Ferragamo Shoe – White Paint

>>> some white paint stain

Depending of the type of paint, water-based stains are easier to remove than oil-based stains.
Oil based stain solvent contents may have melt and fused the leather finishes and both may be removed altogether.
Water-based stains have a better chance of removal using Prep-7.7 for non-absorbent or Prep-4.4 for absorbent leather to soften it prior to gently prick using a bamboo skewers or equivalent spatula (sticky residue is then removed with Clean-3.8 > Rinse-3.0 system).
When the surface of the finish has a coating of Protector-B+ the stain comes off easily.
When the leather finishes has a tough topcoat like MicroTop-54 or AnilineTop-76 it is also easier to be removed without damages to the color coating.
Generally a non-absorbent leather finishes is stronger than an absorbent leather finishes thus less damages.

>>> a small portion of the original color was wore off due to wear and tear.

When color is still intact, it is normally the clear topcoat that need repair.
Since it is a gloss finish – AnilneTop-76G (gloss) will match well.
Rough surface is sand not removing any coloring and sand in between AnilineTop-76G between coating.
Pictures show that the secondary Navy-Blue is peeling off from the primary Black color coating.
Repairs may be done with the following sequences:

1 – Paint Remover:
With Prep-4.4 > Clean-3.8 > Rinse-3.0

2 – Preparation Cleaning:
With Prep-4.4 > Clean-3.8 > Rinse-3.0

3 – Dry Preparation:
With fine sanding to smooth damaged finishes.

4 – Sealer / Primer Coating:
With Adhesor-73 to ensure proper adhesion.

5 – Color Coating:
With Custom Matching Aniline-76 Navy-Blue (with Black for shading)

6 – Gloss Top Coating:
With AnilineTop-76G

7 – Non-stick, Rub-resistant Protection:
With Protector-B+

>>> will applying the Dye using the sponge or a airbrush is required to obtain the gloss finish?

Airbrushing is only used as the last step to feather out the topcoat (meanwhile a fine brush doing the touch-up is more practical in conjunction with fine sanding). The second phase is to dye the entire panel if it matches well, otherwise the entire shoe may have to be done all over.

Roger Koh
Leather Care Consultant / Practitioner / Instructor

Product information:

From this link:
http://www.leatherdoctor.com/kit-a7-...finishing-kit/
Attachment 5151
Leather Doctor® Kit-A7.cl, aniline leather dye refinishing kit is designed for dyestuff and topcoat refinishing from the simple sunlight fading to the severely sweat damages from body oil and grease. Most severely penetrated, prolonged and neglected stains show a darkening effect with a sticky feel have its topcoat and dyestuff probably deteriorated by the sweat. When the stain feels sticky, it is a sign of leather denaturing and reverting to rawhide from breaking of bonds with the tanning agent. When sign of color is transfer to a white towel, it indicates that the dyestuff has also break bonds with the protein fiber. When leather is stiff or shows signs of whitish residue migrating, it shows that the fatliquor is breaking bonds as well with the protein fiber. The main component of the leather protein fiber is amphoteric while the other constituents are not; shifting of the pH mainly caused from sweat to alkalinity affects the pH imbalance. To revert from denaturing into rawhide prior to topcoat refinishing, contaminated alkaline soiling is removed with Degreaser-2.2, a waterbased (pH 2.2) multifunctional degreaser that emulsifies greasy contamination besides controlling dye bleeding and charging the protein fiber ionic positive for strengthening the attraction between the ionic negative tanning agent, dyestuff and fatliquor. Deflocculated and suspended soiling is towel extracted, thereafter rinse and pH balanced with Acidifier-2.0 to prevent the leather from reverting to rawhide. When leather feels sticky or slimy it is a sign of leather denaturing, a squeaky feel when wet is a sign of a healthy leather. Hydrator-3.3 relaxes stiff leathers and removes surface tension free from surface blotchiness prior to fat and oil replenishing. Fat and oil is replenished with Fatliquor-5.0 to rejuvenate the leather for the desired suppleness when dry. Custom redyeing commences prior to topcoat refinishing. Protector-B+ imparts a non-stick rub-resistant protection with a buttery-feel that shield against sticky soiling and reduce friction noises. Note that the mentioned product suffix number denotes its pH value in this holistic leather-safe aniline leathers dyestuff and topcoat refinishing system.

Ferragamo Shoe – White Paint – Worn Finish