Perfectly Tailored Kapton PCB by PCBTok

The Kapton PCB falls under the polyimide sector. In comparison to traditional PCBs, it is more rigid, resilient, inert, and temperature-tolerant.

PCBTok conducts thorough CAM file reviews before production, sends weekly work-in-progress status reports, and all circuit boards are IPC Class 2 or 3.

We also frequently participate in trade events like Electronica Munich and PCBWest. Furthermore, we allow third-party factory audits and inspections.

Avail of our great deals today by sending us your Kapton PCB specifications directly!

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Dedicated to Delivering Superior Quality Kapton PCB

Since we stepped into this industry, PCBTok has constantly provided its consumers with the finest quality products and exceptional product performance.

Along with that continuous objective, we can produce all sorts of high-performing Kapton PCBs at a relatively affordable rate without compromising the item’s quality.

We are continuously enhancing the skills of our personnel to deliver our consumer’s innovative outputs. We are capable of customizing Kapton PCB for your purposes.

PCBTok provides timely service and shipment with high-quality output worldwide.

We are an advanced company that can satisfy all of your OEM purchases. Kindly write us your specifications, and we’ll be more than pleased to assist you in achieving them!

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Kapton PCB By Feature

Flexible PCB

The Flexible PCB that we incorporate in this particular board is among the most popular ones in the market because of its wide array of benefits in applications, including easier installation and repair, better thermal management, and reliability.

Rigid-Flex PCB

The Rigid-Flex PCB that we integrate into this particular board can be an ideal option for confined or compact-size devices since they are capable of miniaturization. Moreover, they are commonly found in industrial and military apparatus.

Multilayer PCB

The Multilayer PCB that we incorporate in this particular board has become popular in the medical sector due to its improved functionality and compact design. Additionally, it can offer high capacity and high speed at a smaller footprint.


The HDI PCB that we integrate this particular board into is highly reliable possesses enhanced signal integrity that can be useful for transmitting data and has high reliability. In addition, they are widely utilized in automotive and wearable technology.

Polyimide PCB

The Polyimide PCB that we incorporate in this particular board is among the commonly utilized board type in the market because of its exceptional resistance to heat, chemical, and physical stress. Thus, they are ideal for harsh usages.


The FR4 PCB we integrate into this particular board offers an exceptional resistance-weight ratio. Moreover, it is moisture resistant and has excellent mechanical strength and better insulating capacity which are ideal for various electronic applications.

What is Kapton PCB?

In a simple definition, a Kapton PCB is recognized to have a sturdy electronic circuit. It is also comprised of polyimide polymers, renowned for managing temperature in extremely hot or cold conditions.

Amide and anhydride interact at extreme temperatures and pressures to generate these compounds through a polycondensation reaction. Moreover, this bonding’s tolerance to chemical contamination and stiffness are two significant advantages.

As a consequence. you can utilize this circuit board for various demands, including High-Volume PCB operations. Nevertheless, what makes it the most popular circuit board in the present time is its excellent temperature regulation.

Do not hesitate to contact us if you’re interested in getting one for quicker service!

What is Kapton PCB?
Primary Characteristics of Kapton in PCB

Primary Characteristics of Kapton in PCB

Below are some significant features of a Kapton PCB:

  • It can withstand a range of temperatures, from low to extremely high.
  • It can maintain its physical, mechanical, and electrical components between -268.9 to 400 degrees Celsius.
  • Its properties have excellent insulation and resistor making it useful in the aerospace industry.
  • It can display hot and cold tolerance.
  • Due to radiation management, it is utilized in the chemical industry.
  • For labeling purposes, it can be essential.

Advantages of Kapton PCB

This particular board has been widely popular in numerous fields of electronics due to its exceptional features and benefits. In this article, we’ll provide you with some of its benefits.

  • It is frequently used in a variety of applications. Due to its versatility, it works well in a broad range of product performance.
  • It helps increase the flexibility of various electronic devices and can shorten the construction process.
  • It is possible to enhance the flow of signals between the various devices.
  • The adaptability of Kapton circuitry leads to improved power efficiency; its constant dielectric ensures the smooth transmission of electrical information.
  • It is possible to reduce the footprint of the circuitry required for most applications using this board.
Advantages of Kapton PCB

Select PCBTok's Premium Grade Kapton PCB

Select PCBTok's Premium Grade Kapton PCB
Select PCBTok's Premium Grade Kapton PCB

PCBTok has been operating in the professional industry for over a decade, so we are fully equipped with knowledge and experience in producing superb Kapton PCBs.

