Natuzzi Leather Couch Desparately needs restoration - Sticky areas

Hi Roger,
Here are the pictures that you have requested. It is a Natuzzi three cushion leather couch. The cushion on the left side is very sticky and doesn't feel like leather. You can see from the fibers that are stuck to it. I am afraid there will be fading of the color but I am not sure. The question how do I know if i need to dye is besides sealing it. I have also included the leather chair that has no damage on it except some scratch marks on the cushion caused by my dog. I want to fix the stickyness and make all of the items (leather couch and two chairs) shiny so they all match. I need to know the material, and sequence and how much material I need to make all three items shining the same way at the end.

Thanks,

here are some additional pictures

>>> I am afraid there will be fading of the color but I am not sure.

Bicast color system consists of 4 layers using these products sequence: Adhesor-73 > Bicast-32 > Bicast-76 > BicastTop-76G. Bicast-32 color is the primary “opaque” to block off the base split leather that becomes the leather base color. Bicast-76 color is the secondary “transparent” to impart beauty of depth. Your post #2 picture 1 shows damages to the primary color. A water droplet test would determine how far it reaches the leather crust. And any creases and wrinkles that becomes absorbent have indicate micro cracking of the finishes and leather rejuvenating to these areas becomes possible and essential to keep the suppleness of the leather structure from stiffness and leads to cracking. A small test will determine the damages to the layers of finishing and repair accordingly.


>>> The cushion on the left side is very sticky and doesn't feel like leather. I want to fix the stickyness and make all of the items (leather couch and two chairs) shiny so they all match.

Stickiness is the result of deteriorating topcoating.
Restorative cleaning using Degreaser-2.2 > Rinse-3.0 system and removing existing deteriorating topcoat by fine sanding and refinishing with BicastTop-76G + Crosslinker-25 will solved the stickiness for any lease of useful life.
Where there are no damages to the color coatings primary and secondary the shine will match up.


>>> I have also included the leather chair that has no damage on it except some scratch marks on the cushion caused by my dog.
Where there are no color damages, dog scratches procedure as done accordingly as the above sequence.


>>> You can see from the fibers that are stuck to it.

The fibers are removed during the degreasing process with help of Eraser-4 (Degreaser-2.2 > Rinse-3.0 + Eraser-4 + Sanding). More damages underneath the stuck fibers may reveal from the topcoat to the secondary color to the primary color and in extreme cases the leather crusts are revealed. In coarse damages to the primary color Bond-3D may be added to the primary coloring for a fast fill-up. When the primary color is in order the secondary color continues. Follow with BicastTop-76G for the desired luster shine.


>>> The question how do I know if i need to dye is besides sealing it

You would need a visual inspection after removing all the stuck fibers.
(Note: Good to have numbers to your picture for easy reference).
It looks like the secondary color is gone on those fiber-damaged areas.
The weaken primary color may be removed during the restorative cleaning and thus a final inspection after the restorative cleaning will decide.


>>> I need to know the material, and sequence

Products mentions are found in this Kit-B7.cl except Bond-3D, Acidifier-2.0, Crosslinker-25


Attachment 5240
Leather Doctor® Kit B8.cl, Bicast leather color refinishing kit is design for a holistic restoration approach to not only the finishes but also rejuvenating the leather crust for suppleness. Most of these repairs are for abrading damages into the leather split-suede crust.
Most of these exposed areas may be contaminated with foreign soiling that includes conditioners, protectors, body oil, grease and sweat or alkaline overexposure from non leather-safe cleaners.
A comprehensive repair for a long-term lasting solution will require a holistic approach to deal with both the exposed leather split-suede for structural integrity and surface finishes for aesthetic.
A leather-safe restoration system begins with removing foreign contamination from the penetrated leather structure and from the surface with the proven Degreaser-2.2 follows with Rinse-3.0 to a healthy squeaky feel.
A pH in-balance leather structure with alkalinity overexposure will manifest as tackiness, stickiness or in extreme cases sliminess. The ionic strength of such denaturing leather will need to be strengthen by protonating its ionic positive (+ve) with the help of Acidifier-2.0 until the leather is revert back to a healthy pH chemistry integrity.
Penetrated soiling may be further moves with the help of Hydrator-3.3 by successive wicking process with optional reverse transfer technique and erase off with Eraser-4 for a satisfactorily inspection.
Leather rejuvenating system for softness and strength is accomplishes with Hydrator-3.3 follows with Fatliquor-5.0.
Surface uneven absorption is seals with Adhesor-73 to smooth out the suede and restore a skin to reduce the need for color over-coating thus increase its flexibility and stretchability from coating premature cracking.
With Adhesor-73 as a base for adhesion promotion as well, it is ready for color coating with Bicast-32 an opaque pigment coloring to block out the unwanted based color. Bicast-76 is an aniline transparent color that gives the beauty of depth as the secondary coloring to simulate the appearance of aniline leather. And BicastTop-76 is a gloss topcoat that seals the coloring from bleeding, crocking and resistant to cleaning during the course of the leather useful life.
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, wrinkles thus prolong the useful life of the new finishes.
Note the products suffix numbers denotes the pH value of the product.

Individual products used in sequences are found in these links:
Degreaser-2.2
http://www.leatherdoctor.com/degreaser-2-2/
Eraser-4
http://www.leatherdoctor.com/leathereraser-4/
Acidifier-2.0
http://www.leatherdoctor.com/acidifier-2-0/
Rinse-3.0
http://www.leatherdoctor.com/rinse-3-0/
Hydrator-3.3
http://www.leatherdoctor.com/hydrator-3-3/
Fatliquor-5.0
http://www.leatherdoctor.com/fatliquor-5-0/
Adhesor-73
http://www.leatherdoctor.com/adhesor-73/
Bicast-32
http://www.leatherdoctor.com/bicast-32/
Bond-3D
http://www.leatherdoctor.com/bond-3d/
Bicast-76
http://www.leatherdoctor.com/bicast-76/
BicastTop-76
http://www.leatherdoctor.com/bicasttop-76g/
Protector-B+
http://www.leatherdoctor.com/protector-b-1/


>>> and how much material I need to make

Recommend that you test out one of the worst piece in order to determine how much you would need, it also depends on the surface areas to cover. Damaged areas will take more products accordingly.


>>> all three items shining the same way at the end.

Shining is easy as it all depends on the amount of BicastTop-76G applied, provided surface have to be all equally even and smooth out. Repairs the dents in one consideration. Color matching is another. Faded and fresh colors have degrees of color intensity differences. In order to even out appearance the entire surface have to be done accordingly.


Further questions are welcome.

Roger Koh
Leather Care Consultant / Practitioner / Instructor