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  • Roger Koh's Avatar
    04-30-13, 08:54
    Roger Koh replied to a thread Leather Seat Cracking in Car Detailing
    When leather is dried of its fat and oil and with constant compressing, stretching and flexing it will lead to cracks. Replenishing the...
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About Roger Koh

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Date of Birth
September 5
About Roger Koh
Location:
Vancouver
Interests:
Trouble shoot leather cleaning and restoration problems

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05-18-13 10:19
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Recent Entries

from. . . Leather Treatment - Am I taking color off?

by Roger Koh on 04-02-12 at 02:00
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Quote: Originally Posted by Roger Koh View Post
“The "Conolly Leather" optional-seating-surface stuff in my '93 Audi is also weird...seems for all the world like it's coated (and thickly too) yet it soaked up products and got nice and soft after nearly 20 years of neglect ”


What’s being soak up may be from those 20 years of “things” you have soak on; that is “conditioning over aged and deteriorated conditioners” refreshing them unknowingly; and may not necessary have reached through the accumulated micron layers

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rear seat headrest neglected. Leather coating stiff and dried out.

by Roger Koh on 03-10-12 at 11:30
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Quote: Originally Posted by Roger Koh View Post
Thanks again for addressing a subject which has gotten virtually zero serious attention as far as I've been able to find. And I've looked - from every detailing site to manufacturer's sites to the Smithsonian and other groups that seek to preserve historical artifacts.

If it isn't too much trouble, can you elaborate more on two subjects:

1) Wetter than Water hydrator
What is it? How to get it?

2) fatliquor replenishing
How it is done? Products?

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Updated 03-11-12 at 12:02 by Roger Koh

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Caring for leather in rarely driven vehicles

by Roger Koh on 03-03-12 at 01:02
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Quote: Originally Posted by Roger Koh View Post
Keeping the leather clean is referring to the leather finishes maintenance for aesthetic, appearance or look, basically this finishes is a soft and strong urethane coating over a pigmented coating; and assuming that this coating is also non-pervious as micro creasing may have not developed yet, fully molded without seams or stitching holes, and non-perforated. Yet if you take a surface reading of it pH value, it will still shows that it is acidic, below pH 7. The leather structure reading from the

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Aged, filthy Volvo interior! Pics in side as well as an assistance request.

by Roger Koh on 03-02-12 at 05:55
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Quote: Originally Posted by Roger Koh View Post
1] Seats feel like cardboard.

This cardboard stiffness is due to diminishing of original fatliquor (ionic charged fat, oil and water). Fatliquor diminishing through evaporation as VOC (volatile organic compound) and leaching through breaking of hydrogen bonding; where a non-leather-safe alkaline solution is used and by degreasing with solvent contents solution like alcohol. Caution is to check the products used; its pH value and its alcohol contents, as the usage of such products

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