Windshield seam sealer? What to use.

RustyRatRod said
Lord Fusor is about the best seam sealer there is. It's flowable and gets into the little cracks really well. It ain't cheap, but it's very good.

Thanks, I will have to look that up. Wanted something that would not trap water long term. Car won't see much rain, and doesn't seem to leak now, but better safe than sorry, especially with knowing rust can hide anywhere