I think its called conformal coating and a real beast to try any repairs, I
inspected them and when the vendor repairs them they really look bad and
unreadble!!!
timba

"aurgathor" wrote in message
news:1102671420.02f831312d3421b0c00ecddb127c8a66@t eranews...
I took apart a UPS, and the PCB, including a significant portion
of the components on it are coated with some kind of clear and
shiny lacquer. This is nice for some things, but now I can't read
the markings on the chips. What kind of cleaner is best to clean
the coating from the chips?

TIA,
aur