[Brannigan]

Hello all,
Our 2019 Mark C was parked in the hot sun with a lawn sprinkler going. Late in the day after the sprinkler was shut off I saw the windshield was covered in hard water streaks/stains. I tried Windex but no luck. I researched 'Invisible Glass' cleaner but turns out it's not able to remove calcium/mineral water stains at all. Any ideas ?

 

[starzplacez]

I would use citric acid powder+hot water solution. Works wonder for kitchen and bathroom. Spray it on and leave it for 5 minutes and wipe off.

 

[DRM]

Or wait for a good natural rain and leave the car out again. Maybe something like this could help In-Line Water Softener & Deionizer With Fittings I do have a couple of cans of Stoners Invisible Glass and it's wonderful.

 

[dr.ronmasters]

I would use a solution of 1/4 cup of white vinegar per 1 cup of water, it will remove the hard water spots. Then rinse the automobile with water.

 

[moon003]

Hello all,
Our 2019 Mark C was parked in the hot sun with a lawn sprinkler going. Late in the day after the sprinkler was shut off I saw the windshield was covered in hard water streaks/stains. I tried Windex but no luck. I researched 'Invisible Glass' cleaner but turns out it's not able to remove calcium/mineral water stains at all. Any ideas ?

I did so. put the car in the shade and prepared a warm solution of water and Fortador Blue Magic treated the car with this product and quickly wiped it with a microfiber towel. There are also folk methods, so to speak, on satya How to remove water spots from car | Water spots removal which tells how to remove water spots from car with vinegar and distilled water, but there you need to read and try.

 

[Brannigan]

Thanks everyone for all the suggestions. Good to know for next time it happens.