Show us a pic of the side that fits to your DA.
NICK
Abralon pads I generally use without an interface pad but you can use one if you want more conformability.
The bit you show in your picture is the abrasive side...the red side with the writing will stick to a standard "hook" backing pad.
It's the abranet discs that need the "special" interface pad...they call it the "pad saver" and it's basically just a really thin interface pad with smaller hooks so they don't poke through the mesh.
You bought those abralons from the dude on eBay that does singles didn't you?