My studio pole mats are twin mats held together on one end by stitches and the other end made attachable & detachable by velcro.
Some irresponsible soul ripped the stitches apart and left it in 2 separate pieces for me to discover the next day. Clever semomy suggested that instead of trying to stitch through non pourous PVC material, that i should just buy velcro with adhesive backing to just hold the 2 pieces together.
"Helper" assisted to paste velcro....So tell me, do you paste it on the ripped stitched end or the originally velcro-ed side?
sorry i think only pole people will understand else you need to imagine graphically.