Products Introduction
TINUVIN 328 is a solid benzotriazole UV absorber, which can provide good light protection for wood paint and plastic paint due to its wide absorption frequency range.
Physics Performance
melting point |
80~88℃ |
Flashpoint |
229℃ |
Density20℃ |
1.17g/cm3 |
Solubility@20℃ |
%w/w |
Acetone |
6 |
Benzene |
39 |
Chloroform |
44 |
Cyclohexylamine |
15 |
Acetaldehyde |
16 |
Hexane |
0.3 |
methanol |
0.4 |
Dichloromethane |
56 |
Water |
<0.01 |
Volatility at different temperatures: 183℃ 1.0% (by weight)
2.0% (by weight)
223 ℃ 5.0% (weight ratio)
Apply Scope
TINUVIN 328 can be dissolved in common solvents, TINUVIN 328 can produce synergistic effect with hindered amine light stabilizer TINUVIN 292/123, this synergistic effect can further inhibit or slow down the coating The occurrence of a series of phenomena such as light deformation, cracking, powdering, and discoloration.
Due to the volatility of TINUVIN 328, it is not recommended to be used when the curing temperature is higher than 100 degrees Celsius. Recommended for exterior, low temperature cure or air dry coatings.
Recommended Addition amount (Based on the solid content of the paint system)
Varnish, decoration paint 1.0-3.0% TINUVIN 328
Use alone or add 0.5-2.0% TINUVIN 123/292
1.0-3.0% in paint TINUVIN 328
0.5-2.0% TINUVIN 123/292
Security Guidance : TINUVIN 328NoneSpecial safety equipment required,Refer to normal industrial operation. Please refer to the safety data sheet for specific data.
Security Guidance : TINUVIN 328NoneSpecial safety equipment required,Refer to normal industrial operation. Please refer to the safety data sheet for specific data.