so i was driving on the freeway and it is raining like crazy, i kick the wipers on high and skreeeeeeech! my driver side wiper blade starts doing carwheels on my window and the metal peice that holds it on starts scratching my windshield and hyper speed !!!! so now i have a groove in my windsheild... is there any way to fill it so it disapears or do i need to replace it?

 

bump

 

If you can feel the scratch with your fingernail, it is gone. If it cannot be detected with your fingernail it may be polished out.