Your Elite Waterproof PCB Manufacturer in China

PCBMay is a top-tier manufacturer of high-end waterproof PCBs in China. We can custom your waterproof PCB and provide its real-quick solution according to your preferences.

  • 10+ years in waterproof PCB manufacturing
  • ISO, REACH, UL, and RoHS certified
  • Quality-based waterproof PCB with specialized features
  • 24/7 quick response and order delivery 
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Waterproof PCB is Your Best Choice for Your Project

If you seek the best waterproof PCB provider for your PCB business and projects, feel free to rely upon PCBMay. We are famous for being an intelligent manufacturer of multi-purpose waterproof PCBs in China. We can assist with your custom layout and help to support your business and projects. 

Message us directly! 

Types of Waterproof PCB Meet Your Requirements

Smart Watch Waterproof PCB

It has a maximum board thickness of 1.6mm – 3.2mm and comes from numerous colors. It was tested through ICT, FCT, and AOI. Suitable for any smartwatch prototyping applications.  

Game Keyboard Waterproof PCB

It manufactures through the CEM 1-3, 94v0, and RRV basic materials. It has a copper thickness that reaches 1OZ to 10OZ. Perfect in any sort of game keyboard component. 

Wireless Speaker Waterproof PCB

Suitable installation for your wireless speaker. It comes in plenty of shapes, sizes, and colors depending on your purpose. It has a copper thickness that reaches 0.5-4oz. 

Electric Toothbrush Cleansing Waterproof PCB

We only use those sturdy CEM 1-3, FR4, and high-frequency board materials in order to manufacture electric toothbrushes cleansing waterproof PCBs. Highly resilient for cleaning applications. 

Wireless Charger Waterproof PCB

It has an estimated thickness of 0.125mm-6.00mm and can be customized depending on your requirements. Approves through IPC-A-600F and MIL-STD-105D quality standards.    

Radio Waterproof PCB

Our radio waterproof PCB can be customized depending on your applications. It has a board thickness of 0.2mm-5.00mm. A certified ISO, UL, and RoHS approved.

Why Choose PCBMay for Your Waterproof PCB

Select PCBMay for all your waterproof PCB needs and requirements. We have full-length knowledge to offer you a massive variety of waterproof PCB. PCBMay owns the most comprehensive workshop facilities that are advantageous enough to generate tons of waterproof PCB.  

Moreover, we are 100% assure that all of our waterproof PCBs are safe, liable, efficient, and long-lasting to use. It is 100% inspected by our rich-experienced engineers and inspectors. Every waterproof PCBs can obtain the UL, ISO, RoHS, and REACH certificate approval. 

We have our 24/7 order service team and fast delivery system in charge of all your waterproof PCB orders. Could you send us your inquiries right away? 

VPC Plating Line

Related Waterproof PCB Boards

Customized Waterproof PCB
Customized Waterproof PCB
We can offer you our customized waterproof PCB at the lowest pricing rate. It is ideal and safe in any of your electronic installations.
Multilayer Waterproof PCB
Multilayer Waterproof PCB
A wide range of multilayer waterproof PCBs is accessible here at PCBMay. UL, RoHS, and ISO approved. High-end for PCB installations and applications.
Amplifier Waterproof PCB
Amplifier Waterproof PCB
It comprises 100% sturdy aluminum as base materials. It has a minimum line spacing of 0.1mm and is suitable for your amplifier.
Flexible Waterproof PCB
Flexible Waterproof PCB
Flexible waterproof PCB features unique flexible and waterproof base materials that help your devices work functionally. Easy for installations.
Chiller Waterproof PCB
Chiller Waterproof PCB
PCBMay offers a wide range of chiller waterproof PCBs specializing in having a 12V to 36V voltage power. Long-lasting waterproof PCB for your devices.
Xbox Waterproof PCB
Xbox Waterproof PCB
Avail all sorts of Xbox waterproof PCB inexpensively. It has a PCB thickness of 0.40mm to 3.2mm. A perfect material in any of your Xbox models and versions.
Power Supply Waterproof PCB
Power Supply Waterproof PCB
Get the newest and most upgraded power supply waterproof PCB. It is a perfect element in residential, mechanical, and automotive attachment.
Backplane Waterproof PCB
Backplane Waterproof PCB
Choose a perfect selection of backplane waterproof PCBs for your business and project installations. It features 0.5oz to 2.0oz of copper thickness.

