The tape will be adhered to the grommet-like components?
Among common plastics, nylon has excellent bonding characteristics partly because it has high surface energy. Polycarbonate, acrylic (typically polymethylmethacrylate), and epoxies also bond well. Here is a table of solid surface energy values for a variety of plastics (in general, higher values correspond to better bonding; nylon is "Polyamide"):
Among structural plastics, it's hard to beat nylon's bonding properties.