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Hi,
I just got off the phone with a gentleman who suggested I post here with a picture of my sticky sofa.
I used some soapy water to clean it off and I made it a lot worse..
What products should I get, and instructions do I need, to bring it back to new?
Thank you,
Greg
>>> I used some soapy water to clean it off and I made it a lot worse.
What is clean off is probably the secondary transparent color (Bicast-76), although the color system also comprises of a primary opaque color (Bicast-32) may improve the appearance.
>>> I post here with a picture of my sticky sofa.
Sticky sofa is commonly associated with Bicast and other simulated leathers that have its urethane topcoat deteriorated. Alkaline and solvent contends products worsen or quickens the deterioration. Solution to this problem is to remove all foreign contamination with low pH products like Degreaser-2.2 (pH 2.2) in combination with Acidifier-2.0 (pH 2.0) as rinse. Deteriorated clear topcoat is partially removed stop shot of color removal; otherwise primary and or secondary coloring restores the appearance prior to new urethane topcoat application with BicastTop-76G. To rectify the stickiness 10% of Crosslinker-25 is added to the topcoat prior to application. A routine non-stick protector-B+ helps to keep the new coatings a new lease of useful life.
Roger Koh
Leather Care Consultant
[email protected]
Further readings:
Bicast / Bycast leather is split leather with a layer of polyurethane applied to the surface and then embossed. Bicast was originally made for the shoe industry and recently adopted for use by the furniture industry. The result is a slightly stiffer product that is cheaper than top grain leather but has a much more consistent texture and is easier to clean and maintain. The use of terms like "leather", "genuine leather" or "100% leather" in relation to this bicast treatment is considered a misrepresentation and therefore not permitted in some countries. Furniture made with bicast exhibits none of the characteristics associated with aniline leather. With constant use, the polyurethane layer may crack and split free of its backing. Other common problem is the finish becomes sticky
Attachment 4169
Leather DoctorŽ Kit B8.cl, Bicast Leather Color Refinishing Kit
Leather DoctorŽ 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.
Attachment 4170
Leather DoctorŽ Kit-B7, Bicast Leather Sticky Topcoat Refinishing Kit
Leather DoctorŽ Kit-B7, bicast leather sticky topcoat refinishing kit is an innovative system developed for bicast leather to restore finishes sticky problem. The sticky problem is often described from owners as follows. The finish gone dull on the seating areas and any material comes in contact sticks to it. The finishes feels a bit rubbery but after 5mins of sitting clothing were stuck to it. The location that suffers tackiness also reveals roughness to the touch. When sitting down and getting up, there is the sound of tape pulling and you can actually see a pattern on the couch from the jeans. If these experiences sound familiar then this kit is the answer. Stripping the surface contamination is done with Degreaser-2.2 and the help of Eraser-4 for better traction to removed surface materials. Suspended soiling is towel extracted and rinse with Acidifier-2.0. 2000-grit sandpaper is used to smoothen rough surface. A 10% Crosslinker-25 is added to the BicastTop-76G for extra finish strength from stickiness. Protector-B+ imparts a non-stick buttery-feel against sticky soiling; a rub-resistant against friction wear and diffuses a leather scent that enhances leather sensuous and luxuriously.
Instruction
Wet Preparation:
1. Protect floor with plastic covering from overspray and drips prior to stripping accumulated soiling.
2. Shake the Degreaser-2.2 to gel prior to use.
3. Transfer to the Eraser-4 on the sponge side for normal cleaning and the crepe side for an extra scrub.
4. Apply with agitation onto the leather finish to remove surface soiling.
5. Suspended soiling is extracted with a lint-free towel or cleaning sponge until towel shows clean.
6. Spray Acidifier-2.0, agitate with Eraser-4 and extract until towel shows clean again.
7. When dry, sand surface roughness and ensure free of foreign material with 2000-grit sandpaper.
8. Speed dry with hair dryer, free of residue and is ready for topcoat application.
Refinishing:
1. Crosslinker-25 10% is added into the BicastTop-76G to control existing stickiness. Empty the entire 7gm of Crosslinker-25 into the 70ml half filled bottle of BicastTop-76G and stir or swill it well. Once the topcoat is cross-linked, it is best to used within 8 hours, otherwise it will be cured hard and be useless.
2. Apply by foam brush lightly to avoid streaks or use soft varnishing brushes for streaks free result or airbrushing for professional result.
3. Steaks are corrected by fine 2000-grit sanding when dry.
4. Use a hair dryer for speed drying in-between coats to satisfaction.
5. Let it overnight cure before non-stick protection.
>>> What products should I get, and instructions do I need, to bring it back to new?
For sticky problem you will need Leather Doctor Kit-B7
For appearance you will need sealer coat Adhesor-73 and a secondary color Bicast-76 Red-Brown or Antique Brown or a mix to match as individual add-on to the Kit B7.
You get specific instructions from this forum.
Okay, so let me confirm:Quote:
Originally Posted by Roger Koh
If I get this kit, I won't need to get anything else? This will cover fixing both the color and the stickiness?
Leather DoctorŽ Kit B8.cl, Bicast Leather Color Refinishing Kit
If I get this kit, I will need to get two additional protects--the Adhesor-73 and Bicast-76 Red-brown or Antique Brown?
Leather DoctorŽ Kit-B7, Bicast Leather Sticky Topcoat Refinishing Kit
Also, I'm having trouble finding both the first kit mentioned and the Bicast-76. Could you link these for me, please?
Thank you for your help,
Greg
>>> If I get this kit, I won't need to get anything else? This will cover fixing both the color and the stickiness?
Leather DoctorŽ Kit B8.cl, Bicast Leather Color Refinishing Kit.
You would need the Crosslinker-25 to mix with BicastTop-76G to solve the stickiness problem.
>>> If I get this kit, I will need to get two additional protects--the Adhesor-73 and Bicast-76 Red-brown or Antique Brown?
Leather DoctorŽ Kit-B7, Bicast Leather Sticky Topcoat Refinishing Kit
Correct.
>>> Leather DoctorŽ Kit B8.cl, Bicast Leather Color Refinishing Kit.
http://www.leatherdoctor.com/bicast-...r-kit-b8-cl-1/
>>> Bicast-76
http://www.leatherdoctor.com/bicast-76/