I dunno. I got some pcbs shipped to me with this black foam that was very rigid.
Another solution could be to find the post you cut and glue it back in minus the amount needed to support the PCB. Though I would pad between the pcb and the post.
Another solution could be to find the post you cut and glue it back in minus the amount needed to support the PCB. Though I would pad between the pcb and the post.