Aircraft windows leaked, damaging and discoloring leather.

>>> Leather is now dried, wrinkled and discolored.

When leather is dried, we mean that the fatliquor has leached out in this case. To rectify the dried issue, the original fatliquor (ionic charged fat and oil) need to be replenished to its original level of average 14% (read from a leather moisture meter or equivalent.)
Wrinkled suggest there is shrinkage when fatliquor leaches out of the water affected areas. To rectify the shrinkage, the leather will need to be hydrated to relaxed and stretched back to original dimension.
Discoloration or dyestuff migration is caused by the pH value of the water, the higher the pH value the greater the discoloration.

The sequence of process recommended for the above is by:
CleanPro-1.5 > Acidifier-2.0 > Hydrator-3.3 > Fatliquor-5.0 > Protector-B.

CleanPro-1.5 has 2 functions in this application, first to remove general surface soiling and second to pH neutralize or increase the ionic positive (+ve) leather protein fiber charges (the suffix number denotes its pH value, thus 1.5 is equivalent a pH value of 1.5).

Acidifier-2.0:
Have 2 functions acts as a surface rinse and a pH neutralizer.

Hydrator-3.3:
Works as a colloidal water movement within the leather structure to redistribute the leather constituents back to place and also purge contamination to resurface. This will need the leather structure to be fully saturated, evaporation controlled and dwell up to 72hrs to even out the discoloration.
From picture #1 the entire lower section of the seat has to be treated entirely and block off with a break of continuity otherwise a ring will continue to develop with no ends.

From picture #2 as stated above, as there is no breaking point the brown will runs into the white. May solve the evenness of the brown, but may not be able to control and bring back the original white (color refinishing is an option to have an even appearance).

From picture #3 & #4, the degree of difficulty increases, as it is a vertical panel to control liquid flow.

Fatliquor-5.0:
Is to replenish leach out fatliquor from dryness, stiffness and prevents cracking.

To restore appearance color refinishing is required.

>>> What products should I purchase to repair?

Kit-At5.ws is recommended to restore the leather structure integrity.
http://www.leatherdoctor.com/kit-at5...storation-kit/

Kit-A3.cl to restore the aniline brown trim
http://www.leatherdoctor.com/kit-a7-...finishing-kit/

Kit-Sa3.cl to restore the white combination
http://www.leatherdoctor.com/kit-sa7...finishing-kit/

Roger Koh
Leather Care System Formulator
Consultant / Practitioner / Instructor
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email: [email protected]