Quote:
Originally Posted by stiks471
Wow, thanks for that great info. Yes, I would happily read the write up. I can confirm what you have written. I spent quite a few hours removing the Dicor, and cleaning, saw the silicone which I thought was a gasket. I wound up pulling the silicone bead because it was not sticking at all. Covered in dust, dirt, debris, which I assumed was a bad install at the factory. And I can confirm a rusted screw laying on the roof under the skirt which I didn’t think anything of until just now. And some rust in the clear silicone bead.
I tried butyl tape thinking it would hold the skirt down. I was halfway done sealing the skirt with dicor when I realized it raised back up. Unfortunately, I need it water tight this weekend so will put lots of dicor on and tackle the project once all the parts are here.
I thought about using 3M 4200 marine sealant to hold the skirt down but it definitely needs an instant bond.
I’ll reach out to Adam.
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If you are looking for an "instant bond" neither of those products is suitable. I think that 3M 4200 bonds faster but still takes several days.
To avoid having a real mess to deal with when you decide to do the final repair, I'd suggest stuffing the gap with a putty and or eternabond tape. Eternabond can be removed with a heat gun.
If you are going to be towing the trailer, almost any caulking will pull lose if it is not fully cured. That A/C unit bounces around quite a bit on the roof as the roof flexes.