Just behind the front top edge of my 04 class c minnie is a joint on the roof. It is a crease that goes all the way across. Since it is sort of a indented crease ( joint) I am thinking to continue usi...
Winnebago recommends a Polyether sealant such as Manus 75-AM . It has better adhesion and more importantly, better flexibility for the front cap junction than self leveling types. I re-did mine with it .... and when dry I installed 4" Eternabond on top of the seam. I doubt I will ever have to address that seam seal again.
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