Removing salt stains from glass windows

My windows have some deep salt stains that I can’t seem to get out with any normal product. They aren’t etched that I can tell, but they are stubborn streaks.

I reached out to diamond seaglaze and they recommended Glasweld Pro Clean to remove the stains. I ordered some and will report back with the results…

Tried pro clear today for half hour with multiple applications. It’s marginally better but still salt streaks present. Maybe I need to power buff vs hand buff the stuff on. So I’d say it’s a bust at this stage. On the plus side it smells really good.

Follow up …. Friend also tried this but used a power scrubber (https://a.co/d/1jFoksp) with much better results. Said was a big improvement - before and after below::

Do you always run with those gas cans? Window looks much better!

Picture is the boat.us safeboat from FH