Apparatus and method for measuring adhesion capability in a tire liner, the apparatus including a film strip attaching to the tire liner and having a through opening and an attachment interface distanced from the opening; an adhesive backed cover member attaching to the film strip in covering relationship to the strip opening and a cover member surface portion establishing an adhesive bond with the tire liner through the film strip opening; means attached to the strip attachment interface for exerting a directional peeling force upon the strip sufficient to unitarily peel the film strip and the cover member from the tire liner; and means for measuring the directional peeling force.