Furthermore, we fully possess different certifications established by the international guidelines; IPC, ISO, UL, RoHS, and many other accreditations.

Since we are strict with the product’s quality, we are continually investing in upgrading our facilities and enhancing the skills of our engineers. Additionally, we offer 24/7 customer, technical, sales, and engineering services.

In terms of the rates that we offer, we can deliver you a Kapton PCB at a reasonable price without compromising its quality; we can meet your desired budget for your projects.

Immediately call us to avail our best deals!

Kapton PCB Fabrication

Why Do We Employ Kapton Polyimide in our PCBs?

One of the significant purposes of establishing a Kapton polyimide circuitry was to minimize the circuit’s size and form while strengthening its efficiency and longevity.

That leads us to why we should integrate it into standard circuitry. First, it is because of its thermal power consistency.

Secondly, it is because of its enhanced adaptability. It has outstanding mobility and resiliency that typical boards don’t possess.

Finally, it is because of its extreme durability. It can still manage and function despite being exposed to high temperatures and other substances.

Kindly contact us if you have any questions relating to this.

Why Select Kapton PCB Material in Production Process?

Due to their unique thermal resistance property, Kapton PCBs are beneficial in various manufacturing applications. Now, let’s go over some of its other explanations.

It starts by creating flexible circuits that function exceptionally well electrically. Thus, they provide a smooth circulation of electrical impulses.

Secondly, they are essential through both high- and low-density mountain layouts. Consequently, this increases their usage versatility.

Ultimately, the electrical assembly procedure is comparatively more straightforward because of its polyimide material.

Feel free to write us with any PCB concerns you may have.

OEM & ODM Kapton PCB Applications

Medical Equipment

Since almost all equipment in the medical industry has the potential to get exposed to radiation, they utilize this kind of board that’s tolerant to such.

Aircraft Electronics

Due to this board’s exceptional resistive nature and good quality insulators, they are widely deployed in aircraft and aerospace electronics.

Digital Devices

One of the advantages of this particular board is its flexibility, which is crucial in almost all digital devices; thus, they widely prefer this sort of board.

Military Industry

In the military industry, it is essential to have a good flow of signals that is hard to interrupt; hence, they utilize this kind of board for such purposes.


Another device that requires a versatile board in their operations is the laptop; therefore, it necessitates this particular board that can suffice this demand.

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PCBTok | China’s Well-Recognized Kapton PCB Supplier

In our facility, we deploy half a thousand trained and qualified professionals.

We are taking these steps to ensure that the final product is defect-free.

