Chances are it is only a cosmetic issue. In most cases the real seal is below the surface, where the pieces are joined.
If you are going to tackle it warming the old caulk should help. Cutting out the old with a sharp knife and or a chisel works well. Slow and steady, it will take a while to do without damaging finishes.
Whatever you use avoid something that does not skin over quickly. The prior owner used something that remained tacky and it picked up a lot of dirt.
Originally Posted by jamesp
I was going over my trailer after returning home from our latest trip. I moticed cracked caulking several places on the corner trim pieces that run down the front and back of the trailer. I also noticed cracked caulk around the fender skirts. I think I want to attemp to remove the cracked areas and recaulk. Any suggestions on removing the caulk? Is standard window and door silicon acceptable for the repair?
While on the roof, I noticed lots of cracks in the Dicor. I guess I will go get a couple of tubes to get me to spring and then Eternabond tape the roof. The unit is a 2008 and I don't see applying Dicor every few years instead of long term repair with the tape.