Repair a Few Tiny Pinholes in Windshield Gasket Channel?

Please don't tell me I have to cut out the sheet metal, can't a little filler of some kind do the job? I was thinking about using some of this two part panel bonding agent I had left over:
https://www.amazon.com/gp/product/B000PEW4MI/?tag=joeychgo-20
I've been considering "All Metal" for a similar issue