Abstract: A stamped product for permanently obturating holes, especially in metal sheets or plastic parts of automobile bodies, having an at least partly single-sidedly self-adhesively treated base layer comprising a heat-resistant backing whose area is greater than the area of the hole to be obturated and which is provided, in particular centrally, on the adhesively treated side with a first section of a heat-activable adhesive sheet whose area is greater than the area of the hole to be obturated and less than the area of the base layer, the stamped product being applied over the hole to be obturated, in such a way that the hole is substantially covered by the first section.

Abstract: Stamped product intended particularly for permanently obturating holes, especially in metal sheets or in plastic parts, having an at least partly single-sidedly self-adhesively treated base layer comprising a heat-resistant backing, the base layer being shaped so as to extend at least sectionally beyond the outer margin of the hole that is to be obturated, and the base layer being provided on the adhesively treated side with a block of a heat-activable foamable material whose area is greater than the area of the hole to be obturated and preferably less than the area of the base layer, the stamped product being applied over the hole to be obturated, in such a way that the hole is completely covered by the stamped product.

Abstract: The invention relates to a method for permanently obturating holes, especially in metal sheets or plastic parts of automobile bodies. The inventive method is characterized by using a punched article which is at least partially provided on one side with an adhesive material and includes an especially textile support whose surface is greater than the surface of the hole to be obturated and which is especially provided with a non-expanded expandable body in the center of the adhesive side. The punched article is fixed on the hole together with the support in such a manner that the hole is completely covered by the punched article and the expandable body comes to rest inside the hole. The punched article and the expandable body are heated to such an extent that the expandable body expands, heat is supplied until the expanded expandable body completely fills and/or covers the hole, and the expanded expandable body cools off and cures.

Abstract: Use of a single-sided self-adhesive tape as a venting tape where the adhesive tape is adhered across an aperture in a closed space which has a higher air pressure than the surrounding space, especially in connection with the foam-in-place filling of the sidewalls of white goods such as refrigerators, where the single-sided self-adhesive tape has a backing to one side of which a hotmelt adhesive has been applied, and has an air permeability on the backing side of more than 30 cm3/(cm2*s), the adhesive tape is perforated with hot needles, preferably located on a needle roll, the number of holes is at least 5/cm2.