Wiper Haze - Any old wive's tricks?

[davepl]

This isn't really specific to my truck but more specific to the Seattle area I drive it in, where we use wipers 6 months out of the year.

Over time windshields seem to accumulate some kind of film or wear that causes a haze in the moments after the wiper wipes the glass. It fades away over the seconds that follow.

It's almost non-existent in the area where both wipers overlap, whether from better cleaning or a "polishing" effect of having both wipers wipe that area.

Sometimes new wipers improve it, if you wipers were worn, but not always.

Does anyone know (a) what causes it, and (b) how to fix it?

There are as many ways to clean glass as there are humans (newspaper and vinegar is always popular), but I don't know that just additional cleaning is needed.

I once used a fine-cut cleaner and an orbital buffer and that got rid of it, but that's overkill. I might have waxed the window for all I know, maybe that's the fix!

- Dave