Kapton PCB Production Details As Following Up

NO Item Technical Specification
Standard Advanced
1 Layer Count 1-20 layers 22-40 layer
2 Base Material KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
3 PCB Type Rigid PCB/FPC/Flex-Rigid Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
4 Lamination type Blind&buried via type Mechanical blind&burried vias with less than 3 times laminating Mechanical blind&burried vias with less than 2 times laminating
HDI PCB 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating
5 Finished Board Thickness 0.2-3.2mm 3.4-7mm
6 Minimum Core Thickness 0.15mm(6mil) 0.1mm(4mil)
7 Copper Thickness Min. 1/2 OZ, Max. 4 OZ Min. 1/3 OZ, Max. 10 OZ
8 PTH Wall 20um(0.8mil) 25um(1mil)
9 Maximum Board Size 500*600mm(19”*23”) 1100*500mm(43”*19”)
10 Hole Min laser drilling size 4mil 4mil
Max laser drilling size 6mil 6mil
Max aspect ratio for Hole plate 10:1(hole diameter>8mil) 20:1
Max aspect ratio for laser via filling plating 0.9:1(Depth included copper thickness) 1:1(Depth included copper thickness)
Max aspect ratio for mechanical depth-
control drilling board(Blind hole drilling depth/blind hole size)
0.8:1(drilling tool size≥10mil) 1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil)
Min. depth of Mechanical depth-control(back drill) 8mil 8mil
Min gap between hole wall and
conductor (None blind and buried via PCB)
7mil(≤8L),9mil(10-14L),10mil(>14L) 5.5mil(≤8L),6.5mil(10-14L),7mil(>14L)
Min gap between hole wall conductor (Blind and buried via PCB) 8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating) 7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating)
Min gab between hole wall conductor(Laser blind hole buried via PCB) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2)
Min space between laser holes and conductor 6mil 5mil
Min space between hole walls in different net 10mil 10mil
Min space between hole walls in the same net 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)
Min space bwteen NPTH hole walls 8mil 8mil
Hole location tolerance ±2mil ±2mil
NPTH tolerance ±2mil ±2mil
Pressfit holes tolerance ±2mil ±2mil
Countersink depth tolerance ±6mil ±6mil
Countersink hole size tolerance ±6mil ±6mil
11 Pad(ring) Min Pad size for laser drillings 10mil(for 4mil laser via),11mil(for 5mil laser via) 10mil(for 4mil laser via),11mil(for 5mil laser via)
Min Pad size for mechanical drillings 16mil(8mil drillings) 16mil(8mil drillings)
Min BGA pad size HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold) HASL:10mil, LF HASL:12mil, other surface technics are 7mi
Pad size tolerance(BGA) ±1.5mil(pad size≤10mil);±15%(pad size>10mil) ±1.2mil(pad size≤12mil);±10%(pad size≥12mil)
12 Width/Space Internal Layer 1/2OZ:3/3mil 1/2OZ:3/3mil
1OZ: 3/4mil 1OZ: 3/4mil
2OZ: 4/5.5mil 2OZ: 4/5mil
3OZ: 5/8mil 3OZ: 5/8mil
4OZ: 6/11mil 4OZ: 6/11mil
5OZ: 7/14mil 5OZ: 7/13.5mil
6OZ: 8/16mil 6OZ: 8/15mil
7OZ: 9/19mil 7OZ: 9/18mil
8OZ: 10/22mil 8OZ: 10/21mil
9OZ: 11/25mil 9OZ: 11/24mil
10OZ: 12/28mil 10OZ: 12/27mil
External Layer 1/3OZ:3.5/4mil 1/3OZ:3/3mil
1/2OZ:3.9/4.5mil 1/2OZ:3.5/3.5mil
1OZ: 4.8/5mil 1OZ: 4.5/5mil
1.43OZ(positive):4.5/7 1.43OZ(positive):4.5/6
1.43OZ(negative ):5/8 1.43OZ(negative ):5/7
2OZ: 6/8mil 2OZ: 6/7mil
3OZ: 6/12mil 3OZ: 6/10mil
4OZ: 7.5/15mil 4OZ: 7.5/13mil
5OZ: 9/18mil 5OZ: 9/16mil
6OZ: 10/21mil 6OZ: 10/19mil
7OZ: 11/25mil 7OZ: 11/22mil
8OZ: 12/29mil 8OZ: 12/26mil
9OZ: 13/33mil 9OZ: 13/30mil
10OZ: 14/38mil 10OZ: 14/35mil
13 Dimension Tolerance Hole Position 0.08 ( 3 mils)
Conductor Width(W) 20% Deviation of Master
1mil Deviation of Master
Outline Dimension 0.15 mm ( 6 mils) 0.10 mm ( 4 mils)
Conductors & Outline
( C – O )
0.15 mm ( 6 mils) 0.13 mm ( 5 mils)
Warp and Twist 0.75% 0.50%