Waterproof PCB Production Details As Following Up

Brown Oxide
PTH Line
VCP Plating   AOI  Exposure E-Test
Layer Count1-40layers
Base MaterialKBShengyiShengyiSF305FR408FR408HRIS410FR406GETEK370HRIT180ARogers4350BRogers4000PTFE Laminates(Rogers seriesTaconic seriesArlon seriesNelco series)Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
Board TypeBackplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
Board Thickness0.2-5.0mm
Copper ThicknessMin. 1/2 OZ, Max. 10 OZ
PTH Wall25um(1mil)
Maximum Board Size1100*500mm(43”*19”)
Min laser drilling size4mil
Min. Spacing/Tracing2.7mil/2.7mil
Solder MaskGreen, Black, Blue, Red, White, Yellow,Purple matte/glossy
Surface TreatmentFlash gold(electroplated gold)ENIGHard goldFlash goldHASL Lead freeOSPENEPIGSoft goldImmersion silverImmersion TinENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger.
Min. Annular Ring3mil
Aspect ratio10:1(HASL Lead freeHASL LeadENIGImmersion TinImmersion silverENEPIG);8:1(OSP)
Impedance control±5ohm(<50ohm), ±10%(≥50ohm)
Other TechniquesBlind/Buried Via
Gold Fingers
Press Fit
Via in Pad
Electrical Test

Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:

TU-872Modified EpoxyDOWNLOAD2003403.8-4.03.8
RO 3010Cer/PTFEDOWNLOAD50010.2
RO 4003Hydrocarbon/CerDOWNLOAD>2804253.38
RO 4350BHydrocarbon/CerDOWNLOAD>2803903.48
RT/duroid 5880PTFE/GlassDOWNLOAD5002.2
ISOLAPolyclad 370HRFR4DOWNLOAD1703404.8-5.1
HitachiMCL-BE- 67GModified EpoxyDOWNLOAD1403404.94.4
MCL-LX-67YSpecial LaminateDOWNLOAD185-195325-3453.4-3.6
NelcoN4000-13Modified EpoxyDOWNLOAD210-2403653.73.6
N4000-13EPModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13SIModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13EP SIModified EpoxyDOWNLOAD210-2403503.43.2
ArlonArlon 25NCerDOWNLOAD2603.38
Arlon 25FRCerDOWNLOAD2603.58
Arlon 33NPolymideDOWNLOAD>2503534
Arlon 35NPolymideDOWNLOAD>2503634.2
Arlon 85NPolymideDOWNLOAD2503874.2
StablcorST325DOWNLOADThermal conductivity:75w/m.k(with 1oz copper)
ST10DOWNLOADThermal conductivity:325w/m.k(with 1oz copper)
Bergquistht-04503DOWNLOADThermal conductivity:2.2w/m.k(with 1oz copper)


PCBMay 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 PCBMay and offers very competitive rates to customers of PCBMay.
It normally takes 3-7 business days for the package to be delivered around the world.

DHL Forwarder

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.

UPS Forwarder

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.

TNT Forwarder

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.

Fedex Forwarder

5. Air, Sea/Air, and Sea

If your order is of large volume with PCBMay, 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.

On our website 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 credit card: Visa, Visa Electron, MasterCard, Maestro.

    Your Professional Waterproof PCB Manufacturer 

    Seeking the highest-quality waterproof PCB is not a massive difficulty if you choose PCBMay as your most significant provider. PCBMay is your no.1 choice for your PCB prototyping components and assembly, specifically the waterproof PCB. It has the highest technology elements and a waterproof coating membrane that makes it more ideal. 

