I've just poured 2 rather imperfect 8x10 tissues made with different concentrations of diazo and should print with them in about 24 hours. I have stopped putting alcohol in my glop since I started coating with a rod and magnet wall, but had to do the 2 small ones with a comb in near darkness (not taking any chances), bubbles! Thats ok, they are destined for step wedges.
I dont see any reason why one could'nt brush sensitise dry tissue. May give that a try sometime too, though it comes with a time cost.
The 3rd chem on the list above looks good and it seems to be available from China at $28/kg (100kg minimum!) Also known as Diazo S or 4477-28-5 the difference of which is 4444, a good sign.
Last edited by mdm; 07-12-2011 at 03:08 AM. Click to view previous post history.