The Ford reference books just call it "Sealer Tape" and for example for rear seat belt mounts they call our 2 in x 2 in size. It cant be cloth tape or black duct tape. Just trying to get some idea what it is. Could it be like pliable "tar" squares. Could Ford have changed over to using black chalking? Originally years ago i didnt notice a flat square sealer tape...I thought I saw chalking on my car.
Thanks for responding.