    Unlike other PCB, waterproof PCBs are a versatile feature of any PCB component. All electronic elements will remain functional and operated even with constant flowing or stationary of water and any liquid substance on the board surface.

    Moreover, waterproof PCB specializes in high-transition power, high-efficient function elements. It is also sustainable and stable in operations. We have tons of classifications of waterproof PCB that perfectly suit all your PCB applications and installations.

    PCBMay has a solid and stable workforce that designates research, design, planning, layout, and manufacturing of waterproof PCB. PCBMay exceeds in surpassing all the multifarious quality standards of all the customers.

    Besides, we also comply with and follow all the international product certification systems, including the ISO9001:2008, RoHS, REACH, ISO9001:2015, UL (E477880), and ISO14001:2015. In PCBMay, all sorts of PCB features like the multilayer PCB, aluminum PCB, metal core PCB, flexible PCB, HDI PCB, flex-rigid PCB, heavy copper PCB, roger PCB, etc.

    We involve in distributing all types of PCBs to all leading market outlets, local and international. Experience an endless satisfaction of waterproof PCB here at PCBMay. We can cater to all your ideal designs, layout, and features for your waterproof PCB.

    PCBMay offers both OEM and ODM services. And also, we accept a tremendous amount of your waterproof PCB orders. We have our excellent delivery team who manages to quickly deliver your orders anytime, anywhere. 

     You can reach PCBMay anytime! We have our servicing and communication team who can entertain all your concerns, suggestions, complaints, and inquiries about the product.  

    For the newest update of waterproof PCB, don’t forget to check our official website or reach us on our hotline!

    Waterproof PCB: The Ultimate FAQ Guide

    Do you want to protect electric circuits from water-related hassles?

    Waterproof PCB brings a solid solution in this case. It obstructs the entry of minimum water. So this PCB remains worthwhile for a long period. Its outstanding efficiency in protecting PCB makes it the best choice for electronic applications.

    PCBMay is the most elite manufacturer of waterproof PCB. We have intended to provide you with its details in this FAQ guide. We hope it will benefit you in experiencing the excellence of electric circuits.

    Let’s start.

    What Is A Waterproof PCB?

    A waterproof PCB is a unique circuit board that can obstruct the constant flow of water. Its components remain operative despite getting connected to water or any other liquids.

    It transmits high-power signals with great efficiency. This PCB is composed of effective materials. Its versatile categories and advantages make it suitable for numerous PCB installations.

    Waterproof PCB

    Waterproof PCB

    It upgrades the activities of electronic devices in wet weather. Its flexible features increase its applications greatly. Most noteworthy, this multi-skilled PCB boosts the durability and functionality of devices.

    What Are Waterproof PCB Materials?

    Waterproof PCB materials have a huge contribution in applying waterproofing techniques. These materials support the encapsulation of resin materials and coatings.

    The basic PCB materials are Parylene C, epoxy resin, polyamide, CEM1, CEM3, FR-4, etc. This PCB controls the temperature effects, impedance control, data transmission, etc.

    Waterproof PCB Materials

    Waterproof PCB Materials

    Acrylic, silicon, etc are coating materials used in the conformal coating. Waterproof PCB can be viable for multilayer design due to these PCB materials.

    What Are The Different Types Of Waterproof PCB?

    Waterproof PCB has countless classifications. The most used types are-

    Radio Waterproof PCB

    Radio Waterproof PCB

    What Are The Applications Of Waterproof PCB?

    The applications of waterproof PCB are rising with a positive slope. Impressive features with high functionality are the real factors behind it. Its vital applications include-

    • Control systems of navy
    • Submarines
    • Navigation devices
    • Radar
    • Wireless communication system
    • Industrial pieces of machinery
    • Radio-frequency devices
    • Automotive devices
    • Relays
    • Medical types of equipment
    • Robotics
    • Smartwatch applications
    • Keyboard
    • Wireless speaker
    • Cleaning devices

    Widely Used Waterproof PCB

    Widely Used Waterproof PCB

    Besides, waterproof PCB has a mandatory presence in prototype PCB projects.

