| Product name | UV Absorber 328 |
| Synonym | 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol |
| CAS NO. | 25973-55-1 |
| Appearance | White to slightly yellow powder |
| Purity | 99% |
| MF | C22H29N3O |
| MW | 351.49 |
| Related categories | Fine Chemicals |
| HS Code | 2917131000 |
| Tracy@coreychem.com |
Packaging: 25kg/bag
Product Features:
Typically used in combination with hindered amine light stabilizers to improve the coating’s resistance to gloss loss, chalking, bubbling, delamination, and discoloration. It is especially recommended for use in coating systems that cure at room temperature and low temperatures.
Uses; UV Absorber 328, as a UV absorber, is soluble in organic solvents such as benzene, toluene, styrene, cyclohexane, methyl methacrylate, ethyl acetate, and ketones. UV Absorber 328 is mainly suitable for polyolefin, polystyrene, polyvinyl chloride, polyurethane, and polyester products. It is an excellent benzotriazole-based UV absorber. The maximum absorption wavelength is 345nm. The typical dosage is approximately 0.1%.
Storage; Avoid sunlight, high light, and humidity. Avoid light stabilizers containing sulfur or halogens. Store in a sealed, dry, and light-protected environment.
