Don't confuse 3M super weatherstrip adheasive with super glue. The 3M stuff is more a like silicone rubber/caulk in consistancy. It stays somewhat flexible but is far stronger than silicone. It also has some body to it and can fill gaps between the materials you are bonding. It sticks very well making it far harder to remove from a surface than silicone rubber/caulk, an advantage where you want permanence.
Super glue doesn't fill gaps well and its instant drying can be a disadvantage in some applications. Super glue's best application is probably the original, Viet Nam battlefield sutures.
Super glue has some advantages, but I cannot think of an application in a trailer. Maybe others can.