Julie Anne and I finished sealing the trailer the day before the rains started. It was good timing. I used this sealer ” GE Silicone II Window & Door Clear caulk 9.8 oz”. It was recommended by a RV repair tech, (the person who packed our bearings). After using is I can see why he recommended it. It was really easy to use and it was clear, so it was great to use around all the windows and inlets etc… A good find.