Conformal coating is a protective chemical coating that conforms to the circuit board topology. Conformal coating helps in protecting electronic circuits from harsh environments that may contain moisture and chemical contaminants. Being electrically insulating, it maintains long-term surface insulation resistance levels and ensures the operational integrity of the assembly.

Some are the application use conformal coating include high-reliability defense, automotive and aerospace, where the coating is used to protect against various combinations of moisture, salt sprays, aggressive chemicals and vapours, large temperature variations, mechanical vibrations. The conformal coating also means that not only protects, but also serves to enhance product reliability and thereby reduce the potential cost and damaging effects of early field failures.

Four main ways of applying a conformal coating:-

1. Dipping– This is limited to materials that do not cure quickly by moisture, oxidation or light.
2. Selective Robotic Coating– If the Correct dispense head is selected all coating types like Asymtek, PVA or DIMA will be applied.
3. Spraying-All conformal coating can be applied by using hand spray or
4. Brushing-In brush coating requires extremely proficient and skilled operators in order to be suitable for production.

          

Advantages of conformal coatings:-

• Protect the assembly against chemical and corrosive
• Minimize environmental stress on a PCB Assembly.
• Insulating properties allow a reduction in PCB conductor spacing over 70%.
• Helps in eliminating the need for complex, sophisticated enclosures
• Lightweight

Conformal coating exhibits the following characteristics:-

• Protection against thermal and mechanical shock
• Protest against environmental hazards including moisture chemicals and other corrosive elements
• Simple application
• Easy removal, repair, and replacement
• High flexibility

Electronic Potting:-

Electronic potting is a process of filling a complete electronic assembly with a solid or gelatinous compound for resistance to shock and vibration and for the exclusion of moisture and corrosive agents.

In the potting process, an electronic assembly is placed inside a mold which is then filled with an insulating liquid compound that hardens permanently protecting the assembly the mold is part of the finished article and can provide shielding or heat dissipating functions in addition to acting as a mold.

Conformal coatings are a protective, non-conductive dielectric layer that is added to a circuit board or electronic device. The coating conforms to the object being coated allowing protection without significant additions to the weight or thickness of the device.

Argus Systems is a globally recognized Electronic contract Manufacturing company(EMS) supporting PCB Fabrication, PCB Assembly, Cable Assembly, Conformal Coating & Potting, PCBA Stencil fabrication, Box Build, Test fixture, System-Level Assembly, Regulatory compliance Testing and Electronic manufacturing supply chain solutions for Its Global OEM & ODM Clients in GCC Countries India, USA, UK, Germany, France and Australia.

Argus Systems is providing electrical and electronics manufacturing and Engineering services to customers in in the Gulf Cooperation Council (GCC) countries like the United Arab Emirates, Saudi Arabia, Qatar,  Bahrain, Kuwait, Oman, as well as Egypt.