Very good adhesion to aluminum foil and bare aluminum sheet metal inside the cabin. I used it to seal the seams on the inside of my airplane cabin on the floor and on the firewall. I was replacing the old carpet in my old Mooney and some of the original aluminum/cloth tape had come loose. I cleaned the sheet metal with lacquer thinner (sparingly) then alcohol to remove glue, dirt and oil. To promote adhesion I used a roller tool I purchased at Aircraft Spruce, P/N 05-11984. To work the aluminum tape around rivet heads, screw heads, etc., I purchased a clay working tool at a crafts store. It is made of a hardwood and looks like a flat and rounded chop stick, about the length of a pencil.