Cactus® K2970 Double-Coated PET Tape with Differential Adhesion – 0.5 mil polyester (PET) film coated on both sides with pressure-sensitive acrylic adhesive offering two levels of adhesion. The ‘open’ side has higher adhesion to provide good initial tack allowing immediate/permanent bond to a variety of surfaces (including irregular and porous surfaces). The lower adhesion of the ‘closed’ side provides repositionability and removal from many surfaces.