For your application any of the acrylics or silicone conformal coatings will work just fine. Make sure you cover all electrical connectors/contacts (like gold plated edge/finger contacts).
Typically you need to ensure the board is dry too. This is commonly done with a low temp (100 deg C) sit in the oven for a few hours.
Typically you need to ensure the board is dry too. This is commonly done with a low temp (100 deg C) sit in the oven for a few hours.
