[alt-photo] tricolor gum problem

[jusdado]

Hi all.
After a series of prints with tricolor gum with very good results, now 
two things happen: 1. - To spread the emulsion gum, dichromate and 
magenta pigment on printing, which contains blue (cyanotype) and gum 
yellow pigment, a similar effect occurs when pour or scatter oily water 
on a surface, rather than uniformly cover, the emulsion tends to collect 
in some places and not to adhere to others. 2. - After exposure to UV 
light, the revealed, the emulsion tends to disappear, leaving the 
impression with a hideous green.
Data: equal paper and treatment, as cyanotype, like brushes, like UV 
unit and time of exposure and processing, as dichromate and 
concentration. Similarly gum prepared as above, but in this case drops 
put carbolic acid (preservative) and Scmincke watercolor pigment PR122 
same dilution 1:10,
What is happening?, Is there gum hardened by the action of carbolic acid?.
Thanks for answering and sorry for my english, translation by computer.