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Questions!
04-05-2012, 09:49 AM
What do you have available for cleaning leather steering wheel?

It's a Mazda 3 steering wheel.
Part perforated leather, part solid leather.
The leather is soiled and sticky, 7 year old.
It has been cleaned about 3 years ago by some cheap leather cleaner.


#1
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling1.jpg

#2
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling2.jpg

#3
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling3.jpg

#4
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling4.jpg

#5
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling5.jpg

#6
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/MazdaSteeringSoiling6.jpg

Roger Koh
04-05-2012, 11:39 AM
What you have at hand is this Kit AP5.r (AP3.tr). . .




http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Doctor%20products/KitAP5r.jpg
Leather Doctor® Auto Pigmented Leather – Topcoat Refinisher - Standard - Kit AP5.r




Pictures #4 & #5:
These pictures show the whitish soiling accumulation, and I hope it is the soiling that is sticky; which should not be a problem, as both the stickiness and the soiling should all be gone.
If the stickiness remains after the soiling is gone, then the finishes has been weaken by the contamination; and to rectify it would need the help of Acidifier-2.0 to return to a healthy squeaky feel.

Picture #6:
Again this picture is covered with the unwanted whitish soiling accumulation; take note that, on the right side has shown some kind of a discoloration.

Picture #4:
This picture shows the perforated holes are clogged with the whitish soiling accumulation and is recommended to removed it with the help of a tooth pick to clear up all these clogged-up holes; prior to Prep-7.7 application.
This picture shows stitching holes, perforated holes and seam gaps; avoid pushing the Prep-7.7 unnecessary into such crevices and holes.

Picture #3:
This picture shows the overall view and the non-leather areas can also be strip clean of soiling accumulation too.

The overall scope of works would involve the following phases:

1] Restorative Cleaning:
Prep-7.7 > Cleaner-3.8 > Rinse-3.0

2] Inspection:
It’s a visual inspection to check for complete soil removal satisfaction.
And it’s followed with stickiness testing on the cleaned surface if the original finish is still healthy, with decision to pH neutralizing it further with Acidifier-2.0.

3] Leather Rejuvenating:
This is concentrated on the absorbent perforated and stitching holes and seams.
Hydrator-3.3 > Fatliquor-5.0

3] Dry Preparation:
Eraser-4

4] Topcoat Refinishing:
Topcoat-72M (matte)

5] Non-stick, rub-resistant, anti-slip grip protection
Protection-D


To begin:

1.1] The clogged perforated holes are removed using toothpick to unplug the holes.

1.2] Apply the Prep-7.7 to either the Eraser-4 or the horsehair Brush-1 and either agitate brush or gently scrub or a combination to remove the accumulated soiling.

1.3] Suspended soiling is immediately extracted by towel provided or terry towel that can soak up more.

1.4] Heavy areas may require repeated application, agitation or gently scrubbing and extraction until they are visibly gone.

1.5] Sticky residue is clean over with Cleaner-3.8 with help of horsehair Brush-1 follows with Rinse-3.0.


Inspection:

2.1] Take pictures of the result of the after cleaned and evaluate from there in terms of removal and tackiness satisfaction


Will continue after viewing the pictures. . .

Roger Koh
[email protected]

Roger Koh
04-06-2012, 12:42 PM
#1. This picture shows that there are still whitish dots that need to be further removed.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo3.jpg

#2. This picture shows whitish streaks and holes that are still not entire cleaned.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo4.jpg

#3. This picture shows that the topcoat may not be there anymore; that’s the result that the Colorcoat becomes more vulnerable and the deteriorated has been removed excessively. A need to reduce the removable of the color.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo5.jpg

#4. This picture shows the contrasting appearance due to the top grains color has been removed and the lower groves still retain the original finishes. The lost of the finish may be due to contributing factors such as worn, deteriorated that lost the adhesion and being removed during the cleaning process. Note that color refinishing is necessary for a holistic restoration.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo6.jpg

#5. This picture shows a good even appearance; minus the residual lint.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo7.jpg

#6 This picture shows the perforated holes are still plug with accumulated soiling that need to go, perhaps with help of using toothpick and the horsehair Brush-3. It looks like the holes are crack with flap and may be detected with the feel of hand. These roughnesses will be smoothened during the color refinishing repair with three additional products namely: Adhesor-73 + Thicknener-48 + Micro-Pigment-54 Black.
http://i300.photobucket.com/albums/nn4/Rogerkoh/Leather%20Auto%20Interior/photo8.jpg


Roger Koh
[email protected]