Prepare the solution ( for Immersion (Dipping) Method )

  
  Prepare warm, drinkable water at approximately 40 °C in a suitable container.
(1,000 ml ≈ 1,000 g)		  
  Add 3 g (or 3 ml) of JK-HairCoat to the water, and stir thoroughly.
This creates a 3 : 1,000 (HairCoat : Water) mixing ratio, which we refer to as a 0.3% solution.		  
  Mix thoroughly for about 30 seconds using your hand or a spoon until evenly dispersed.  
     
 

Treatment

  
 

For non-curly hair only, in case of Immersion (Dipping) Method

Immerse (dip) the hair extension, weft, or wig into the solution for approximately 10 seconds.

Recommended immersion time: approximately 5–10 seconds

⚠ Comb very gently for only a few seconds to aligh hair strands and remove residue. (DO NOT over-comb)
⚠ Do not use a brush, but a come - wide-tooth comb.
Longer soaking does not damage hair and does not cause negative effects.
   
For raw hair (purchased in bundles) or finished extensions with no curl/wave,
comb the hair in the JK-HairCoat solution to ensure the solution is evenly distributed throughout the hair
and aligh hait not to become physically tangled, build-up can not be made beteeen hair strands.

Finish by gently squeezing the hair before removal .
   
Do NOT use curved combs. Please use wide tooth combs with straight tip alignment just like a comb, "Comb-Wide-Tooth-SS" and "CW211-WH" below.
 

Combing must be done ONLY while the hair is immersed in the solution


Combing outside the solution may cause pulling and mechanical stress, as the hair fibers are not lubricated and may be interlocked.
The solution acts as a lubricant, reducing friction and helping smooth alignment.

Over-combing may cause excessive mechanical stress, leading to deformation of the hair structure.
This may result in uneven fiber thickness and surface irregularity, preventing the hair from achieving a smooth, silky, and vivid finish.

Submerging time does not significantly affect the result once ionic bonding is complete.
Ionic bonding occurs rapidly within the first 7–10 seconds, and extending the immersion time (e.g., 1 minute, 10 minutes, or 1 hour) does not increase the coating effect much.

  


 

• For curly hair,


Recommended immersion time: slightly longer immersion (up to 1–2 minutes) may be used NOT to increase coating, but to allow even penetration without combing.

• Use a gentle press-and-release motion (hand-off) to help the solution penetrate between hair strands,
and rub hair with fingers gently for even distribution of (the ions of) the JK-haircoat.

• Avoid any pulling force that may distort curls. Do not comb curly hair. The curls may loosen physically.
• If alignment is needed, perform very gentle finger movement or combing ONLY while the hair is still immersed.

• Excessive mechanical force may stretch and loosen the curl pattern.		  
 
For wavy or curly hair, combing is not recommended during treatment.
Combing applies linear tensile force, which can stretch and relax the curl structure. Instead, gently press and release the hair by hand within the solution.
This up-and-down pressing motion allows the treatment medium to penetrate evenly between hair strands without mechanically deforming the curls. Using the palms and fingers, carefully separate lightly bonded strands and massage them apart, creating micro-gaps between hair strands.
This allows the JK-HairCoat solution to penetrate, distribute, and coat the hair uniformly, without causing curl distortion or tangling.		  
   

Video 01
— Immersion (Dipping) Method

Video 02, 03
— Diping & Squeezing method
 
 
     
 

Finish

  
  Gently squeeze out excess solution.
Dehydrate and dry the hair (air-dry or heat-dry).


◆ OPTIONAL: DEHYDRATION (SPIN DRY)

• Household washing machines with horizontal (left-right) rotation may be used, only when using the dehydration (spin) function.
Do NOT use vertical or up-and-down spinning dehydrators.

• Remove approximately 70–80% of the water before drying. No drop of water.

Benefits:
- Significantly reduces drying time
- Helps remove excess carrier residue
- Minimizes build-up formation
- Prevents sticky or oily finishing results


◆ DRYING FOR CURLY HAIR

• Do NOT hang curly hair for drying.
Hanging will stretch the curls due to gravity, resulting in a looser pattern.

• Place the hair flat on a perforated tray (like laying a baby down).
This helps preserve the natural curl shape during drying.

• Recommended tray specification:
- Hole diameter: approx. 5 mm
- Hole spacing: approx. 5 mm

• If the holes are too large, pressure marks may form and distort curls.
• If spacing is too wide, airflow is reduced, slowing down drying.		  
 
   
 
 

◆ ◆ Mixing Ratios (Dipping Method)

When treating hair using the dipping method,
the standard mixing ratio is:

Water : JK-HairCoat JK7882-SEV = 1,000 : 3

With 1,003 ml of prepared solution
(1,000 ml water + 3 ml JK7882-SEV),
you can treat approximately:

  • 1,000 g of hairpieces, or

  • 9–10 wefts, each weighing about 100 g
    (approximately 1/4 pound per weft).

