Chicstab 329

Product Description

CAS NO.  3147-75-9

Chicstab 329 is a hydroxyphenylbenzotriazole UV absorber designed to absorb UV radiation within the 300-400nm range effectively. It demonstrates exceptional UV absorption and light stabilization properties, providing robust protection to plastics and diverse substrates.

This UV absorber can be utilized independently or in conjunction with other additives like light stabilizers and antioxidants. It significantly improves the weather resistance of molded products, film materials, sheets, and fiber products exposed to outdoor conditions, thereby maintaining their appearance and mechanical performance over time.

Physical properties 

Features/benefits

This product appears as a white or off-white powder, soluble in chloroform, dichloromethane, and various organic solvents. It exhibits slight solubility in methanol.

Application

This product is widely applied in PE, PVC, PP, PS, PC, polypropylene fibers, ABS resin, epoxy resin, resin fibers, and ethylene vinyl acetate, among other materials. Recommended dosage ranges from 0.1% to 0.5%. Specifically in polycarbonate (PC), unsaturated resin, and acrylic systems, it effectively inhibits polymer yellowing and aging. Typical end uses include moldings, extruded sheets, glass lighting, signage, marine, and automotive components.

Package

It is packaged in paper-plastic composite bags or cartons lined with plastic bags, each containing a net weight of 25 kg.

Shelf life

12 months from the date of production under unopened original packaging.

Storage and Transportation

It should be stored in dark, dry, and low temperature conditions. Tightly sealed, after opening, it is recommended to keep it airtight and use it up as soon as possible. Pay attention to prevent leakage during transportation, follow good industrial practice. Handle with care to avoid environmental pollution.