When I went down and got my new w/s I asked the guy for the tape kit and he told me nobody uses that any more. He sold me a 3M primer that you brush on first(tape off the inside edge of the primer line for a nice straight line)then a couple of tubes of caulking type sealer to make the bed. Don't forget the rubber spacers tho because the glass will continue to sink until the stuff sets up. The last one I did was with the tape but that was a long time ago. It was actually easier I thought. Good luck either way. PS When you go to put the trim back on around the glass be careful not to chip the paint on the edge of the opening because it will start the rust process all over again. Ask me how I know.