We manufacture all of our allergen encasings with a high quality, auto-locking zipper technology that prevents bed bugs from getting into or out of the encasing. Still, some doctors recommend using zipper tape on your mattress and pillow encasings for increased protection from allergens and bed bugs. Our Scotch brand 3M painter's mattress tape comes off easily when you want to wash your encasings, without leaving any sticky residue. This medium-adhesion allergy encasing tape contains no natural rubber latex. The 1-inch wide tape provides full zipper coverage. Available in Blue in a 1" x 60-yard roll.