Capt.Bill11
Guru
Yes, but using Rain-X or one of the newer better glass treatments makes your glass much easier to keep clean and stops the formation of mineral spots and etching. Which may not be a big issue in the PNW but is in a lot of other boating areas. So it is not a waste of time.
And Rain-X at least lasts 1-2 months. The newer glass treatments last much, much longer. Especially if you properly polish out your windows before applying them.
And Rain-X at least lasts 1-2 months. The newer glass treatments last much, much longer. Especially if you properly polish out your windows before applying them.