Therefore, it is crucial to choose the appropriate type of coating conformal material, otherwise, incompatibility between the coating and PCB components will lead to malfunctions. When selecting these materials, consideration should be given to the operating environment and chemical corrosion on the PCB surface to prevent reactions that may cause functional issues.
Potential issues with the application
Therefore, the main problems encountered when using conformal coated PCBs include dehumidification and cracking. In addition, if the coating is too thick, it may also crack, and if the curing speed is slow, the same problem may occur.
Due to dehumidification, some uneven areas of the printed circuit board may be exposed. The surface roughness of the coating, also known as the 'orange peel effect', will definitely affect the aesthetics and performance of the coating.
The importance of thickness and uniformity
The correct thickness and uniformity of PCB conformal coating are crucial for ensuring proper protection. Uneven coating may lead to poor areas, causing problems with insulation and moisture-proof layers. These PCB conformal coating services should be strictly controlled to achieve perfect results.
PCB qualified coating inspection
We use ultraviolet rays and microscopes to inspect the coating effect on PCBs. We use ultraviolet radiation to help determine how well the coating covers and whether there are inconsistencies or gaps.
We use microscopes to detect microscopic defects related to the proper functioning of denser components, such as bubbles or thin spots.
Considerations for lifespan and durability
The durability of conformal coated PCB components depends on their operating environment and application quality.
We will provide regular maintenance and professional repair services when necessary. The coatings and application technologies we choose are tailored to ensure that they do not withstand certain environmental pressures, thereby maintaining sustained performance and reliability.
Precautions for repairing conformal coatings
Conformal coating PCB repair involves selectively removing damaged areas using solvents or mechanical methods, followed by thorough cleaning. Repainting should be accurate and not damage the protective integrity of the PCB.
Your trusted partner and one-stop supplier for FPC/PCB manufacturing, component procurement, FPC/PCB assembly, and electronic manufacturing. With over 16 years of experience, we have been providing high-quality FPC/PCB at competitive prices to over 1000 customers worldwide. Our company has passed ISO9001:2015 certification and UL certification, and all of our products have undergone 100% electronic testing and passed AOI and X-RAY inspections to meet the highest industry standards. Therefore, please obtain an immediate quote from our sales team as we will handle the remaining matters.
Haibo is an expert in the field of FPC/PCB manufacturing and surface mount assembly in China. Since our establishment in 2017, we have been providing high-quality PCBs to over 1000 customers worldwide. Our factory has passed ISO14001, ISO9001:2015, TS16949, and ISO13485:2016 certifications. We are one of the most trusted small and medium-sized FPC/PCB manufacturers in China.
