UV Cationic Photoinitiator TTA UV-693
Chemical Name: Diphenyl[4-(phenylsulfanyl)phenyl]sulfonium hexafluoroantimonate in propylene carbonate
CAS NO: 71449-78-0
89452-37-9
TTA UV-693 is a cationic photoinitiator, which is a mixture of triarylsulphonium hexafluoroantimonate salts in propylene carbonate.
| Brand Name |
TTA UV-693 |
| Appearance |
Yellow Liquid |
| Active Content |
50% min |
| Gardner Color |
4 max |
| Water |
1.0% max |
| Ε¦ at λ 291 nm |
101 (Solvent: acetonitrile) |
| Ε¦ at λ 279 nm |
96 (Solvent: acetonitrile) |
1,Clear coatings and thicker films.
2,Used to cure cycloaliphatic epoxy resins such as TTA 21 and TTA26, vinyl ethers and other cationically cured materials.
3,A starting formulation would contain 1.5 - 3.0 % w/w of TTA UV-693 in a clear coating.
1,Faster cure than TTA UV-692 in inks and overprint varnishes.
2,More suitable for thicker coatings > 25μm
Stable for at least 2 years at 20°C in a sealed container in the dark.
(EUROPE AND USA) HAZARDOUS Class 9, Packing Group III, UN3082
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