When we conformally coat a PCB, we have to pay attention to some details before we can operate this process on it.

Compatibility Issues

Choosing the right type of coating conformal material is crucial, otherwise, the coating is incompatible with the PCB components and will cause failure. When selecting these materials, the operating environment and chemical attack on the PCB surface should be considered to prevent reactions that may cause poor functionality.

Potential Application Issues

The main problems encountered when using conformally coated PCBs include dewetting and cracking. In addition, if the coating is too thick, cracking may also occur, and the same problem will occur if the curing speed is slow.

Due to dewetting, uneven parts of certain areas of the printed circuit board will be exposed. The surface roughness of the coating, which is known as the "orange peel effect", will definitely affect the aesthetics and performance of the coating.

Importance of Thickness and Uniformity

The correct thickness and uniformity of PCB conformal coating are essential to ensure proper protection. Uneven coating can cause undesirable areas, causing insulation and moisture barrier problems. PCB conformal coating services should strictly control these to obtain perfect results.

PCB Qualified Coating Inspection

We use UV light and microscopy to inspect the coating effect on PCBs. We use UV light to help determine how well the coating covers and if there are inconsistencies or gaps.

We use microscopy to detect microscopic defects such as bubbles or thin spots that are associated with making denser components work properly.

Life and Durability Considerations

The durability of conformally coated PCB components depends on the environment in which they operate and the quality of the application.

We provide regular maintenance and provide professional repair services when necessary. The coatings and application techniques we select are tailored to ensure that they will not withstand certain environmental stresses to maintain continued performance and reliability.

Conformal Coating Repair Considerations

Conformal coated PCB repair involves selective removal of damaged areas using solvents or mechanical methods, followed by thorough cleaning. Reapplication should be accurate and should not damage the protective integrity of the PCB.

Why Choose Us as Your Conformal Coating Service Provider

PCBAMake provides PCB conformal coating as part of PCB assembly services. The following features of our services are highly praised by our customers.
We offer customizable, case-specific variations to ensure conformal coating compatibility with your application requirements, from prototype to high volume.
Our quality control, engineering, production and customer service teams work closely with you to provide the product that best meets your needs.
We provide our customers with the most in-depth engineering services, including guidance on product conformal coating compatibility during the design and development phases.
Feel free to contact us to discuss your PCB conformal coating requirements. Our experts are happy to assist you in selecting the right conformal coating material for your PCB.