14 Solder Mask Max drilling tool size for via filled with Soldermask (single side) 35.4mil 35.4mil
Soldermask color Green, Black, Blue, Red, White, Yellow,Purple matte/glossy
Silkscreen color White, Black,Blue,Yellow
Max hole size for via filled with Blue glue aluminium 197mil 197mil
Finish hole size for via filled with resin  4-25.4mil  4-25.4mil
Max aspect ratio for via filled with resin board 8:1 12:1
Min width of soldermask bridge Base copper≤0.5 oz、Immersion Tin: 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area)
Base copper≤0.5 oz、Finish treatment not Immersion Tin : 5.5 mil(Black,extremity 5mil), 4mil(Other
color,extremity 3.5mil) , 8mil( on copper area
Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area)
Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area)
Base copper 2 oz-4 oz: 6mil, 8mil( on copper area)
15 Surface Treatment Lead free Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge
Leaded Leaded HASL
Aspect ratio 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)
Max finished size HASL Lead 22″*39″;HASL Lead free 22″*24″;Flash gold 24″*24″;Hard gold 24″*28″;ENIG 21″*27″;Flash gold(electroplated gold) 21″*48″;Immersion Tin 16″*21″;Immersion silver 16″*18″;OSP 24″*40″;
Min finished size HASL Lead 5″*6″;HASL Lead free 10″*10″;Flash gold 12″*16″;Hard gold 3″*3″;Flash gold(electroplated gold) 8″*10″;Immersion Tin 2″*4″;Immersion silver 2″*4″;OSP 2″*2″;
PCB thickness HASL Lead 0.6-4.0mm;HASL Lead free 0.6-4.0mm;Flash gold 1.0-3.2mm;Hard gold 0.1-5.0mm;ENIG 0.2-7.0mm;Flash gold(electroplated gold) 0.15-5.0mm;Immersion Tin 0.4-5.0mm;Immersion silver 0.4-5.0mm;OSP 0.2-6.0mm
Max high to gold finger 1.5inch
Min space between gold fingers 6mil
Min block space to gold fingers 7.5mil
16 V-Cutting Panel Size 500mm X 622 mm  ( max. ) 500mm X 800 mm ( max. )
Board Thickness 0.50 mm (20mil) min. 0.30 mm (12mil) min.
Remain Thickness 1/3 board thickness 0.40 +/-0.10mm( 16+/-4 mil )
Tolerance ±0.13 mm(5mil) ±0.1 mm(4mil)
Groove Width 0.50 mm (20mil) max. 0.38 mm (15mil) max.
Groove to Groove 20 mm (787mil) min. 10 mm (394mil) min.
Groove to Trace 0.45 mm(18mil) min. 0.38 mm(15mil) min.
17 Slot Slot size tol.L≥2W PTH Slot: L:+/-0.13(5mil) W:+/-0.08(3mil) PTH Slot: L:+/-0.10(4mil) W:+/-0.05(2mil)
NPTH slot(mm) L+/-0.10 (4mil) W:+/-0.05(2mil) NPTH slot(mm) L:+/-0.08 (3mil) W:+/-0.05(2mil)
18 Min Spacing from hole edge to hole edge 0.30-1.60 (Hole Diameter) 0.15mm(6mil) 0.10mm(4mil)
1.61-6.50 (Hole Diameter) 0.15mm(6mil) 0.13mm(5mil)
19 Min spacing between hole edge to circuitry pattern PTH hole: 0.20mm(8mil) PTH hole: 0.13mm(5mil)
NPTH hole: 0.18mm(7mil) NPTH hole: 0.10mm(4mil)
20 Image transfer Registration tol Circuit pattern vs.index hole 0.10(4mil) 0.08(3mil)
Circuit pattern vs.2nd drill hole 0.15(6mil) 0.10(4mil)
21 Registration tolerance of front/back image 0.075mm(3mil) 0.05mm(2mil)
22 Multilayers Layer-layer misregistration 4layers: 0.15mm(6mil)max. 4layers: 0.10mm(4mil) max.
6layers: 0.20mm(8mil)max. 6layers: 0.13mm(5mil) max.
8layers: 0.25mm(10mil)max. 8layers: 0.15mm(6mil) max.
Min. Spacing from Hole Edge to Innerlayer Pattern 0.225mm(9mil) 0.15mm(6mil)
Min.Spacing from Outline to Innerlayer Pattern 0.38mm(15mil) 0.225mm(9mil)
Min. board thickness 4layers:0.30mm(12mil) 4layers:0.20mm(8mil)
6layers:0.60mm(24mil) 6layers:0.50mm(20mil)
8layers:1.0mm(40mil) 8layers:0.75mm(30mil)
Board thickness tolerance 4layers:+/-0.13mm(5mil) 4layers:+/-0.10mm(4mil)
6layers:+/-0.15mm(6mil) 6layers:+/-0.13mm(5mil)
8-12 layers:+/-0.20mm (8mil) 8-12 layers:+/-0.15mm (6mil)
23 Insulation Resistance 10KΩ~20MΩ(typical:5MΩ)
24 Conductivity <50Ω(typical:25Ω)
25 Test voltage 250V
26 Impedance control ±5ohm(<50ohm), ±10%(≥50ohm)

