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Hydroxyphenylbenzotriazole. Used as a UV absorber for ambient and low temperature cured systems, such as air drying alkyd based systems for automotive and industrial coatings and trade sale paints such as wood stains or do-it-yourself paints. Tinuvin® 328 by BASF is recommended for the stabilization of styrene homo- and copolymers, acrylic polymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral and elastomers.
Details
25973-55-1
2-(2H-benzotriazol-2-yl)-4,6-ditertphenylphenol
- very good light stability
- extended UV absorption
- efficient protection
articles
films
sheets
fibers during outdoor weathering
adhesives
automotive and industrial coatings
trade sale paints such as wood stains or do-it-yourself paints
Can be used in combination with a light stabilizer of the sterically hindered amine or aminoether class (HALS) to give superior protection against gloss reduction, cracking, blistering, delamination and color change.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Physical state | powder | ||
| Appearance | |||
| Physical Properties | |||
| Melting range | 80 - 88 | ºC | |
| Molecular weight | 351.5 | g/mol | |
| Specific Gravity | 1.17 | 20°C | |
| Thermal Properties | |||
| flash point | 229 | ºC | |
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