Duct tapeâ¤™s strength come from the process of combining its fabric and adhesive materials through a precise layering process. An alternative method is the trademarked, â¤½Durabond Constructionâ¤. This involves the use of a film coated with adhesive pellets, which is then blended with the mesh while still hot. The adhesive is then spread onto the film. This process is said to minimize the chances of delamination.