-coating PE (resin coated) silver print with cyano. solution doesn't work,
the solution doesn't "go in" the paper, after exposure it all washes off,
only leaving a very faint image
-the cyano solution bleaches the exposed (black parts) heavy, after
exposing for the cyano image, the bleached silver image "shimmers" through
the highlight parts of the cyanotype with a sepia like color, in it self
an interesting effect.
-coating baryt (fiber base) silver print works nicely (ofcourse also
bleaching the already exposed parts, not the white parts). Have to
practise in apllying the solution with a brush though (..no problem,
plenty of discarded fibre base prints lying around ;-) ). The Iford
multigrade Gallery Fb I used gave quite nice blue color.
Hope its of some interest & groet,
Cor Breukel
http://ruly70.medfac.leidenuniv.nl/~cor/cor.html
"The Infrared Gallery"
http://ruly70.medfac.leidenuniv.nl/~cor/ir-gallery.html