Window Seal Replacement

I need to replace the outer window (port) seals on my 1977/78 Ericson 29. According to the Owner's Manual a foam tape is to be used. In looking at some of the past postings people have had difficulty with ports that have been sealed with a silicon type caulking. Does anyone have any experience with the original tape method? What tape did you use?

Closed cell tape such as that sold at Home Depot has been used successfully by others for the same task.
I caution against using polyurethane (4200) or polyurethane/silicon by itself, as the fitting between the frame and boat is not fine enough, and they tend to start leaking again when the bond breaks within a few months.

leaky port repair

I used closed cell foam tape to fix leaky ports, and it works great. The idea is to gasket the port to the boat and not to try to glue or calk it. This lets the port float on the cabin house and still stay sealed. The probelm with calk is that it looses it seal as the boat flexes from sailing or temperature changes.

Try it, you'll like it.