Method and device for determining the elongation and/or compression of a profiled sealing element

A method for determining at least one of an elongation and a compression of a self-adhesive sealing profile applied to a body comprising the steps:

• pulling the sealing profile from a storage and conveying the sealing profile in a conveying direction along a transport path by a drive system toward an application roller;
• applying the sealing profile by the application roller to the body along an application distance;
• peeling off a protective strip from an adhesive surface of the self-adhesive sealing profile, before the step of applying, in a section of the transport path between the drive system and the application roller;
• and
• measuring a length of the sealing profile pulled from the storage by a measurement pick-up comprising a measuring roller, which rolls without slip along the sealing profile in a section of the transport path located upstream of the drive system, relative to the conveying direction.