One more thing...

Anyone considering using this sensitizer should keep in mind that the prints need to be cleared with a specific clearing bath that Charles Berger has posted here.

One of the chemicals, potassium permanganate, is a powerful oxidizer. It is available from the Formulary and B&S, but larger quantities >30 grams are subject to Haz-Mat fees. But 30g will make 5L of stock solution (100L of working solution).

Just FYI...

--Greg