I just had a long conversation with a product specialist at 3M. I explained to her exactly what I was looking to use the product for. She provided me with a part number of a product called Dual Lock. Its like hook and loom (Velcro) but better. And the adhesive on this product is incredible. She is sending me some samples to try in the field.

Dual Lock™ Reclosable Fastener SJ3550
[Link: 3m.com]