It is very important that our electronic devices, which have become an indispensable part of our lives due to the convenience they provide, do not fail in a short time or in unexpected situations. For this reason, electronic cards are protected from high or low temperatures, humidity, dust, vibration, etc., which cause malfunctions in a short time. must be protected from the elements. Surface protective coating (conformal coating) are transparent protective coatings for electronic cards and circuits. This coating protects the card and the circuit elements on it against humidity, dust and corrosive environments. Extends the working life of cards.