or GFS, Green Fuzzy Shit..Proper name is 'conformal coating'...............
Essential Guide to Conformal Coating
Conformal coating improves PCB reliability, providing increased dielectric resistance, operational integrity, and protection from corrosive atmospheres, humidity, heat, fungus, and airborne contamination such as dirt and dust. Conformal coating are a special polymeric film forming product that...www.techspray.com
When I worked in the military electronics industry many, many years ago it was a spray on application and likely much the same today. Some was epoxy based depending on the degree of protection required.
I thought he was talking about this. https://en.wikipedia.org/wiki/Solder_maskProper name is 'conformal coating'...............
Essential Guide to Conformal Coating
Conformal coating improves PCB reliability, providing increased dielectric resistance, operational integrity, and protection from corrosive atmospheres, humidity, heat, fungus, and airborne contamination such as dirt and dust. Conformal coating are a special polymeric film forming product that...www.techspray.com
When I worked in the military electronics industry many, many years ago it was a spray on application and likely much the same today. Some was epoxy based depending on the degree of protection required.