UV Cationic Photoinitiator TTA UV-694
Chemical Name: 4,4'-dimethyl-diphenyl iodonium hexafluorophosphate
CAS NO: 60565-88-0
TTA UV-694 is an iodonium cationic photoinitiator, intended for use in non-silicone applications such as the cationic UV curing of inks.
Depending on the application and substrate used the product can be used in conjunction with a sensitizer in order to speed up the rate of curing.
Brand Name |
TTA UV-694 |
Appearance |
White to off white powder |
Assay |
98% min |
Melting Range |
175 to 180ºC |
Volatiles |
1% w/w max |
Absorption λ max |
267nm |
1,Clear coatings and thin films.
2,Used to cure cycloaliphatic epoxy resins, vinyl ethers, glycidyl ethers, oxetane, epoxidised olefins and other cationically cured materials.
3,A starting formulation would contain 3.0 - 5.0 % w/w of TTA UV-694 in a clear coating.
1,Enables good adhesion to metal substrates
2,Antimony free initiator
3,No release of benzene during cure
4,Low yellowing
5,This initiator can be sensitised when used in conjunction with thioxanthones
Stable for at least 1 years at 20°C in a sealed container in the dark.
(EUROPE AND USA) HAZARDOUS Class 8, Packing Group III, UN1759