[alt-photo] ware cyanotype paper sensitivity

[Earl and Patty Johnson]

I am new to this list, but I recognize almost all of your names from 
other places. I hope that some of you can shed some light on my situation.

Today I coated some Mike Ware formula new cyanotype on Arches Aquarelle 
grain satine, and it turned bluish/green before it even dried. I know 
that this sensitizer is sensitive (pun intended) to paper chemistry, but 
I expected this paper to work. Does anyone have experience with this 
combination? Does the paper have an alkali buffer that can be 
neutralized with a soak in something like citric acid solution before 
coating? Or is my cyanotype solution bad and should be discarded? Or is 
this paper verboten for new cyanotype?

I like the Ware formula - I get six or seven more steps in the Stouffer 
wedge than I do with the traditional formula. However, it is frustrating 
to coat it on expensive paper and see it fog spontaneously.

Thanks for any comments.

Earl Johnson