Rummaging around in a friend's box of old electronic stuff we found an old pre-sensitized positive resist PCB. Its age is around 6-10 years.
there is some visble fading near the edge where light must have gotten into the open package, but the rest of the board is still green.
Is it still viable for UV exposure? or should i wash off the resist and just use it as a plain board?
there is some visble fading near the edge where light must have gotten into the open package, but the rest of the board is still green.
Is it still viable for UV exposure? or should i wash off the resist and just use it as a plain board?