    What Are The Benefits Of Waterproof PCB?

    The most noteworthy benefits of waterproof PCB are described here for you. Let’s have a look.


    PCB keeps the device functional because of its waterproof feature. It makes the components active in humid weather efficiently. Its effective and safeguarding layers avoid damage in high-power data transmission.


    It can operate during the consistent flow of water. That means your electronic gadgets don’t get affected by water due to waterproofing measures and PCB enclosure. So, a device along with the circuit remains productive without declining efficiency.

    Highly Functional Waterproof PCB

    Highly Functional Waterproof PCB


    Some coating techniques are very costly. But, you get a tremendous gadget in exchange for a competitive cost. So. it will be cost-effective in the long run.


    Waterproof PCB makes the circuit extremely durable. It can tolerate excessive water flow, corrosion, dust, etc. This property ultimately develops the performance of electromagnetic appliances.

    What Is The IP Rating Of A Waterproof PCB?

    The IP rating of a waterproof PCB is IP68 and IP69.

    IP is the short form of ingress protection. This rating determines the permittivity of solid and liquid substances in PCB. Here, the first digit indicates the protection level against solids like dust. Its highest value is 6. It means A PCB application is completely air-tight.

    Waterproof PCB IP 68 Rating

    Waterproof PCB IP 68 Rating

    The second digit specifies the protection level against liquids. Such as moisture, water, etc. Its range is 0 to 9. If you notice 8 in the 2nd place of IP rating, you can be sure that the PCB can resist extreme immersion.

    9 indicates the resistance against high-speed jet spray. Usually, waterproof PCB offers maximum protection against dust and water. That means IP67, IP68, and IP69 are common for this PCB.

    We have been manufacturing waterproof PCB for more than 15 years. Contact us for experiencing this PCB having IP68 and IP69 ratings.

    What Are The Processes Used In Waterproof PCB To Resist Water?

    Water damages the circuit board in many aspects. But, there is always a possibility of entering the water to the PCB. That’s why you have to apply some effective processes to make your PCB waterproof.

    You can choose the PCB materials which can resist water effectively. Like Parylene materials are highly worthwhile for waterproof PCB. This process is applicable in naval control devices.

    Waterproof PCB Process

    Waterproof PCB Process

    Again, using an extra layer on the PCB surface is another waterproofing technique. You can apply a dielectric layer through the conformal coating. Resins are also used as a protective layer in this PCB.

    You have to paint the PCB carefully. Usually, spray systems and dispensing are widely-used ways in this case. Dipping the entire PCB in the coating solution is also used sometimes.

    Connectors are a good medium for penetrating water into the PCB. So, you can cover these components by using water-resistant materials.  Thus, A PCB becomes waterproof and increases the shelf life of devices.

    What Is The Epoxy Method In A Waterproof PCB?

    The epoxy method is an effective way to waterproof PCB. Here, we are going to explain this method for your benefit.

    Material Selection

    First, you have to select the necessary parts for the epoxy method. A list is prepared for you here.

    • It should be ensured that epoxy materials are free from any metal additives. This metallic addition produces excessive heat.
    • Blu tack
    • Silicon pad. It is used in the heat conduction of the hot components.
    • Heat sink.
    • Gold Connectors
    • ESD (Electrostatic discharge) strap
    • Balloon

    Exposing PCB

    Next, you need a PCB. You can use a new circuit board or disassemble it from an electronic device. Use glue and clips to hold the PCB properly.

    Epoxy Method In Waterproof PCB

    Epoxy Method In Waterproof PCB

    Using Gold Connectors

    Gold is a less reactive metal compared to copper. That’s why you have to apply the gold connectors instead of older pins or connectors. It also helps to protect the PCB from corrosion.

