Wool pile retainer?

Hi, I figured out that I need 9/32 x 5/16 wool pile for my four sliding glass doors. My question is what will retain, or keep the pile from sliding back out? The problem is the old seals are sliding back out, and then get smashed in the door jam when closing the door. Would you suggest some rubber cement? The pile guide is not metal, but rather a molded plastic of some kind. Attached is a picture of one door. Thanks!