FORMULARY BW-65 LIQUID PAPER DEVELOPER is a phenidone-glycin-based paper developer that produces a full scale of rich blacks. This developer has a long shelf life, excellent tray life, high capacity, and does not contain metol. The prints obtained with this developer are very close to those of amidol prints, but without the staining problems. The amount of working solution you will get per kit depends upon the dilution used.
BW-65 is similar to F130 but is a liquid A and B stock solution formula with a very fast speed of development. At a 1:1:1: ratio, development in 15-30 seconds with full blacks is possible. At a 1:1:10 dilution you may obtain full black in 5-7 minutes.