Metal extrusions seem to be gaining popularity across a number of markets. Tension fabric pieces can fit smoothly into the metal framework with ease. However, with the popularity, there has been an influx of many different extrusions each with different opening dimensions, depths, and angles. To address this concern and develop custom solutions a number of insertion materials have been utilized including silicone extrusions, PVC extrusions, keder, surgical tubing, and more. Adding to that arsenal is a product from Velcro called the SC2 High Shear Closure. This adhesive back material works by utilizing fish scale-like features on the face which interlock. This creates a one way lock which is easily slid in, locking in place.
For more information in this material, make sure to check out the Velcro website: http://www.velcro.com/index.php?page=business-products-health-care-single-component-fasteners