◆ A higher concentration (1% solution) may be required for very small quantities of hair (e.g., one wig or topper), particularly when using a limited total volume of solution or a spraying method, which may result in material loss due to airborne dispersion and insufficient total active quantity may reduce treatment effectiveness.

Even when the mixing ratio (percentage concentration) appears similar, the absolute amount of active ions available for bonding can be significantly different depending on the total volume of solution used.

For example, a standard mix of 1000 ml water with 3 ml of JK-HairCoat yields approximately a 0.3% solution, providing a sufficient total number of cationic molecules (e.g., assumed 3 million units).

However, if the same ratio is scaled down — such as 300 ml water with 1 ml of JK-HairCoat (≈0.33%) — the concentration remains nearly identical, but the total number of available cationic molecules is reduced proportionally (e.g., to 1 million units).

In practical applications, such as treating a wig or hair extension containing approximately 80–100 grams of human hair, a minimum total quantity of active ions is required (e.g., 1.1 million units) to achieve sufficient ionic bonding and full coating.

Therefore, even if the percentage concentration is maintained, using too small a total volume may result in insufficient absolute quantity of active material, leading to incomplete treatment.

For this reason, when working with very small amounts of solution (e.g., minimal water usage or spraying methods), a higher concentration (e.g., 1% solution) may be necessary to compensate for the reduced total number of active ions.

Technical Note

➕A higher concentration (1% solution) may be required
when using a limited total solution volume (e.g., 100–300 ml)
in immersion or dipping methods, especially for small quantities of hair,
to ensure sufficient contact and penetration.

In spraying methods, a higher concentration may also be required,
as some of the material may be lost due to airborne dispersion.
 

Our JK-HairCoat products are formulated using an emulsion-based system, with components such as Vaseline-like materials, fatty alcohol derivatives, fatty acid salts (soap-like substances), and non-ionic surfactants, along with proprietary coating agents.

These supporting ingredients function as a carrier-like delivery system, helping to transport and evenly distribute the proprietary active coating components of JK-HairCoat, developed by John Yim, onto the hair.

They do not form the coating themselves; rather, they enable the formation of an extremely thin, lightweight coating layer on the hair — not a heavy or greasy substance.

If excessive amounts are used or if the product is not evenly distributed, residue may remain between hair strands, potentially leading to build-up (a sticky or heavy feel).

For best results:

  • Maintain the recommended mixing ratio of approximately 0.3%, not over 1%, 10%

  • Gently comb the hair while it is immersed in the solution to ensure proper alignment and even distribution (DO NOT over-comb, not 1 minutes, but some or several seconds only)

  • Pre-arrange the hair (hackling or combing) before treatment, especially for bulk hair

  • After treatment, spin drying is recommended to remove excess solution and further minimize build-up

The coating reaction occurs rapidly (within about 10 seconds) through ionic bonding. Once formed, this ultra-thin coating layer remains stable and is not removed during spin drying.

Practical Capacity Example

When preparing a 0.3% solution,
200 ml (or 200 g) of JK7882-SEV can treat approximately66.6 kg of hair or hairpieces using the dipping method in large-scale processing.

Video Reference

Video 1: Demonstration using a 100-liter container used in:

  • Submerging 10 kg of hairpieces in a solution made with
    60 ml of JK7882-SEV + 30 liters of water

  • Or submerging 20 kg of hairpieces using
    50–80 liters of water + 100 ml of JK7882-SEV
Q & A
Question-1 : With 200 ml of JK-HairCoat, how many kilograms of hair can be treated or processed?

Answer-1 : 66.6 Kgs

With 200 grams (200 ml) of JK-HairCoat,
approximately 66.6 kg of human hair can be treated using the dipping method.

With 1 kg of JK-HairCoat (JK7882-SEV),
approximately 333 kg of human hair can be treated by dipping.
Q & A

Question-2 : When treating 10 kg of hair, how much JK-HairCoat is required?
Answer-2 : 30 gr (or 30 ml) of a HairCoat is needed.

Up to 10 kg (10,000 grams) of human hair can be treated with
30 g (30 ml) of JK-HairCoat using a 0.3% solution via the dipping method.
 
 
 

200 ml Bottle

This 200 ml bottle is typically used to fill
approximately 200 g of JK-HairCoat product,
depending on formulation density.

  

1 Liter Bottle

This 1 liter bottle is typically used to fill
approximately 1 kg of JK-HairCoat product,
depending on formulation density.
Note:
Some videos may not play properly on certain mobile devices.
For the best viewing experience, please use a desktop or laptop computer.
   
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