I might also add that bbl's were hung in a damp box at approximately 46% humidity then after 1 hr. re coated w/rusting agent. Have a water filled bowl at bottom of metal cabinet w/150W bulb 3/4" above water level. Sitting on this 30"W x 24" H X 12" D metal cabinet is a wood box w/a door where the bbl's are hung. There is a 3" hole at base of wood cabinet for the air to rise through. As for carding after each etch, 2 plastic troughs not quite long enough are used to submerse more than half the length of the tubes. Carding is done using the water from one trough now being dirtied w/the etchent residue then more carding is done in the second trough filled w/water until bbl's look somewhat clean. Then wiped with a paper towel until bbl's look clean. In closing, these bbl's are being browned only, no boiling to b&w. G.
Last edited by guns; 12/08/13 04:22 PM.
