1 ptfe black result

Problem with rigid-flex PCB pressing (PVC and PET damage)

Electronics Forum | Sat Oct 18 11:01:04 EDT 2014 | leadthree

I just like to ask if somebody else experienced a similar problem: We press rigid flex PCBs at 356°F (180°C). The buffer layer construction is: Plate PET PVC PET PCB etc So far there were never any problems. But suddenly the PVC becomes very blac