>>> We need to strip them down
Use Stripper-2.3 (leather-safe) for stripping unwanted finishes.
And a stripper brush (StrippingBrush-9
http://www.leatherdoctor.com/strippingbrush-9/
helps detailing the stitches more efficiently).
>>> and restore them. How should we do it?
1st - Determine original finishes by removing “flaking and peeling... restored by someone else.” If there are signs of fading, then it is most likely aniline dyed. And Aniline-76
http://www.leatherdoctor.com/aniline-76/
will restore back to original finishes. If there are no signs of fading, then probable it is semi-aniline using micro pigment like Micro-54.
http://www.leatherdoctor.com/micro-54/
>>> How should we do it?
The standard of refinishing with Leather Doctor system is as follows:
Step-1 - Preparation for Refinishing:
Remove accumulated soiling, grease and oil and unwanted finishes in this case with Stripper-2.3 and follows with rinsing either Acidifier-2.0 or Rinse-3.0. A through stripping with rinsing in most cases suffice. Otherwise all known stains are removed accordingly.
Step-2 - Leather Rejuvenating System:
The close-up pictures shows evident of dryness as cracks.
And will need Hydrator-3.3 to soak through the leather structure to lessen the cracks and plumps it as well.
When the leather structure is swollen up, Fatliquor-5.0 is repeated replenished until the fatliquor stays on the surface and absorbed no more.
Leave to natural dry and repeat one more cycle of Hydrator-3.3 > Fatliquor-5.0 till the leather absorb no more.
All surface fatliquor residues are then removed with Hydrator-3.3 to a squeaky feel.
Leave to slow overnight dry for extra softness.
Step-3 - Dry Preparation:
Eraser-4 and fine sanding is used accordingly to remove existing deteriorating finishes.
Step-4 - Repairs:
Any repairs follows accordingly.
Step-5 - Adhesion Promotion
Adhesor-73 is scrub with 3M white nylon pad to remove deteriorating finishes and wipe with a lint-free towel.
This primer preparation, applied by scrubbing, ensures no failure to the new finishing, you mentioned above . . . (flaking and peeling . . . restored by someone else).
Step-6 Color Finishing:
Aniline-76 (transparent) or Micro-54 (opaque) when both are mixed in equal ratio it becomes (translucent).
Step-7 Topcoating:
Aniline-76 matches AnilineTop-76 in gloss or satin luster.
Micro-54 matches MicroTop-54 in the satin luster as the common match.
Step-8 Protector:
Rub-resistant protector will reduce flaking and peeling as well from friction rubs.
9464
Roger Koh
Leather, Skin & Hair Care System Formulator
Consultant / Practitioner / Instructor / Coach
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email:
[email protected]