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Thread: Dior white lambskin

  1. #1
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    Default Dior white lambskin

    moving from http://www.leathercleaningrestoratio...is-metal-stain

    Just to refresh your memory -> keep my bags really dry because of mold problem.

    This is the bag that was repaired by the boutique but it came back stiff after the recoloring - if I can regain the softness of the original lambskin, what do I need to strip and redo the finish aside from the white pigment? There is also a crack on the handle, which for which you recommended Impregnator-26 >Adhesor-73 earlier.

    4-...color refinishing does not affect the softness or suppleness of the bag... 2 pigment white system to choose from... Micro-54 does not breath only until micro crazing appears, while Napa-84 breaths as it form a “discontinuous” film. Does this mean that Napa 84 will feel softer in texture?
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  2. #2
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    >>> what do I need to strip

    Use Stripper-2.3 with a StrippingBrush-9 and LeatherEraser-4.


    >>> if I can regain the softness of the original lambskin,


    Rejuvenate with Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system to regain leather softness.


    >>> and redo the finish aside from the white pigment? Does this mean that Napa 84 will feel softer in texture?


    Napa-84 system with matching topcoat NapaTop-84S/G is a higher quality pigment, that allows the leather to breathe, feels finer, easier to coats or apply as well, then Micro-54 system.


    >>> There is also a crack on the handle, which for which you recommended Impregnator-26 >Adhesor-73 earlier.

    Impregnator-26 is to strengthen structural weakness and Adhesor-73 smooth out surface damages prior to color refinishing.

  3. #3
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    Hi Roger,

    I've just finished with refinishing the bag. While the main body of the bag does feel a little softer than the previous finishing, I've issues with the handles. I've done the Impregnator-26 >Adhesor-73 then follow up with the Napa-84 system and matching topcoat NapaTop-84S. It looks great until I carry the bag, i.e. stretch the handles, the cracks reappear and a lot more than before. I tried spray painting while stretching the handles to minimize the look of the cracks but they are still there. Is this an issue with the pigment because it is a “discontinuous” film?

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  4. #4
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    >>> Is this an issue with the pigment because it is a “discontinuous” film?

    The issue is the leather structure and nothing to do with any finishing coatings.

    Most likely it was not rejuvenated above the strength threshold.

    Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system restore the strength of the leather, when above 2000psi will eliminate any weakness.

    When leather already has existing cracks it will need to be repaired thereafter with:

    Impregnator-26 > Bond-3D > Patch-4S > Bond-7A accordingly.

    Let me know if you are interested to go that route to redo your repairs.

  5. #5
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    >>>Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system restore the strength of the leather, when above 2000psi will eliminate any weakness.

    How do I tell when the leather is above 2000psi?

    >>>Impregnator-26 > Bond-3D > Patch-4S > Bond-7A accordingly.

    Isn't a patch repair a little extreme for a crack? I could see how it'll be useful for a tear or rip but won't the patch be really obvious for a crack? Can you advise in greater detail?

    Hope you can get back to me soon, I've got stuff from your store pending in the cart and I really do need to fix the Chanel which has been left hanging...

  6. #6
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    >>> How do I tell when the leather is above 2000psi?

    The tensile-strength is realized only when put through a test in a leather chemist laboratory.
    The strength of the leather is originally controlled by the fatliquoring process.
    Thus, an industrial leather belt would need to have a higher value of strength then for bag manufacturing.


    >>> Isn't a patch repair a little extreme for a crack? I could see how it'll be useful for a tear or rip but won't the patch be really obvious for a crack? Can you advise in greater detail?

    Option-1 is to remove the finishing and return back to the leather rejuvenating process. And ensure that the leather strap is fully saturated with fatliquor (fat and oil) content over 15% measure with a leather moisture meter. Cracks is broken fibers and repairs by Impregnator-26 > Bond-3D > Bond-7A with donor fiber to fill up the cracks. (May give way to further cracks if the tensile-strength have not reach over specified original strength. As fat and oil evaporates leather weakens).

    Option-2 is to patch through half inch on both sides of the cracks. Skived one inch down with a Dremel tool to about 0.4mm to accommodate both Bond-3D and the patch to level. The edge is then sealed wil Bond-3D and smooth with Bond-7A. This method will ensure that the strength is restored. (To add strength to this one inch joint, Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 applies).


    >>> won't the patch be really obvious for a crack?

    A patch is too obvious and not recommended for non load bearing parts of the bag.
    Filling it up with Stucco-90 is the weakest among repair options only for aesthetic.


    >>> a “discontinuous” film?

    The leather breathes through these discontinuous film and add to the ease for periodic leather rejuvenating with Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system. The original strength of leathers is maintain by the fatliquor (fat and oil). Dry-rotting or lost of tensile strength or cracking or denaturing is directly related to the lost of fatliquor (fat and oil)

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    Roger Koh
    Leather, Skin & Hair Care System Formulator
    Consultant / Practitioner / Instructor / Coach
    web: www.leatherdoctor.com
    forum: www.leathercleaningrestorationforum.com
    email: [email protected]
    Last edited by Roger Koh; 06-21-2019 at 01:15 PM.

  7. #7
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    >>>Bond-7A with donor fiber to fill up the cracks

    How do I go about obtaining the donor fiber that you mentioned? Does it come from scraping Patch-4S?

  8. #8
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    >>> How do I go about obtaining the donor fiber that you mentioned?

    I have donate a piece enough for your repairs.


    >>> Does it come from scraping Patch-4S?

    No, What you need is a vegetable-tanned leather to match your original leather tanning type.
    Patch-4S is chrome-tanned with different characteristic.

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