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Questions!
05-16-2015, 11:58 AM
Hello Roger,

I was recommended to contact you about my leather problems in my 2011 Porsche Boxster and products you may sell to help resolve:

1) My black steering wheel is all shiny from use; how can I restore the factory matte looking finish and feel?

2) My seat bolster has worn/cracked from rubbing with seat belt and getting in and out of car.

I have attached a few pictures. Let me know what you think. Thanks in advance!

Best Regards, H..o


#1
5080


#2
5081


#3
5082

Roger Koh
05-16-2015, 12:39 PM
>>> 1) My black steering wheel is all shiny from use; how can I restore the factory matte looking finish and feel?

Recommend Kit-P3 for this situation and you may see the program of care that matches its existing condition from ‘Preventive Care’, ‘Routine Care’, ‘Periodic Care’ to ‘Restorative Care’ from this link:
http://www.leatherdoctor.com/kit-p3-pigmented-leather-care-kit/

If the steering has not been care for since 2011, then the ‘Restorative Care’ program is recommended.
Surface build-up unwanted shine is removed with Prep-7.7 this product is applied and work with detailing horsehair Brush-1.
Depending on severity of the stains it may leave to dwell overnight.
Sticky residue is removed with Clean-3.8 follows with Rinse-3.0.

Exposed stitching holds and edging is recommended to rejuvenate with Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system.

The appearance is evaluated and scratches damages topcoat may be restored by MicroTop-54M (Matte).
http://www.leatherdoctor.com/microtop-54/

Preventive care is by application of Protector-D to give a dull non-slip draggy feel.


>>> 2) My seat bolster has worn/cracked from rubbing with seat belt and getting in and out of car.

Cracking suggest the drying up of fatliquor original moisture level up to 14%.
Using a leather moisture meter or an equivalent wood moisture meter may read its current moisture level and the difference is top up with Fatliquor-5.0. However the dry and shrunk need to be hydrated to relax and plumps the leather prior to fatliquor replenishing it. Micro cracks when leather rejuvenated will be less apparent (just like mud cracking ponds after rain the cracks smooth out).

Worn by seat belts and friction rubs need the matching color refinished with this Kit-Ap7.cl
http://www.leatherdoctor.com/kit-ap7-cl-auto-pigmented-perforated-leather-color-refinishing-kit/


Let me know how you wish to proceed?


Roger Koh
Leather Care Consultant / Practitioner / Instructor



Product information:

5083
Leather Doctor® Kit-Ap3, auto pigmented and perforated leather care kit is an innovative leather-safe (pH 3 - 5) system designed for keeping leather interior at their highest level of appearance while maintaining their structural chemistry integrity and enhancing their suppleness with needle holes tear strength. Auto leathers are often under hot sun and those exposed to thermal heating during cold season dries out their fat and oil sooner. The first place to check for leather dryness is the stitching holes, if they are perfectly round the leather is healthy, dried out leathers will show signs of elongation or splits. The diminishing of the fat and oil will results in stiffness to the leather and when flexed or stretched during used will lead to cracks or rips first to the stitching holes. Periodic use of Hydrator-3.3 to hydrate the stick together fibers in these weak points prior to fat and oil replenishing with Fatliquor-5.0 will keep the leather supple with increase tensile strength. Thus, reduce the premature ageing of the leather against stiffness, tearing and cracking. Protector-B+ imparts a non-stick rub resistant protection with a buttery feel that makes sliding in and out of seat smoothly. The rub-resistant abilities reduce friction noises that translate into less friction wear especially to the side bolster. Periodic cleaning and rinsing with Cleaner-3.8 and Rinse-3.0 respectively to the steering wheel leather helps reduce greasy sticky soiling build-up. Removing of unwanted stains such as the common new blue jeans is accomplished with Prep-7.7. Note that the mentioned product suffix number denotes its pH value in this leather-safe holistic care system.

Instruction:

Preventive Care:
A non-stick, rub-resistant protection is recommended to be in place before putting the leather to daily use. Protector-B+ imparts a soft natural buttery-feel that enhances the leather luxuriously to the sense of touch. The non-stick surface shields the leather from sticky soiling thus prolonging the high level of appearance. Rub-resistant abilities reduce friction noises that translate into less friction wear as one slide in and out of auto seats effortlessly with less stress to the seat bolsters. This leather-scented protector diffuses a classic leather scent that boost the sensuous leather more appealing to the leather lover. This protection care commences at the end of each level of routine, periodic or restorative cleaning cycle. A simply spray and wipe prolongs the need for cleaning heavy soiling.
1. Apply Protector-B+ to the seats and Protector-D to steering wheel including the gear shift knob after shaking well spread with lint free towel and is ready for use when dry.