PCBTok offers flexible shipping methods for our customers, you may choose from one of the methods below.

1. DHL

DHL offers international express services in over 220 countries.
DHL partners with PCBTok and offers very competitive rates to customers of PCBTok.
It normally takes 3-7 business days for the package to be delivered around the world.


2. UPS

UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.


3. TNT

TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.


4. FedEx

FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.


5. Air, Sea/Air, and Sea

If your order is of large volume with PCBTok, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.

Note: if you need others, please contact your sales representative for shipping solutions.

You can use the following payment methods:

Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.

Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.

Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.

Credit Card: You can pay with a credit card: Visa, Visa Electron, MasterCard, Maestro.

Quick Quote
  • “To be honest, I am thrilled with PCBTok’s services and products; it was beyond my expectations. In my previous supplier, I never experienced a perfect package from them; there will always be one piece of my boards that was damaged. However, despite my bulk purchases, I never had that same encounter with PCBTok; it was securely packaged and well-taken care of during its shipment. Since they are communicating with the couriers, they can simply monitor the conditions of the customer’s orders. Now, I can highly suggest them to any of your PCB requirements; they are highly capable of fulfilling your demands.”

    Scott Rangel, Electronics Engineer from Fort Wayne, Indiana
  • “I’ll be straightforward; PCBTok is a company that genuinely values its consumers and their needs. They will constantly ask if there’s anything they could help me with and provide their professional insights about it. In terms of the product’s quality, it is evident that they really exert an effort in producing my products flawlessly since none of them are defective during their operations. It clearly shows how they live up to their values and objectives. If you’re someone who seeks the appropriate manufacturer, then I can strongly advise taking PCBTok; I am living proof of how great they are in their jobs.”

    Howard Bowers, Design Engineer from Duisberg, Germany
  • “Although PCBTok isn’t my very first supplier of circuit boards, I am deeply impressed with their performance, both in their services and the quality of the products. There’s nothing they can’t do in your PCBs; they have all the resources and experienced personnel capable of fulfilling your requirements regardless of the complexity. Also, they utilize high-class materials on my board because of their outstanding quality and exemplary performance during their application. With that, I’d like to give my deepest gratitude to the people behind PCBTok; you’re all awe-inspiring!”

    Trevor Blankenship, Senior Staff Engineer from Samara, Russia
Is Kapton PCB Better Than FR-4 PCB?

In this article, we’d like to provide insight and distinctions between an FR-4 PCB and a Kapton PCB. At the end of the article, you’ll recognize the ideal option for you.

  • Tensile Strength – Compared to FR4 PCB, Kapton PCB has a tensile strength of roughly 231 MPa. Kapton, which produces a firmer PCB than FR4, is therefore suited for most optoelectronic devices.
  • Functionality and Durability – Due to Kapton’s robust nature, they are preferred in a wide array of operations.
  • Heat Resistance – Although both boards are flame resistant, the Kapton has more of an edge. Despite the FR4 being resistant to flame, its heat dissipation isn’t remarkable. Also, in terms of thermal cycling, Kapton wins.
  • Integration Efficiency – If incorporation is desired, the FR-4 boards won’t work. The ideal option is the versatile Kapton board; it can be altered into any appropriate shape.
Which Types of Polyimides are Deployed in Kapton PCB?

Kapton PCBs come in various varieties, each with unique benefits. The principal ones are as follows:

  • Pure Polyimides – Innumerable chemicals and halogenated flame retardants are absent from second-generation polyimides. As a result, they are significantly more thermally stable than the majority of polyimides used nowadays.
  • Third (3rd) Generation Polyimides – They have flammability resistance-boosting compounds that make them helpful in dampening out electrical fires.
  • Filled Polyimides – They contain a polyimide and a filler. The filler guarantees low epoxy contraction, preventing gaps from forming during drilling and setting.
  • Low-Flow Polyimides – They are less flexible because they contain a range of fillers, including circulation dampers and resins.
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