Quote Originally Posted by Mike Crawford View Post
The addition of Moersch Finisher Blue made it colder though exposure times were then increased. (Expect it is Benzotriazole.)
Indeed, Finisher Blue seems to be Benzotriazole plus a touch of 1-Phenyl-5-Mercaptotetrazole (PMT, PMTA), both cold-working organic antifoggants. MSDS: http://www.moersch-photochemie.de/fi...her%20Blue.pdf. As an aside, I wonder how the PMTA stays active without having to be replenished throughout a printing session.