Category: Tag:


Linsorb UV 328

Chemical Name:

2-(2′-Hydroxy-3′, 5′-di-tert-amylphenyl) benzotriazole

Formula C22H29N3O  
Molecular Weight 351.5
CAS#  25973-55-1


Physical Properties:
Appearance Yellowish powder or granule
Melting Point 79-87℃
Ash ≤0.1%
Loss On Drying ≤0.5%
Purity ≥99%(HPLC)
Transmittance 460nm≥96%

500 nm≥97%


UV 328 is a high-performance UV absorber that can effectively absorb 270-340 nm UV light.  Its performance is similar to that of UV-326 and UV-327 while better compatibility with the resin, low thermal evaporation and high washing resistance. Used as tinuvin 328 equivalent.

UV 328 is suitable for polyolefin (especially polyethylene), polyester, styrene polymer, polyamide, polymethyl methacrylate, polycarbonate, elastomer and other polymers.

Recommended dosage: PS 0.2-0.5%, PE 0.2-0.4%, PC 0.15-0.3%, PVC 0.2-0.5%, Polyester 0.3-0.5%.

Handing and safety:

>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.


20/25 kg cartons or drums.

Linsorb 328 TDS

Linsorb 328 TDS

Additional information

Weight 25 kg
Dimensions 650 × 450 × 150 mm