Quote Originally Posted by Alan Johnson View Post
Relayer, what old time formula is that?
by example:

Sodium sulfite 20g
PAP 3.5g
Hydroquinone 2.5g
Sodium carbonate 27g
Potassium bromide 1g
Water 1L

Quote Originally Posted by Alan Johnson View Post
IMO P-aminophenol has 2 advantages over metol at high pH:
from my books PAP-Q developers produce less fog than M-Q at same pH

Other interesting combination maybe PAP-Glycin like FX-2