profdant139 wrote:
He said that he often uses putty to reinstall RV windows and said it is easier than butyl tape.
Is that _exactly_ what he said? Because, it sounds more like he's using "butyl" to refer to the very sticky and hard to remove butyl caulk, not butyl tape which removes about the same as plumber's putty. Being a window guy, he may not be familiar with the difference between butyl caulk and butyl tape.
I wouldn't use plumber's putty for sealing an exterior window - over time it dries out more than good quality butyl tape.