    Covering And Using Glue

    Now, cover the components where you don’t require using glue. You can use balloons for the SMDs. Apply heat sink for transistors, power amplifiers, etc. These components suffer from overheating.

    Mixing Of Epoxy

    At this stage, you need to mix a sufficient amount of epoxy around the components. Just avoid the epoxy which is electrically conductive. Then, dry the PCB before using silicon coating on the connectors or buttons.

    Proper use of silicon keeps the epoxy intact and obstructs the entrance of water. This is all about the epoxy method in your waterproof PCB.

    How To Identify The Conformal Coating In Waterproof PCB?

    Conformal coating is a shielding technology used in waterproof PCB. You need to identify the type to ensure the elite performance of electronic gadgets. 5 types of conformal coatings are found which are very worthwhile.

    • Epoxy Resin (ER)
    • Polyurethane Resin (PR)
    • Silicon Resin (SR)
    • Acrylic Resin (AR)
    • Parylene Resin (XY)

    You can identify these coatings by applying some measures. Such as:

    Label Checking

    This is the easiest way to be sure about the conformal coating in a waterproof PCB. You just need to verify the label placed on the PCB. Like SR for Silicon coating, XY for Parylene coating, etc.

    Waterproof PCB Conformal Coating

    Waterproof PCB Conformal Coating

    Material Testing

    If you fail to find the specific label on the circuit board, then try to test the coating materials. This method is also viable in the identification of conformal coating. You can test transparency, robustness, solubility, thickness, etc in this case.

    Watch this video:

    How Can You Remove The Conformal Coating In Waterproof PCB?

    Waterproof PCB needs to go through the repairing process for its better use. Then, you can remove the conformal coating from this PCB. You have to consider the PCB materials, coating materials, and trace dimensions in this case.

    The following techniques are effective to eliminate the conformal coating.

    Thermal Process

    This process applies heat to burn the coating at low temperatures. This burning-through technique effectively withdraws Acrylic, Epoxy, Parylene, Urethane, and Silicon coatings. There is always a chance of overheating and fumes that damage the components.


    Sometimes, hard types of conformal coating are applied in waterproof PCB. Such as Epoxy, Parylene, urethane, etc. Scraping is useful to remove these kinds of coatings. But, it demands extra care to perform this removal successfully.

    Conformal Coating Removal In Waterproof PCB

    Conformal Coating Removal In Waterproof PCB

    Chemical Solvent Process

    You can apply chemical solvents to eliminate conformal coatings which are sensitive to concentrated chemicals. Acrylic, silicon, and epoxy coatings can be removed in this way.

    Micro Blasting

    This coating removal system deals with a mixture of dense air and soft grinding. You can excessively use micro blasting during the withdrawal of acrylic coatings.

    Besides, peeling is another viable way in this event. This removal is a sophisticated issue. The wrong selection and technique lead to serious damage to your electronic devices.

    What Is The Structural Technique Used In Waterproof PCB?

    The structural technique is very primary level protection of waterproof PCB. Here, you have to keep the PCB in a box that is waterproof. Usually, most of the materials used in this box are hydrophobic. They deliver effective isolation to the PCB applications.

    Waterproof PCB Structural Technique

    Waterproof PCB Structural Technique

    This conventional way can not provide upper-level protection against water and moisture. But, it is applicable in moderate wet conditions. There are some drawbacks found in this structural method of waterproofing PCB.

    • This is not effective for low-scale PCB production concerning the cost.
    • The box used here can be deformed due to external stress.

    So, its application is relatively low compared to the conformal coating or using epoxy resins. You should choose a waterproofing method based on your PCB requirements.

    How To Ensure Impedance Control In Waterproof PCB?

    Impedance control is a mandatory subject for a waterproof PCB. It ensures stability in impedance that develops the current conduction of electric circuits. It is required to look after the factors which affect the impedance in this PCB.

