physical, or chemical properties.

UV-328 is also highly stable and resistant to heat and light, which ensures its long-term effectiveness and reliability. UV-328 can withstand temperatures up to 250°C and exposure to high-intensity UV radiation without significant degradation or loss of its UV-absorbing properties. This makes UV-328 suitable for use in demanding applications, such as automotive, aerospace, and construction industries, where high-performance and durability are essential.

UV-328 has many applications in various industries and products, such as:

1. Plastics: UV-328 can be used in polyolefins, PVC, PS, ABS, PET, and other plastics to improve their UV resistance, color stability, and gloss retention. UV-328 is especially useful in outdoor applications, such as pipes, cables, films, and profiles.

2. Coatings: UV-328 can be added to solvent-based or water-based coatings to enhance their weatherability, gloss, and color retention. UV-328 is commonly used in automotive coatings, wood coatings, metal coatings, and architectural coatings.

3. Adhesives: UV-328 can be incorporated into reactive and non-reactive adhesives to prevent their degradation and discoloration due to UV exposure. UV-328 is often used in sealants, tapes, and labels.

4. Others: UV-328 can also be used in other applications, such as printing inks, fibers, and textiles, where UV resistance and color stability are important.

In summary, UV-328 is a highly effective and versatile light stabilizer that can protect polymers, coatings, and other materials from the harmful effects of UV radiation. As a leading manufacturer and supplier of UV-328, Ningbo Inno Pharmchem Co., Ltd. can provide you with high-quality UV-328 products at competitive prices, and with flexible packaging and delivery options. Contact us today to learn more about UV-328 and how it can benefit your products and applications.

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