Leather Bicast Sticky Topcoat Refinishing - Kit-B7+ by Leather Doctor is an up-size version of Kit-B7 with double the cleaning coverage and topcoat refinishing formulated to restore the common sticky problem associated with Bicast and Simulated urethane finished leathers. The owner often describes the sticky problem as follows: The finish has gone dull on the seating areas and any material comes in contact sticks to it. The finishes feel 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. A new product introduced is the CleanPro-1.5 (pH 1.5), which takes care of the general areas, follows with Acidifier-2.0 as a rinse. This restorative cleaning both removes foreign contamination and reduces stickiness at the same time. Stripping the surface contamination including conditioners and protectors to the original finishes is done by Degreaser-2.2 with the help of LeatherEraser-6 for better traction to removed surface materials. Suspended soiling is a lint-free towel extracted and rinse with Acidifier-2.0. Sanding helps reduce surface roughness if any and the dust-free surface is ready to receive a new topcoat. A 10% Crosslinker-25 is added to the BicastTop-76G prior to refinishing for extra finish strength. The application is dry between coatings until matching up to the original luster level. Protector-B (scentless) imparts a non-stick buttery-feel against sticky soiling and rub-resistant against friction-wear. The optional Protector-B+ extra feature further diffuses a leather scent enhancing the leather more sensuously and luxuriously. This starter kit is formulated as a holistic system, with 3 coatings BicastTop-76G + Crosslinker-25 covers approximately 80 square feet. Optional adds-on and refills are available as individual bottles. This kit comes with reduced weight, to save on shipping, ease of handling and reduced freezing during winter season, thus all the concentrates in the bottles have to be cut/mix and fills with distilled water prior to use.
Instruction . . .
Step-1 Preparation: 1- Protect floor with plastic covering from over-spray and drips prior to restorative cleaning and stripping accumulated soiling. 2- CleanPro-1.5 is spray and work with horsehair Brush-1 and LeatherEraser-6 and towel extracted until towel shows clean. 3- Use the Eraser-4 sponge side for normal cleaning and the crepe side for extra scrub from embedded materials. 4- Degreaser-2.2 is used in combination with the body contact oil and grease areas especially to the headrest and the hand-rest. 5- Shake the Degreaser-2.2 from separation to gel prior to use. 6- Apply by brushing with Brush-1 and/or scrubbing with LeatherEraser-6 to remove surface soiling. 7- Suspended soiling is extracted with a lint-free towel or cleaning sponge until the towel shows clean. 8- Spray Acidifier-2.0, agitate with Brush-1 and LeatherEraser-6 and extract until towel shows clean again. 9- Inspect for reduced tackiness, otherwise spray soaks Towel-T5 with Acidifier-2.0 and place until towel dries for inspection. 10- When dry, sand surface roughness and ensure free of foreign material. 11- Surface is ready for topcoat application when smooth and free of residues.
Step-2 Dry Preparation: Prior to topcoat refinishing, ensure that all deteriorated topcoat is thoroughly sand off with an oscillating sander using sanding grit, 800, 1000 to 1200. Vacuum off powder residue and wipe with Acidifier-2.0. When the surface is dry, sticky inspection is done with fingers to detect any such stickiness, otherwise repeat accordingly, prior to topcoat refinishing commencing from Step-3.
Step-3 Topcoat Refinishing: 1- Empty the Crosslinker-25 25gm bottle (about 10%) into the BicastTop-76G 220gm bottle and swirl very well. 2- Once the topcoat is cross-linked, it is best to use within 8 hours, otherwise it will lose its cross-linking strength. 3- Apply by foamBrush-3 lightly to avoid streaks or finer soft varnishing brushes for streaks free result or using a 3" sponge paint roller or fine airbrushing for a professional result, to satisfaction. 4- Steaks are corrected by fine sanding when dry. 5- Use a hairdryer for speed drying in-between coats to satisfaction. 6- Let it overnight cure before applying the non-stick Protector-B.
Note: Test for satisfaction otherwise post your pictures and problem to http://www.leathercleaningrestorationforum.com/forum/forumdisplay.php?55-Upholstery-Bicast-Faux-Vinyl-Simulated-Leather for consultation prior to Step-4.
Step-4 Protection: 1- Protector-B is applied evenly with either foamBrush-3 or Towel-5 and is ready for use when dry. 2- For routine application, a paper towel is recommended for simultaneous soiling extraction.
Kit Content and Product Description . . .
Leather Doctor CleanPro-1.5 (250ml). http://www.leatherdoctor.com/cleanpro-1-5-2/ This is a water-based pH 1.5 restorative cleaner/pH balancer. It is for removing general soiling and reducing tackiness at the same time. Alkaline cleaners swell the urethane coating that contributes to its tackiness. Acidic cleaners contracts the swelling thus reduces the tackiness effect. Works with Acidifier-2.0 for rinsing to a squeaky-feel as a restorative system.
