I was wondering what is the best for sealing up my truck camper. I have a 1986 Lance 840 / 9.6 truck camper. It sat un-used for many years with no maintenance getting done. If it's a plastic part, it's super brittle. But for now with the rainy season coming I need to seal it up at the seams. I'm looking for any and all advice on what products to use and how to apply them. Thanks so much in advance.
