Typical Properties

Molecular weight: 351

Melting range ℃: 80-88

Density at 20℃: 1.17

Product form: White-light yellow powder

Solubility at 20℃ ( g/100g solvent ):

Applications

UV Absorber 328 is a benzotriazole UV absorber with strong UV absorption, good solubility and compatibility with the system. 328 can effectively slow down the aging phenomena of coatings such as discoloration, gloss loss, and cracking. It is commonly used in wood coatings, general industrial coatings, and vehicle coatings. 328 is recommended for use in systems that cure at room temperature or low temperature.

Storage

UV Absorber 328 is stable in nature and has no special requirements; pay attention to moisture-proof and avoid high temperature.

Recommended Concentrations

0.1-0.5% (the specific amount to be added is subject to the actual application of the customer).