Conformal Coating
By definition, conformal coating is a protective material applied in thin layers to electronic circuits and to electronic components to protect them from environmental and mechanical impacts. Conformal coating contours the underlying circuit and provides an insulating barrier that protects it against moisture, dust, aggressive chemicals, and temperature variations.
Where Conformal Coating Is Used
Conformal coating is extremely important in industries where there is important reliability for the smooth operation of electronic components:
- Automotive: Conformal coating is used for protecting the electronic control units (ECUs) and sensors within vehicles against extreme conditions like high temperatures, humidity, and aggressive chemicals.
- Aerospace: Conformal coatings are vital to ensure the functionality of navigation systems, avionics, and communication systems under extreme environmental stresses.
- Medical: Conformal coatings are used for protecting devices like pacemakers and other different diagnostic equipment to ensure consistent performance and patient safety.
- Consumer Electronics: Conformal coatings safeguard smartphones, tablets, and many other electronic devices from accidental water spillage.
- Lighting: Conformal coatings help expand the life span of LED lights by protecting the sensitive components from external factors.
- Battery: Conformal Coatings enhance the durability of battery management systems in electric vehicles (EVs) and in renewable energy systems.
Importance of Conformal Coating
Nowadays, electronic devices are increasingly in demand and the conditions that they are subject to are getting harsher and harsher every day. Without proper and useful protection, the circuits in the electronic devices are prone to failure due to corrosion, short-circuiting, and/or physical damage. That’s why conformal coating is vital to ensure the longevity of electronic devices.
- Extended Lifespan: Preventing wear & tear and degradation increases the lifespan of electronic devices.
- Enhanced Reliability: Minimizing the risk of failure increases the reliability of electronic devices.
- Cost Efficiency: Reducing the need for constant repair decreases the overall cost of electronic devices.
Selecting the Correct Conformal Coating
When selecting the correct material for the conformal coating there are several key points to consider:
- Environmental Resistance: Environmental conditions are an important factor in selecting the correct product for the coating. Levels of moisture, existence of chemicals and changes in temperature are some of the environmental conditions.
- Electrical Properties: Dielectric strength and insulation properties of the products are vital for an efficient coating application.
- Application Method: Different application processes can be used to apply conformal coating (spray, brush, dipping etc.).
- Flexibility: Certain applications that involve vibration or thermal cycling might require flexibility.
- Rework & Repair: The need for rework is an important factor in selecting the correct coating product.
There are several types of conformal coating products:
- Acrylic Coatings: Acrylic coatings are easy to apply and most of them offer adequate removability, protection against moisture and contaminants.
- Silicone Coatings: Silicone coatings are ideal for high-temperature environments, providing flexibility.
- Epoxy Coatings: Epoxy coatings provide a rigid and durable layer for high-stress environments.
Adhetron Solution
A wide range of conformal coatings tailored to meet your specific requirements are available within Adhetron product portfolio. Do not hesitate to contact us with your requirements, and we will do our best to find the best solution that meets your needs.