I just took a palladium workshop with Clay Harmon (will make another post about that this evening) which has me hooked.
I'm thinking that even if this stuff wouldn't work for palladium it would do just fine for cyanotypes so I may just go ahead and order it later this week. I am hoping to build my UV box in the next 2 weeks or so.
Photo Warehouse also sells a couple of other neat items such as window clings (make your own car window stickers!) and tshirt transfers (I wear these on special occasions like b-days as a gag) so that I can fill out my order with items I know I can use.