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* Mechanical damage of electrical assemblies and electrical damage due to electrostatic discharge (ESD) incurred during handling
* Electrical failures due to stresses induced by the coating on solder joints
* One well-known risk regarding conformal coatings is the potential Potential for stresses to be induced by the coating on electronic components during thermal cycling. This is especially true if the coating is very thick (> 5 mils for many coatings) and if there is a significant coefficient of difference in the thermal expansion mismatch between coefficients of the coating and the substrate materials being coated.<ref name = "ref1"/>
== Precautions and Advice ==
*Spray coating is easy, practical and is thus, the most widely used method *Generally, the best protection is obtained by a 2.0 mil thickness (+/-0.5 mil) will give the best protection*Rinse thoroughly with clean isopropyl alcohol or other cleaning solvent <ref>https://www.niccomp.com/resource/files/ceramic/NCD_HV_Guide_0903.pdf</ref>
While there are risks involved in conformal coating electronic assemblies, they can be mitigated. <br \>
We can avoid undue stresses which cause damage to components and assemblies by applying conformal coating of thickness within a recommended range.
Proper handling, electrical grounding, packaging, and transport of assemblies before, during, and after conformal coating will help to prevent mechanical and electrical damage to PCB assemblies. <br \>
Companies providing conformal coating services in India are:
* pcbconformalcoating.net
* conformalcoatinghelp.com
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== References ==