    Stable Waterproof PCB

    Stable Waterproof PCB

    Usually, impedance in electronic components depends on the electric permittivity and the dielectric dimensions of the substances. To achieve impedance stability, you should take care of the following issues-

    • Select effective materials. It is necessary for maintaining the dielectric properties.
    • Ensure temperature control. High temperature increases the impedance in electric circuits.
    • Calculate the dielectric thickness concerning the current load of this PCB.

    How Do You Compare Conformal Coating With Encapsulation Resin In Waterproof PCB?

    Conformal coating and encapsulation are widely used methods to restrict water, moisture, external stress, etc. The comparative anatomy of these two technologies is presented here for you.

    Process Of Restricting water

    Conformal coating adds a non-conductive layer of dielectric materials. Like Acryline, Silicons, Parylene, etc are notable coatings used in PCB. On the contrary, encapsulation deals with a layer made of resin material. This dark color resin covers the PCB to obstruct water.

    Level Of Protection

    Encapsulation provides better protection than conformal coating. Parylene, Acrylic, etc coatings require a strong housing facility. But, encapsulation itself resists the entry of water efficiently.

    Temperature Effect

    Resin materials produce unrestrained heat, which is responsible for decreasing the longevity of PCB. So, encapsulation is less effective in high temperatures compared to conformal coating.

    Physical Stability

    The resin layer is thicker than the insulating dielectric layer. So, potting or encapsulation of resin renders better physical stability than conformal coating. Electronic devices with resin encapsulation can also tolerate more mechanical pressure.

    Conformal Coating in Waterproof PCB

    Conformal Coating in Waterproof PCB


    Conformal coating is suitable for lightweight PCB components. But, encapsulation supports components having different weights.


    Both of these techniques are used in numerous applications. Since resin’s heat production is high, the manufacturer avoids encapsulation in some cases. But, its functionality, stress resistance, etc are commendable.

    On the other hand, the conformal coating has immense utilization in waterproof PCB of electrical projects. That’s why you should make a choice considering your application.

    Is Nano-coating Effective For Waterproof PCB?

    Nano-coating saves the waterproof PCB from the contact of liquid substances. This coating method improves the endurance of the electric circuits. It creates an additional layer on the PCB surface. This layer has strong resistance against water.

    Waterproof PCB Nano Coating

    Waterproof PCB Nano Coating

    But, the thickness of this waterproof layer is very low. It is at the nanometer level. That’s why nano-coating is not so effective in all cases. It is viable in micro-electro-mechanical systems (MEMS) and nano-technology.

    It delivers impressive performance in the presence of stave-off surface water. Its great solvent protection promotes the electrical performance of waterproof PCB to a large extent. But, you should apply a heavier layer for continuous high water flow.

    How Does Temperature Change Affect Waterproof PCB?

    Temperature change promotes the deficiency in waterproof PCB. This phenomenon affects PCB in so many ways. Such as:

    • Increased temperature reduces the dielectric features of the PCB materials.
    • It is difficult to maintain the sustainability of coating because of excessive heat.
    • Solder joints get damaged for this issue.
    • Inconsistent and excessive temperature change hampers the thermal resistance of PCB applications.
    • Impedance is increased due to a high temperature.
    • Thermal dissipation becomes difficult in a significant temperature change.

    Effective Waterproof PCB

    Effective Waterproof PCB

    That’s why you have to design a waterproof PCB considering these effects of temperature change. Only a worthwhile and experienced manufacturer can assure you of PCB having a controlled thermal state. So, contact us.

    Can Waterproof PCB Be Customized?

    Definitely. Waterproof PCB allows customization during the manufacturing process. That means you can make your PCB compatible with your required circuit design.

    It renders you an ideal opportunity to add a wireless charging facility, radio frequency transmission, etc in this protective PCB. Moreover, you can incorporate power amplifiers here.

