BASF Tinuvin 328 UV absorber
Product introduction
TINUVIN 328 is a solid benzotriazole UV absorber. Due to its wide absorption frequency range, it can provide good light protection for wood paint and plastic paint.
physical properties
|
melting point |
80~88℃ |
|
Flash point |
229℃ |
|
Density 20℃ |
1.17g/cm3 |
|
Solubility@20℃ |
％w/w |
|
acetone |
6 |
|
benzene |
39 |
|
Chloroform |
44 |
|
Cyclohexylamine |
15 |
|
Acetaldehyde |
16 |
|
Acetaldehyde |
0.3 |
|
methanol |
0.4 |
|
Dichloromethane |
56 |
|
water |
<0.01 |
Volatility at different temperatures:
183℃ 1.0% (weight ratio)
202℃ 2.0% (weight ratio)
223℃ 5.0% (weight ratio)
Scope of application
TINUVIN 328 can be dissolved in common solvents, TINUVIN 328 can produce a synergistic effect with hindered amine light stabilizer TINUVIN 292/123, and this synergistic effect can further inhibit or slow down a series of coating photodeformation, cracking, chalking, discoloration, etc. occurrence of the phenomenon.
Due to the volatility of TINUVIN 328, it is not recommended for curing temperatures above 100°C. Recommended for outdoor, low temperature curing or air drying coatings.
Recommended addition amount (based on the solids content of the coating system)
In varnish and decoration paint 1.0-3.0% TINUVIN 328
Use alone or add 0.5-2.0% TINUVIN 123/292
Color paint 1.0-3.0% TINUVIN 328
0.5-2.0% TINUVIN 123/292
Safety Instructions: TINUVIN 328 does not require special safety equipment, refer to ordinary industrial operations. Please refer to the safety data sheet for specific data.
