Diecut, in particular for permanently closing holes

A diecut configured for permanent closing of at least one hole, the diecut comprising:

• a carrier comprising an assembly of at least two polymeric films,
• wherein
• the at least two polymeric films comprise an upper film and a lower film, the upper film having a basis weight of at least 1.0 kg/m2 and the lower film consisting of at least two layers,
• the at least two layers of the lower film have a first layer in the form of a polymeric film facing the upper film and a second layer in the form of a functional layer,
• a side of the lower film facing away from the upper film has an applied adhesive composition
• the functional layer has a first barrier effect with respect to first migratable substances that are diffusible into the applied adhesive composition and a second barrier effect with respect to second migratable substances that are diffusible into the upper film,
• the first migratable substances comprise one or more oils, one or more lubricants, and one or more plasticizers,
• the second migratable substances comprise one or more tackifier resins, and
• a melting point of a polymer of the functional layer is above a melting point of a polymer of the upper film by 20° C.