Routine Care:
Routine care includes procedures such as general dust cleaning, attending to spots and stains as required especially the neutralizing of swear stains from shifting alkaline. Thus prevents leather from tackiness. A routine non-stick rub resistant protection after neutralizing rinse helps keep leather interior in a more attractive and healthy state while preventing premature wear.
1. Spray Rinse-3.0, horsehair Brush-1 agitates and towel extract until it shows clean.
2. Apply Protector-B+ to the seats and Protector-D to steering wheel including the gear shift knob after shaking well spread with lint free towel and is ready for use when dry.

Periodic Care:
Periodic care is recommend before soiling causes damages to the finishing. This keeps leather consistently clean and healthy at all times. Driver’s seat would require more frequent attention than the other less frequent used seats. While the leather steering wheel and the gearshift knob get the most of body oil and sweat contacts.

1st phase – Periodic Care:
1. Spray Clean-3.8 and agitate with horsehair Brush-1; ensuring a uniform application over the entire surfaces a section at a time.
2. Towel extract until it shows clean.
3. Remaining residues are spray rinse with Rinse-3.0 and towel extract to a squeaky-clean.
4. Let dry and inspect for satisfaction, otherwise repeat cleaning process as necessary or proceed to hydrating.

2nd phase – Hydrating:
Although pigmented leathers surfaces are usually non-absorbent until micro crazing develops, it is the stitching rows and perforated holes that are usually vulnerable. These weak areas when wet and dry again have the tendency for the fibrils to become stick together resulting in stiffness and when stressed may lead to premature cracks. Hydrating is essential to relax and separate the stick together collapsing fibrous structure. Besides, charging the protein fiber ionic positive for a more effective hydrogen bonding with the ionic negative fatliquor.
1. Spray Hydrator-3.3 control and spread with foam brush to hydrate especially the stitching rows and perforated sections.
2. Let dwell 10 to 30 minutes depending on severity of dryness with optional plastic cling wrapping to control evaporation for a longer dwell time to plumps the leather more effectively.

3rd phase – Fat and Oil Replenishing:
Fatliquor evaporates as VOC (volatile organic compound) when temperature rises especially from exposed micro crazing, perforation and stitching rows. Periodic fat and oil replenishing maintains the leather’s structure integrity and pliability thus strengthen these exposed leather from cracking.
1. Spray Fatliquor-5.0 in like manner as Hydrator-3.3 and let dry naturally.
2. Repeat application in between drying until saturated.
3. Leave the leather for slow natural drying for extra softness.
4. Wipe surface strays with Hydrator-3.3 to free of sticky residue.

4th phase – Preventive Care:
1. Apply Protector-B+ to the seats and Protector-D to steering wheel including the gear shift knob after shaking well spread with lint free towel and is ready for use when dry.

Restorative Care:
Restorative care is the ultimate corrective or salvage care system that removes accumulated soiling including aged conditioners to its original OEM finishes. Accumulated soiling that fills creases is often mistaken for cracks. Restorative cleaning is performed by using Prep-7.7. It works by chemical reaction to emulsify soiling through its penetrating, lubricating and suspending power. Its thick as honey viscosity facilitates coating the surface for effective dwell time. Horsehair detailing Brush-1 is recommended to worked into heavily soiled areas sufficiently to avoid excessive agitation that might damage already weaken finishes especially on heavily used areas. For extreme cases, the Prep-7.7 can stay continuous for up to 72 hours to do its work safely.

1st phase - Restorative Cleaning:
1. Apply Prep-7.7 and agitate with horsehair Brush-1, ensuring a uniform application over the entire surfaces a section at a time.
2. Allow a dwell time of 10 to 30 minutes or before it dries prior to towel extraction until it shows clean.
3. Sticky residue is removed by Cleaner-3.8 with gentle brush agitation and towel extraction until it shows clean.
4. Remaining residues are spray rinse with Rinse-3.0 and towel extract to a squeaky-clean.
5. Let dry and inspect for satisfaction, otherwise repeat Prep-7.7 application with a longer dwell time as necessary or proceed to hydrating.

