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Type: Posts; User: Roger Koh

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    >>> How do I go about obtaining the donor fiber...

    >>> 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...
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    >>> How do I tell when the leather is above...

    >>> 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...
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    >>> 1B: close: > 1C: closer: These close-up...

    >>> 1B: close: > 1C: closer:

    These close-up shows dryness of the leather, and need to proceed with Step-2 prior to the piping repairs in Step-4.

    Step-2 - Leather Rejuvenating System:
    The...
  4. >>> 1. Should I leave the leather as it is and...

    >>> 1. Should I leave the leather as it is and just protect and reinforce the vachetta or is it optimal to strip the leather of the previous products I have repeatedly applied (saddle soap +...
  5. >>> 3b: water stain that got lighter but spread...

    >>> 3b: water stain that got lighter but spread out quite a bit.

    pH Balancing:
    This lighter stains has to do with denaturing of the leather from alkaline over exposure.
    The remedy is to bring...
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    >>> We need to strip them down Use...

    >>> 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...
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    >>> Is this an issue with the pigment because it...

    >>> 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...
  8. Will do. Please post your progress for...

    Will do.

    Please post your progress for potential trouble shooting on time . . .
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    >>> how does its “faux leather” hold up "Faux...

    >>> how does its “faux leather” hold up

    "Faux Leather" or vinyl has not history of peeling.

    It is the "Laminated Leather" or "Bicast Leather" that peeling is the common issue.

    It is the...
  10. >>> What dye will we need? To replicate the...

    >>> What dye will we need?

    To replicate the original dyeing process, this is the recommendation:

    A1- Deep staining the suede structure, use Suede-17 (transparent dyestuff).

    A2- Dye fixing...
  11. Thread: Help !

    by Roger Koh
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    The leather finishes need to be positively...

    The leather finishes need to be positively identified, so that repairs returns back to original.

    This is aniline dye.

    And here a the varieties: Aniline Wax Pull-up, Aniline Waxed, Aniline...
  12. First, unless there is a label that says “machine...

    First, unless there is a label that says “machine washable” this sheepskin is probably alum-tanned.
    And the machine rinsing also removed the tanning agent, thus reverting to rawhide.
    ...
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    View Post

    >>> Iím in need of suggestions for restoring the surface of my sofa cushions.

    What appears on the surface is the result of dryness of the leather structure and it has to be restored from within...
  14. >>> HideBrush-4 Only good for surface cleaning...

    >>> HideBrush-4
    Only good for surface cleaning and grooming, to go deeper you will need a slicker brush.


    >>> Terry towel
    A white cotton terry towel is used to extract during degreasing,...
  15. >>> It has abrasions on the corners and...

    >>> It has abrasions on the corners and throughout, ink underneath the flap, poor structure to the bottom and discoloration throughout.

    Preparation cleaning is performed with Degreaser-2.2 >...
  16. >>> After it dried, it dried slightly darker, ...

    >>> After it dried, it dried slightly darker,

    The darkening effect due to high pH value above 7 will need to be clean and pH-balanced with VachettaPro-1.2 and Acidifier-2.0 (note the suffix number...
  17. >>> I'm not sure which type of leather this is....

    >>> I'm not sure which type of leather this is.
    This leather is identified as “Bicast”
    http://www.leatherdoctor.com/bicast/

    See what others have solves their Bicast leather issues here:...
  18. >>> The 'fill' bottles weights are as follows: ...

    >>> The 'fill' bottles weights are as follows:

    The concentrate ratio for all the bottles are correct except for Clean-3.8, and we will be sending you the correct concentrates.


    >>> Can you...
  19. >>> It does change color when i push into or...

    >>> It does change color when i push into or stretch the leather,

    This is the “pull-up” effect


    >>> More drastically on the "hidden areas" then the used and open areas on the couch.

    The...
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    >>> I want to extend their usable life, &...

    >>> I want to extend their usable life, & strength.

    Skin is converted into leather through the tanning process. It is the continuing fatliquoring process that deposit average 14% of fat and oil...
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    I would be happy to share my knowledge and answer...

    I would be happy to share my knowledge and answer your questions.

    Please post each item as a separate thread and have lots of good pictures for reference and questions in relation to the pictures....
  22. >>> 1) Can you confirm that the amounts in the...

    >>> 1) Can you confirm that the amounts in the spray bottles are correct?

    The black print on white shows the concentrate ratio thus they are different in amount by weight.


    >>> They are most...
  23. >>> i am trying to figure out what kind of...

    >>> i am trying to figure out what kind of leather it is.

    From appearance it is “sauvage” that is, it retains its raw scars and color intensity variation as it is.


    >>> I believe it is an...
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    >>> The worst part is the armrest, which I am...

    >>> The worst part is the armrest, which I am sure, is from my arm being either dirty or sweating on it.

    Leather has a pH value of 3 to 5, vegetable-tanned leather is one point lower then...
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    >>> Should I keep reapplying with a sponge...

    >>> Should I keep reapplying with a sponge several times before completely letting it dry?

    Vachetta-2.8 works by chemical reaction and it is the slow drying process that lighten the appearance,...
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