For an initial seal repair as long as the original seal is solidly attached, I tend to prefer to glue the seal to the base of the old latex seal trimmed back even with the start of the suit material. It is then a known latex to latex bond and you do not have to wonder what was used originally or how to remove the old seal. It is also not built up to the point of being problematic. Once you get to the second replacement remove the second seal and then go from there.