Xekera uses Parylene deposition on PCBs to provide it with a proactive conformal coating. This process requires special vacuum equipment for applying the Parylene coatings under ambient temperatures. A conformal coating of Parylene provides a protective coating for the PCB that is uniform in thickness and is free of pinholes. The coating therefore, offers a complete protection to the PCB from vibration and moisture.
We will be glad to answer any queries from you. Xekera Electronics offers the most trusted solutions for any type of conformal coating. Our conformal coating services are technically the most advanced in the USA.
How Conformal Coatings Work?
We design conformal coatings to form a protective film barrier of polyester over the completed PCB assembly. The conformal coating protects the PCB and its components from extremes of environment and against corrosion providing added protection against formation of tin whiskers. Other conditions from which conformal coatings protect are:
- Moisture ingress
- Corrosive threats from salt and fog
- Electrical leakage
- Shock, vibration, and ambient temperature fluctuations
- Dust ingress
- Fungus build-up
Advantages of Conformal Coatings
For Xekera, it is most critical to ensure the conformal coating is compatible to the design goals of the customer. Therefore, we endeavor to ensure the conformal coating meets the assembly requirements, and is the most efficient solution for the customer. For this, Xekera offers case-by-case variations and adaptable solutions to make the conformal coating an ideal match for the specific need of the customer, beginning from first article to large production quantities.
To achieve the above, we work with the customer and try to generate the best solution for their project. All our teams, engineering, quality control, production, and customer service collaborate with the customer to deliver the best in-depth engineering solution. We start from the design and development stages, offering guidance on compatibility between the product and the conformal coating. Our aim is to be a trusted source for our customers in providing them with our conformal coating services for an advanced shielding for their electronics.
Xekera conformal coating services uses Parylene or Polyparaxylylene, adapting it to case-specific conditions, and offers unparalleled solutions in the US. However, we know that a conformal coating is not simply a covering for sensitive electronics. Conformal coating must be:
- Compatible with all components on the Printed Circuit Board assembly
- Applied to properly cleaned and prepared surface
- Appropriate for the environment where the PCB will be functioning
- Durable and reliable enough to extend the life of the PCB
- Re-workable, cost-effective solution
Application and Inspection of Conformal Coating
Xekera has laboratory services for inspecting and testing a PCB assembly before application of any conformal coating. We ensure surface cleanliness meets our specifications. If necessary, we clean the surface using our indigenously developed plasma processes, ensuring all surfaces are uniform.
Based on our vast engineering expertise, we select the best material for the coating. After we have applied the coating, and cured it, we inspect each coated assembly rigorously for ensuring the quality.
We continuously work towards developing new methods for conformal coating using innovative materials such as Type-1, Type-2, and Type-3, to offer better service to our customers. We strive to improve the overall quality of our products with technological and processing advancements in our organization. This helps us to provide our customers with the finest and latest in circuit board coating services. With over 20 years of industry experience, Xekera Electronics offers the most advanced PCB conformal coating services.
Call us today to learn more about our inspection and testing laboratory services. We also offer two-dimensional X-ray diffraction, environmental screening, and other advanced service options.
Conformal Coating, Potting, and Encapsulation
Conformal coating, potting, and encapsulation are processes that finally protect the printed circuit board and its components. However, the three processes have differences that need consideration before deciding the most optimum coating for a specific PCB.
PCB conformal coating protects a PCB assembly against ingress of moisture, salt, and dust, while preventing contamination and corrosion. Conformal coating forms a non-conductive and thin protective layer on the PCB and its components.
Potting and Encapsulation are also protective coatings, but their method of application on the board differ from that of conformal coatings. For potting and encapsulation, it is necessary to place the PCB within a shell or case, and pour a liquid epoxy compound to fully encase the assembly. Finally, the cured compound including the case are part of the finished assembly.
Which is Better, Conformal Coating or Potting/Encapsulation?
For most applications, potting/encapsulation is a conventional process. High-volume and high-speed production lines use potting/encapsulation for assemblies that may be subject to mechanical abrasion or rough impact. However, inspection can be difficult or nearly impossible as potting/encapsulation forms a thick coating on the PCB. The process is also not suitable for situations where the PCB thickness is a factor. Please consult Xekera Electronics for all your requirements of potting, encapsulation, or conformal coating for your project, and we will provide you with the best solution possible.
Conformal coating services from Xekera Electronics offers a lightweight protective Parylene coating on the PCB. This method provides a solution preferable for PCBs with weight or thickness restrictions. Inspecting our conformal coatings is very simple, as the film is visible in Ultraviolet light. Our conformal coatings provide excellent mechanical, electrical, chemical, and physical protection. With our coatings, our customers can easily inspect and rework their PCBs when necessary.
We will be more than happy to share our experience of potting, encapsulation, and conformal coatings with you for determining the most optimum method for your application. We have experts to help with effective conformal coating, potting, and encapsulation services based on the specifications of your project.
Removing and Reworking Conformal Coatings
PCB assemblies may fail functionally, and need repairs to make them functioning again. If the PCB has a covering of conformal coating, it requires complete removal before the repairs can begin. In addition, if there is damage to the conformal coating or it is of poor quality, it is necessary to strip the PCB of the coating entirely, before reapplying a new coating.
A PCB must undergo several processes for a complete removal of the conformal coating. Stripping a populated circuit board of conformal coating always involves some risk, and Xekera takes utmost care with mild chemicals to clean the board without damage.
While stripping and removing conformal coatings, Xekera strives to maintain the specifications of the PCB. We always discuss our methods with the customers before attempting to strip the board.
We have Whitepapers that give more information about our conformal coating services. As an industry leader in conformal coatings, Xekera whitepapers are a source of knowledge for knowing more about conformal coatings, their applications, and how they enhance project specifications.
At Xekera, we offer wide ranging services for all types of PCB protection services, including a variety of conformal coatings, potting, and encapsulation. Our testing and laboratory facilities help in identifying defects, and we also help in removing and stripping old and damaged conformal coatings from PCBs.