Topcoat treatment for black lambskin

[baglover]

Hi Roger,

This bag was previously repainted by a bag spa. I removed most of the paint using nail polish remover, so I think it might have been an acrylic-based paint. Spots that do not come off are shown as shiny spots in the photos. Rubbing the strap with the nail polish remover did not remove any colour, so I’m not sure if the strap had been repainted. Can you tell from the photos?

The “stripped” areas are dull and become rather dry.
Do I use the anilin topcoat treatment set? Kindly advise.

Thank you!

[baglover]

A closeup of the surface

[Roger Koh]

>>> Rubbing the strap with the nail polish remover did not remove any colour, so I’m not sure if the strap had been repainted. Can you tell from the photos?

From what I see, most likely it is.
Leather is pH sensitive, so any products used for stripping should have a low pH value to control the hydrogen bonding between the leather protein fiber and the dyestuff and fatliquor (fat and oil). Thus unwanted finishes stripper is removed with Leather Doctor Stripper-2.3 (with a pH value of 2.3). Leather Eraser-5 helps to have friction rubbings without damages to the grain surface for more effective unwanted leather finishes.


>>> The “stripped” areas are dull and become rather dry.

Dryness is the removal of fatliquor (fat and oil) from the leather, besides removal from solvent, it also evaporates as the leather ages, thus need to be replenished up to the original 14% to prevent dryness and dry rotting of the leather. Use Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system.


>>> Do I use the anilin topcoat treatment set? Kindly advise.

Yes, Use Leather Doctor Leather Aniline Topcoat Refinishing - Kit-A6.tc


https://www.leatherdoctor.com/leathe...ing-kit-a6-tc/


Roger Koh
Leather, Skin, Hair, Eye & Acne Care System Formulator
Consultant / Practitioner / Instructor / Coach
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email: [email protected]

[baglover]

Hi Roger,

How many medium bags can be used for each kit? I’ve applied the same wax to 2 other bags (as shown in the other thread). I suppose 1 stripper2.3 is sufficient since most of the paint of this bag has been removed.

Thanks again.

[Roger Koh]

>>> How many medium bags can be used for each kit?

Sorry, I can't commit myself to this question, there are too many variable factors.

[baglover]

Also, how do I apply the stripper2.3? Using cotton cloth or cotton bud? Don’t want to remove more of the leather surface than required.

[baglover]

For this kit, should I use the Aniline 21 or Aniline 76 topcoat? I notice that you usually recommend the “heavy” Aniline 76.

[baglover]

>>> Rubbing the strap with the nail polish remover did not remove any colour, so I’m not sure if the strap had been repainted. Can you tell from the photos?

From what I see, most likely it is.
Leather is pH sensitive, so any products used for stripping should have a low pH value to control the hydrogen bonding between the leather protein fiber and the dyestuff and fatliquor (fat and oil). Thus unwanted finishes stripper is removed with Leather Doctor Stripper-2.3 (with a pH value of 2.3). Leather Eraser-5 helps to have friction rubbings without damages to the grain surface for more effective unwanted leather finishes.


>>> The “stripped” areas are dull and become rather dry.

Dryness is the removal of fatliquor (fat and oil) from the leather, besides removal from solvent, it also evaporates as the leather ages, thus need to be replenished up to the original 14% to prevent dryness and dry rotting of the leather. Use Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system.


>>> Do I use the anilin topcoat treatment set? Kindly advise.

Yes, Use Leather Doctor Leather Aniline Topcoat Refinishing - Kit-A6.tc


https://www.leatherdoctor.com/leathe...ing-kit-a6-tc/


Roger Koh
Leather, Skin, Hair, Eye & Acne Care System Formulator
Consultant / Practitioner / Instructor / Coach
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email: [email protected]

I thought from your first reply that I should use stripper2.3... so I don’t need this at all?

[baglover]

A closeup of the surface

Hi Roger, the surface remains like this after using Stripper several times. How do I improve the surface texture? Does buffing using sandpaper for each topcoat help to improve this?