UV Absorber 328 (Benzotriazole, PVC / PU / Polyolefin)
CAS 25973-55-1
In StockMOQ
25 kg
Lead Time
7–14 days
Packaging
25 kg drums
Specifications
| Appearance | Light yellow powder |
| Chemical Type | Benzotriazole (2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol) |
| Melting Point | 102–106 °C |
| Absorption Range | 300–380 nm |
| Molecular Weight | 351.5 g/mol |
| Recommended Dosage | 0.2–0.5% |
| Compatible Substrates | PVC, PU, polyolefins, PS, polyesters |
FAQ
UV-328 is broadly compatible with PVC, rigid and flexible PU, PS, and polyolefins. It has been flagged under EU SVHC screening — verify current regulatory status for food-contact applications.
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