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