I'm looking to build a sensor using a flex PCB.
The size is around 75mm x 300mm (3" x 12") plus a tail.
I see plenty of options for polyimide, but it's thin and expensive.
I was looking for more the crappy stuff that they make PC keyboards out of.
That's tough, thick, translucent with tinned tracks and carbon globs. I don't need any carbon globs.
This is so low tech that if I had the single sided material I could tape out the design myself, although obviously I'd prefer somebody to knock me out a half dozen.
Does anybody have any leads on this, or even what it's called?