    These additional features make your projects more secure and functional even in extremely wet conditions. This facility is not common for all PCB suppliers. So, you need to consult about the PCB custom solutions to a trusted manufacturer.

    Customized Waterproof PCB

    Customized Waterproof PCB

    Which Surface Finish Is Good For Waterproof PCB?

    Usually, ENIG (Electroless Nickel Immersion Gold) and HASL (Hot air solder level) are useful surface finish methods for waterproof PCB. Both of these processes add some value to the PCB performance. Such as:

    • These methods are appropriate for applying conformal coating and encapsulation on the PCB surface.
    • ENIG is supportive of the strong solder connection. It reduces the chance of getting oxidized.
    • You can switch the coating components without serious hassle in these cases.
    • ENIG and HASL are highly resistant to corrosion.
    • The immersion gold surface finish makes the PCB surface flatter. So, you can manage the placement of vias and components easily.

    ENIG Surface Finish In Waterproof PCB

    ENIG Surface Finish In Waterproof PCB

    Between these effective surface finish technologies, ENIG delivers better performance in this PCB application. Watch this video:

    What Is A Waterproof PCB Enclosure?

    A waterproof PCB enclosure is one kind of PCB protective apparatus. You can keep the PCB inside of this enclosure. IP68 PCB enclosure restricts water successfully and saves the PCB.

    Its impressive IP ratings and durability make it usable both outdoors and indoors. The PCB enclosure is made of waterproof materials. That’s why it can provide sufficient protection to the water-sensitive PCB.

    Waterproof PCB Enclosure

    Waterproof PCB Enclosure

    It is recommended for you to use the enclosure even if you apply resins or conformal coating. It makes a strong barrier around the PCB along with the coating methods.

    How Can You Test Waterproof PCB?

    Waterproof PCB testing includes many trustworthy methods. Here the flying probe test and the AOI test are explained below.

    Flying Probe Test

    In this case, the inspector of the testing touches the surface through the conductive probes. A certain current is applied during this inspection. Then you can see the signals. PCB soldering, wiring, wrong connections, etc can be tested in this cheap flying probe test.

     Waterproof PCB Testing

    Waterproof PCB Testing

    AOI Test

    Here, The automated optical inspection machine captures the PCB images. Then, this machine checks its problems by comparing it with a perfect PCB. It is run rapidly. This reliable testing costs relatively high.

    Can You Use Waterproof PCB In A Multilayer PCB Stackup?

    Waterproof PCB’s features are highly effective for the multilayer PCB Stackup. It requires maintaining different dielectric constants for separate layers. Besides, the use of the right surface finish and vias are important factors in the multilayer PCB design.

    Multilayer Waterproof PCB

    Multilayer Waterproof PCB

    The materials used in waterproof PCB have a good reputation for their dielectric properties. These dielectric substances deliver a large span of relative permittivity to the PCB layers.

    Again, thermal management is essential for the waterproof PCB. That’s why you have to place the PCB vias efficiently. This property makes it compatible with the multilayer PCB stack-up. It dissipates the heat with great effectiveness.

    So you can apply this PCB in small size PCB projects. It becomes supremely functional in high-speed communication devices.

    What Are The Limitations Of Waterproof PCB?

    The most considerable limitations of waterproof PCB are-

    • It demands a lot of time to apply resin or conformal coatings.
    • If you fail to choose the right technique, it will be dangerous for your device.
    • It increases the cost of high-volume waterproof PCB production.

    Faultless Waterproof PCB

    Faultless Waterproof PCB

    Contact us. We are trouble-free PCB at reasonable prices. You can also enjoy reliable OEM service through professional PCB specialists.


    Waterproof PCB promotes the application of gadgets in humid situations. You can use it conveniently in high-frequency data transmission services. The integrity of the PCB projects is enhanced greatly.

    PCBMay offers OEM service for this PCB. This FAQ guide explains all important factors of waterproof PCB efficiently. We think you don’t face any difficulty in manufacturing this PCB. Contact us for more information.

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