Electronics are part of everyday life, and reliable device operation depends in part on the manufacturing quality of their printed circuit boards (PCBs). This article examines two processes that support board durability and performance: cleaning and conformal coating. When should you consider outsourcing them?
PCBA cleaning: preparing a clean surface
Cleaning PCB assemblies is about more than appearance. It helps control contamination that could affect electronic circuits.
Assembly can leave contaminants such as soldering residues or dust on a board. Depending on their properties and the operating environment, these can affect electrical performance and contribute to failures. An appropriate cleaning process removes residues and supports reliable operation.
PCBA conformal coating: environmental protection
PCB conformal coating adds a thin protective layer to the assembly. A suitable material helps protect against moisture and corrosion; resistance to UV exposure depends on the chosen coating.
The protection must suit the application. Coating can offer limited surface protection, but it does not replace the mechanical protection provided by an enclosure.
Why consider PCB cleaning and conformal coating?
- Stable operation: Removing harmful residues helps support stable circuit operation, particularly in demanding electronic devices.
- Service life: A suitable coating limits exposure to environmental conditions that could otherwise shorten the life of the assembly.
- Corrosion protection: Protection against corrosion is particularly relevant when a device operates in a harsh environment.
- Appearance: Cleaning and coating can improve the appearance of boards, which may matter when they remain visible rather than being enclosed.
PCB cleaning and coating at Techbit
Techbit provides electronics manufacturing, PCB cleaning and conformal coating services.
The process and schedule are agreed around the boards, materials and operating requirements of your project.
How do we clean and coat PCBs?
PCBA cleaning includes:
- Flux and paste residue removal: we use a conventional cleaning process to remove heavier assembly contamination, including dust, particles, flux and solder-paste residues.
- Double-sided spray cleaning: spray cleaning treats both sides of the board to remove contamination created during soldering.
- Deionised water is used as part of an appropriate cleaning process. Cleaning chemistry and compatibility must be selected for the board and its components.
The PCB coating process includes:
- Board preparation: before coating, we clean the boards to prepare the surface for the protective material.
- Coating material selection is based on your requirements and the environment in which the device will operate.
- Selective coating allows material to be applied only to specified areas of the board, in accordance with the project documentation.
Follow the link to discuss PCB conformal coating
Why use our services?
We clean and protect PCB assemblies to support their reliability and service life in the agreed operating environment.
The turnaround time is confirmed after reviewing the boards and the scope of work.
Support durability and reliability with Techbit
PCB cleaning and conformal coating are important manufacturing steps that can affect the quality and durability of electronic devices. Choosing a suitable process and protection system helps align the finished assembly with its intended use.
Would you like to arrange PCB cleaning and coating?
Or discuss a broader electronics manufacturing project?
Arrange a no-obligation PCB manufacturability consultation