Hi

   We need found out a way to keep the board working in a underwater
environment, there is possibilities of occasional flood inside the box
enclosure and the board has to survive, the water came from rain.
   Folks from automotive world " under hood applications" have this
experience since cars are subject to flood also.

  What kind of material is used ? What recommended thickness ?

   We are thinking about RTV Elastomeric Conformal Coating.
   It is not necessary to say that the solution should be not expensive and
effective.

Thanks
Jorge Santana

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