Apr 21, 2016 - 06:01 AM
If I can make a suggestion, I would look at the Eternabond tape in place of LAP. It is a much more permanent sealer, with proper installation giving you 10 years + leak free repair/sealed joint. Many times you can go over the LAP if you cannot remove it as long as the eternabond covers over the the LAP and has room to bond on either side of the joint. Usually the 4" wide tape will do this --> https://www.rvupgradestore.com/Eterna...
The key with Eternabond is that is must be rolled or rubbed thoroughly to activate the bonding material which makes the permanent bond to the surface.