Originally Posted by
Roger Koh
There are a few phases of restorative work you need done.
First is to pH neutralize the Baking Soda which in diluted form has a pH value starts from 8.8, it depends on the concentration you have used.
So, to combine the unknown stain that you wish to removed with “reverse-transfer” technique, the recommended process is as follows:
Degreaser-2.2 > Acidifier-2.0 + Prep-4.4 > Clean-3.8 > Rinse-3.0 + Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3. This combination system is the wet process. And its purpose is to remove stains, pH neutralized, ionic positive (+ve) charged the leather protein fiber to hydrogen bond with the ionic negative (-ve) fatliquor. Here we are dealing with leather integrity as the priority before dealing with appearance.
Let me know if you have questions about the above recommendation.