The underlays for our heat sealing bands are adapted to the requirements of each individual application. Both flexible silicone underlays with various Shore hardnesses and non-flexible underlays are available. In addition to ensuring electrical and thermal insulation, underlays also compensate mechanical and closing tolerances, so that a homogeneous contact force is easier to achieve.
Hard, non-flexible underlays are ideal for cut-and-seal applications.

Available downloads: Documentation, software