Originally Posted by
Oren Grad
I've used Sistan, no longer do because I worry about the risk of problems that can become apparent only much later, when it's too late to do anything about it. In part that's because I don't like to squeegee my RC prints - I just hang them up directly from the wash.
Here are the instructions from the last version of the Agfa Sistan documentation. Of course for the Adostab you should use whatever dilution ratio is specified on the bottle:
Mixing instructions
For use 50 ml Sistan New is diluted with 950 ml water. The correctly processed and washed prints are agitated for one minute in Sistan New solution after the final wash. NB! Too high a Sistan New concentration can lead to stains which take some time to appear - particularly if prints are in close contact (stored stacked). Care should then be taken that the fronts and backs of prints are wiped before drying to avoid partial over-concentration caused by dried drops of Sistan New.
Pinch and transport rollers on mechanical processors and continuous dryers should be carefully wiped clean to stop the Sistan New solution crystallising on them.
Yield
Up to 2 m² black and white paper per litre ready solution (equivalent to approx. 45 sheets 17.8 × 24 cm). The solution can be used down to the last drop.
Storage life
The concentrate will keep virtually indefinitely in closed bottles. Ready solution should be kept in capped glass bottles, not left in open trays.
Bookmarks