2nd phase – Hydrating:
Although pigmented leathers surfaces are usually non-absorbent until micro crazing develops it is the stitching rows and perforated holes that are usually vulnerable. These weak areas when wet and dry again have the tendency for the fibrils to become stick together resulting in stiffness and when stressed may lead to premature cracks. Hydrating is essential to relax and separate the stick together collapsing fibrous structure besides charging it ionic positive for more effective hydrogen bonding with the negative ionic fatliquor.
1. Spray Hydrator-3.3 control and spread with foam brush to hydrate especially the stitching rows and perforated sections.
2. Let dwell 10 to 30 minutes depending on severity of dryness with optional plastic cling wrapping to control evaporation for a longer dwell time to plumps the leather more effectively.

3rd phase – Fat and Oil Replenishing:
Fatliquor evaporates as VOC (volatile organic compound) when temperature rises especially from exposed micro crazing, perforation and stitching rows. Periodic fat and oil replenishing maintains the leather’s structure integrity and pliability thus strengthen these exposed leather from cracking.
1. Spray Fatliquor-5.0 control and spread with foam brush to hydrate especially the stitching rows and perforated sections.
2. Repeat application in between drying until saturated.
3. The leather is left for slow natural drying for extra softness.
4. Surface strays are wipe with Hydrator-3.3 to free of sticky residue.

4th phase – Preventive Care:
1. Apply Protector-B+ to the seats and Protector-D to steering wheel including the gearshift knob after shaking well spread with lint free towel and is ready for use when dry.



5084
Leather Doctor® Kit-Ap7.cl, auto pigmented (perforated) leather color refinishing kit is design for abrasion damages especially from friction rubs while getting in and out of seat. Most of these repairs may range from missing finishes to abrading damages into the leather structure. Some expose areas may be contaminated with foreign soiling that includes conditioners, protectors, body oil, grease and sweat or alkaline overexposure with all-purpose cleaners. A comprehensive repair for a long-term lasting solution will require a holistic approach to deal with both the exposed structure and surface finishes. The practical and functional softness and strength of the leather depends on the health of the structure with average thickness between 0.9 to 1.2mm from stiffness and cracking. The aesthetic aspect of the leather finishes averages 0.02mm (or 20 micron) in thickness for practical compressing and flexing from cracking. A preview of a leather-safe restoration system begins by stripping with Stripper-2.3 and rinsing with Rinse-3.0. Degreasing with Degreaser-2.2 follows with Acidifier-2.0. The suffix numbers of these four products denotes it pH value for recharging the protein fiber ionic positive besides the act of decontamination. The leather integrity is revitalized once the ionic attraction between the positive protein fiber and its negative leather constituents like the tanning agent and fatliquor (fat, oil and water) is activated. Leather rejuvenating system for softness and strength is accomplished with Hydrator-3.3 follows with Fatliquor-5.0. Structural weakness from overstretching is re-strengthened with Impregnator-26, while surface uneven absorption is sealed with Adhesor-73. These repair and auxiliary products where necessary reduces the need for color over-coating thus increase its flexibility and stretchability from premature cracking. Protector-B+ imparts a non-stick rub-resistant surface with a buttery feel, reduces noises that translate into less friction wear. As the leather surface is well lubricated it reduces compression when comes to heavy body contact thus reduces compressed creases and wrinkles.

Roger Koh
05-19-2015, 11:41 AM
>>> Also, I see some of the bottles are in both kits/duplicated (like fatliquor 5.0, hydrator 3.3, etc). I wonder if I need two bottles of those products? Or can the kits be consolidated into a custom kit to eliminate duplication?

Recommend that you take the Kit-Ap7.cl and add individual products to the order to eliminate duplication e.g.

Kit-Ap7.cl
http://www.leatherdoctor.com/kit-ap7-cl-auto-pigmented-perforated-leather-color-refinishing-kit/

Clean-3.8
http://www.leatherdoctor.com/clean-3-8/

Protector-D
http://www.leatherdoctor.com/protector-d/

Prep-7.7
http://www.leatherdoctor.com/prep-7-7/

Your black may not be pure black or faded and adjustment with the common white or Ochre accordingly to match.
http://www.leatherdoctor.com/micro-54/



Roger Koh
Leather Care Consultant / Practitioner / Instructor