Leather Doctor Degreaser-2.2 (250m). http://www.leatherdoctor.com/degreaser-2-2/ This is a water-based pH 2.2 high viscosity formulated leather degreaser. It is for degreasing leather of oil, grease and sweat stains from skin and hair contact. Suspended soiling is rinsed with Acidifier-2.0 to a squeaky-feel as a degreasing system.
Leather Doctor Acidifier-2.0 (2 x 250ml). http://www.leatherdoctor.com/degreaser-2-2/ This is a water-based pH 2.0 leather acidifier to rinse and pH balance tackiness from alkaline soiling contamination.
Leather Doctor BicastTop-76G (220gm). http://www.leatherdoctor.com/bicasttop-76g/ BicastTop-76G is a heavy-duty gloss topcoat formulated for Bicast leathers. This is a water-based fine particular size urethane-resin emulsion to protect Bicast finishes with excellent toughness and flexibility. To rectify sticky or tacky finishes problem, up to 10% of Crosslinker-25 is added prior to application.
Leather Doctor Crosslinker-25 (25gm). http://www.leatherdoctor.com/crosslinker-25/ This is an auxiliary for refinishing topcoats to improve adhesion properties and increase topcoat film strength. This is a high solid, polyaziridine cross-linker, without the VOC (volatile organic compound). It is super-concentrated and when incorporating a 10% to the topcoat it will significantly boost adhesion. By creating a tougher film that also ties up some of the hydrophilic elements for reducing tackiness.
Leather Doctor Protector-B (250ml). http://www.leatherdoctor.com/protector-b/ This is a scentless (leather scented version use Protector-B+), non-film forming, a non-stick, rub-resistant protector that impart a natural buttery-feel. Its non-stick breathable barrier is essential to shield the detrimental effects of sticky soiling. Its natural buttery-feel protection increases the leather resistance to wet and dry rubs, thus reduce stretch, scuff, and abrasion. It reduces friction squeaks that wear the finishes and helps prolong the finishes. Its non-stick property reduced tackiness or stickiness.
LeatherBrush-1 (1pc). http://www.leatherdoctor.com/leatherhorsehairbrush-1/ This horsehair detailing brush is designed ergonomically to be an extension of our hand with a sturdy grooved grip. It is designed to produce effective results easily and efficiently. It is recommended for all smooth leather for soft and scratch-free cleaning. Its length is 7 inches with a three-row bristle 1½ inches cleaning head. For fast cleaning swing the brush like a car screen wiper.
Towel-5 (5pcs). http://www.leatherdoctor.com/towel-5/ This towel works like cloth, lint-free, highly absorbent, washable and stretchable. The general application is for extracting suspended soiling or for spreading hydrator, fatliquor or protector. It is used for both dye and topcoat padding for smooth leathers. Also used for the ‘reverse transferring’ of dye stains.
FoamBrush-3 (1pc). http://www.leatherdoctor.com/foambrush-3/ This is dense foam that resists tearing and shredding and carries more material. It has a solid wood handle that allows greater control for quality results. It is used for controlling and spreading fatliquor for more even distribution.
Sand-2000 (1pc). http://www.leatherdoctor.com/sandpaper-2000grit/ This 2000grit sandpaper is selected to smooth in-between dried topcoat application when necessary.
LeatherEraser-6 (1 pc) This is a 2.75" x 2" rough and flexible rubber eraser with good traction for effective dry and wet soiling removal.
Visit: www.LeatherCleaningRestorationForum.com for help and support.
Email: info@LeatherDoctor.com for further information.
Great product, sofa is like new!
Posted by Chris on 28th Jul 2015
After about 8 years of use, my Natuzzi sofa became sticky on the seat cushions, to the point where it would transfer fibres from clothing onto the sofa. I tried contacting some local repair outfits and their response was that I would be better off buying a new sofa due to the nature of the bicast leather material. Their quotes for repair were around the $900 mark.
Faced with a potentially unusable sofa, I did some research on the internet which led me to Leather Doctor and the Bicast Leather sticky topcoat kit. I placed the order and the kit arrived within days.
I followed the preparation process, being careful to remove all of the fibres which were transferred to the sofa using degreaser and the 2000 grit sandpaper once the leather was dry.
The acidifier made a huge difference in how the leather felt. No more stickiness! Finally, when the leather was once again dry, the urethane topcoat was applied. Be sure to apply this evenly to avoid streaking. It also darkens the colour of the leather slightly. Once the urethane was dry, the sofa looked nearly new, and the sticky problem solved. Final treatment was the the protector which gave a smooth feel to the leather, and also restores the original leather smell.
One kit is enough for one 3-place sofa. I had a 3-place and a 2-place to refinish and the kit was only enough to do the seating surfaces and the fronts of both, but not the backs or the sides.
Well worth the investment!