There you go Hans. The Masters have spoken;-) What is your procedure?
>As for clearing the bichromate from paper, I use sodium bisulfite. However,
>my practice is to first dry the carbon/carbro image first and let
>it stay aside for a few days for the gelatin to harden before clearing.
>You risk ruining the image by clearing while still wet with either
>sodium bisulfite or potassium metabisulfite
This is why in a previous post I mentioned that they were not hardeners.
>(and is there another
>-sulfite I forget) because they soften the gelatin somewhat and it
it would have to be ammonium I guess.
>is already in a very softened state, especially with carbro.
>(I am of course talking about monochrome printing now.)
>
>Another thing I have observed is that you must renew sodium bisulfite
>on a regular basis. If old or exhausted sodium bisulfite is used
>to clear papers it will stain the paper blue. This has happened to me
That is new to me. Never heard tell of that. It must take quite sometime
before it gets to that point?
>with both Fabriano and Rives papers hardened with chrome alum, and
>I believe (though not positive) also with formalin.
Luis
>Sandy King
>Sanking@hubcap.clemson.edu