JK-HairCoat products are permanent and restorative hair coating agents that make human hair silky (bone-straight), vivid, tangle-free, moist, soft, smooth, and glossy, with improved texture and shine.
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JK-HairCoat is developed by John (JK), combining over 25 years of experience in hair chemistry and coating technology.

 

With only 3 g (or 3 ml) of JK-HairCoat, approximately 1 kg of human hair can be treated
— equivalent to five full wigs, ten hair extensions (100 g each), or ten wefts (100 g each).

This is possible because JK-HairCoat is a highly concentrated micro-emulsion, engineered
to form an ultra-thin, uniform ionic surface coating, rather than relying on volume.
As verified by professional evaluators, this micro-coating delivers beautiful shine,
remarkable results, and natural movement, while maintaining softness, silkiness,
and tangle-free performance — even after dozens of washes.

“Beautiful shine. Natural movement. Proven durability — wash after wash.”

“Ultra-thin ionic coating that keeps hair smooth, silky, and tangle-free over time.”

WIGSCIENCE — The Origin of JK-HairCoat

 
   
 
 
JK-HairCoat is a highly effective solution for improving hair durability and performance.

The effects—especially those of JK-CW7882-SEV and JK7889-EmC — last for several months or longer, even after dozens of washes.

JK-HairCoat works by forming a thin, uniform coating layer that smooths the hair surface and reduces inter-fiber friction.

In non-Remy hair with moderately intact cuticles, this coating can significantly improve manageability, softness, and shine.

However, in cases of severely damaged or highly porous hair—where cuticle scales are raised, fractured, or missing—the hair surface resembles a broken asphalt road rather than a smooth highway.

In such conditions, protruding cuticle scales may break through the coating layer, making complete tangle elimination physically unattainable regardless of coating quality.
APPLICATION METHOD A-SQ (Submergining - Small Quantity)
- 1 minute ~ 10 minutes		  
 
 
       
The permanent JK-HairCoat formulations listed below are applied to human hair and synthetic fibers used in hairpieces, wigs, toppers,
hair extensions, toupees, and other hair products, and are designed to retain their effects for months, even after dozens of washes.
[[ Dimensions of a 200 mL Bottle ]]

The two bottles shown beloware identical in size and specifications.		   [[ Dimensions of a 1000 mL Bottle ]]

The two bottles shown beloware identical in size and specifications.
PACKAGE UNIT
 We pack a maximum of 200 mL (200 g) per bottle.
For shipping safety, bulk packaging is available in strong plastic containers of 0.5 kg, 1 kg, 2 kg, 5 kg, and 10 kg (10 liters).
APPLICATION
 Application instructions are simple. Please contact us for detailed guidance.
STORAGE Store JK-HairCoat in a cool, shaded place (5–25°C), away from direct sunlight, following general storage practices for chemicals.
SHELF LIFE
 At least 2 years when stored under recommended conditions.
 




99.99% of hair goods available on the market are treated with wig oils or silicone-based industrial oils to create a silky, soft,
wet, or healthy-looking appearance.

However, these wig oils are not permanent and are removed after one wash, or a few washes at most—similar to makeup being washed off the face.

Moreover, wig oils do not restore damaged hair.

In contrast, our Permanent John-HairCoat products provide long-lasting effects because they are ionically bonded to
human hair and synthetic fibers, forming a unified structure.

Within seconds after applying the HairCoat conditioner mixture by spraying, the permanent hair coating process is completed.
Immediately after application, the hair can be washed, shampooed, rinsed, permed, or otherwise processed.


RETENTIVENESS (DURABILITY) OF JOHN-HAIRCOATS

The hair coating effects—such as silky look, wet look, detangling, and damage protection—are retained for approximately 3 to 6 months, or even after dozens of washes.
 
Q1. Does John's HairCoats obstruct color dye in dyeing human hair wefts ?  

A thin film (membrane layer) formed by HairCoat may slightly affect dye penetration.

However, when dyeing is performed with water at a high temperature, HairCoat does not significantly interfere with the dyeing process.

Hair dyes in salons can generally penetrate the HairCoat membrane without major difficulty.

In addition, when the hair is washed with water—preferably hot water—the microscopic pores in the JK-HairCoat membrane temporarily expand,
allowing hair dye to pass through the membrane and reach the hair cuticle.

  
 
 
Q2. After Iron-hair straightening, will the effect last ?

 
Yes. The effects of JK-HairCoats remain after hair straightening with a flat iron.  
Q3. Does the JK-HairCoats damage the thread of wefts or affect hair color ?  
No. John’s JK-HairCoat causes no change to the strength or quality of the sewing thread, and it does not affect the color of the hair.  
     


         
     
     
         
         
         
 


 

 

 

 

 

 

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since 1993, we produced weft machines, wig machines and glues with experience of manufacturing toupees, hair replacement, human hairpieces, synthetic hairpieces such as braids, wefts, wiglets, toppers, top closures, lace frontals, lace wigs, wigs, human hair pieces; PU skin, skin weft, tape in hairpiece, tape in hair extensions, polyurethane, silicone glue, durable thin skin, JK-haircoat, john korea haircoat, johnkorea hair coating, hair conditioner for bone straight,  and started providing Hands-On-Training courses how to process raw human hair, how to dye , how to make wefts and wigs by machine, how to make lace wigs, toupees by hand, how to make skin weft, tape in hair, clip on hair, Indian Human Hair Extensions, Remy Human Hair, Curly Human Hair, Weft Human Hair , Wavy Human Hair and Virgin Human Hair, special hair conditioner making human hair silky and natural look, how to make various styles of curl and wave patterns like body wave, deep curly, straight, kinky curly, afro kinky 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cuticle hair extensions, full cuticle hair extensions, remy hair lace wigs, remy hair weaving,Besides, we supply wig materials, wig supplies, netting materials use in making or wearing such as Swiss lace, fine monofilament net, knotting needles, knotting needle holders, wigcap liners, double sided adhesive tapes, permanent bonding glue, hair color, hair dyes , color dyes, tangle removal, hair conditioner, haircoat, haircoating, lace wigs, full lace wigs for black women, synthetic lace front wigs, glueless lace wigs, curling, coloring, clips, hair locks, super tape, swiss laces, swiss nets ,swiss mono nets, fine monofilament nets, oven, drier, weft machine, hair implanting, handtie, bond, hard bond, soft bond, brush, 3 head weft machine, sewing thread, nylon thread, silicone, polyurethane, skin, American mono net, German laces, french laces, korean needle, john Korea, johnkorea, jumbo braid, yaki braid, wig oils, cheap full lace wigs, Chinese virgin hair silk top, bleached knots, silk 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