I thought I'd add to this thread since I've used both of these fixers (i.e.,
6600027 and
6600282) for processing C-41 film in a Jobo. I've compared identical negatives processed in the two fixers and the results are indistinguishable to the naked eye and in inverted scans. The main differences are fixing time (6:30 versus 2:00) and cost per unit volume of working solution (see details below). Here's a summary of the mixing and usage instructions:
6600027 (This is the "conventional" Flexicolor fixer)
Package size: one 5-liter jug of concentrate.
Mixing instructions to prepare replenisher (concentrate + water): 1+4 (e.g., 200 mL concentrate + 800 mL water = 1,000 mL replenisher; see Page 3 in
Kodak Pub. CIS-49).
Mixing instructions to prepare working solution (concentrate + water): 1.724+8.276 (e.g., 172.4 mL concentrate + 827.6 mL water = 1,000 mL working solution; see Page 5 in
Kodak Pub. CIS-49).
Total replenisher possible: 25 liters.
Total working solution possible: 29 liters.
Fixing time and temperature for rotary processing: 6:30 @ 24-38 degrees C (see Page 3-6 in
Kodak Pub. Z-131).
Approximate cost per liter of working solution (as of 2022; not inclusive of shipping): $0.40/liter.
6600282 (This is the RA, or "Rapid Access," version of the Flexicolor fixer)
Package size: one 5-liter jug of concentrate.
Mixing instructions to prepare replenisher (concentrate + water): 1+1 (e.g., 500 mL concentrate + 500 mL water = 1,000 mL replenisher; see Page 3 in
Kodak Pub. CIS-49).
Mixing instructions to prepare working solution (concentrate + water): same as above (i.e., the replenisher and working solution are the same thing; see Page 5 in
Kodak Pub. CIS-49).
Total replenisher possible: 10 liters.
Total working solution possible: 10 liters.
Fixing time and temperature for rotary processing: 2:00 @ 35-41 degrees C (see Page 3-6 in
Kodak Pub. Z-131).
Approximate cost per liter of working solution (as of 2022; not inclusive of shipping): $2.30/liter.
The shelf life of both concentrates is very good. I've had half a jug of the 6600027 concentrate sitting around for >2 years and half a jug of the 6600282 concentrate sitting around for about a year, and control strips processed in both still check out within aim values. I enjoy the faster processing time offered by the RA bleach and RA fixer (1:00 and 2:00, respectively), but the cost per liter of working solution is obviously higher. When my RA bleach and RA fixer are used up, I'll use up the conventional Flexicolor bleach and fixer I have sitting on the shelf before ordering more RA chemicals.
