Wholesale UA328 Light Stabilizer CAS 25973-55-1 Ultraviolet Absorbent for Plastic

• Customization: Available
• CAS No.: 25973-55-1
• Color: Yellow
• Model NO.: Siwin-UA328
• Appearance: Powder
• Ash %: 0.1max
• Volatiles %: 0.5max
• Molecular weight: 351.5g/mol
• Transport Package: 25kg Carton Inner with Plastic Bag or as Customer`
• Specification: N/A
• Trademark: Siwin
• Origin: China
• HS Code: 29339982
• Production Capacity: 100000

Product Description

DescriptionUV Absorber 328 is a highly effective absorber of ultraviolet radiation in the 290-400nm range. It offers
excellent chemical stability, a light color, low volatility, and superb compatibility with polyolefins and other
resins, ensuring long-lasting storage stability.
ApplicationThis product is primarily utilized in polyolefins, styrene monomers and copolymers, ABS, acrylic
polymers, unsaturated polyesters, thermoplastic polyurethanes, polyacetals, PVB (polyvinyl
butyral), epoxy, and dual-component polyurethane systems. It can be optimally combined with
antioxidants and HALS to enhance the outdoor durability of end products.
Typical properties

Chemical Name	2-(2-Hydroxy-3,5-di-tert-pentylphenyl)-2H-benzotriazole
Molecular weight	351.5g/mol
Melting point	79-88ºC
Volatiles %	0.5max
Ash %	0.1max

 

Package/StoragePackage: Available in 25kg cartons with an inner plastic bag or customized packaging as per customer requirements.
Storage: Maintain the container tightly sealed in a dry, well-ventilated area.
The use of appropriate protective equipment is advised. Avoid excessive exposure to the product.
Wash thoroughly after handling.
Complete safety information is detailed in the Safety Data Sheet.