The future points to automobile bodies being a mix of dissimilar materials, including aluminum, steel, and carbon fiber reinforced polymer.
When you need a seal that cannot be achieved with pressure sensitive tape, heat seal adhesive tapes may be the answer. Heat seal adhesive tapes can adhere to almost any substrate and consist of a thermoplastic film that is heat activated.
It’s important that you have a clean surface for a strong bond. Dust, residue, and other contaminates will create an unstable barrier between the bonded surfaces.