Originally Posted by mimiandrews
Here are the photos Andy asked me to post of the area where we found the water leak. Hope I got the right shots.
The leak damage is just inside the lower left (street side) corner of the rear hatch. Replacing the seal around the hatch is the first thing we did, and that didn't stop the leak.
What is the proper sealant for stopping this leak? I've used silicone caulk, but have picked up some stuff on the forums that indicate this might not be correct.
It appears that your Airstream may have rear end separation on the left side. That would let water get to the bottom of the floor.
Silicone sealer is "NEVER" correct for the exterior.
You need to remove it "completely," making that area "chemically clean" so that Par-bond or Vulkem will adhere.
You cannot install any sealer over silicone sealer until you remove "ALL" traces of it, even chemically.