Getting water marks off glass?

When my mirrors had water spots I used a rubbing compound and polished them a little bit, it worked amazing and made them look brand new. I'm sure this worked because on (camaros atleast) the silvering is on the outside of the mirror, so I polished the silvering and not the glass.
I tried this on a really small spot of my window and it had no effect, so I'm still looking for a solution. I had someone tell me to wax them, but that just seems like a weird thing to do so I thought I'd ask for opinions first.
Thanks
i used a hard surface protectant on the glass, it makes the water bead off of the surfaces drasticly, its pretty cool, after i put it on i poured a glass of water on my windshield and it ALL drained off
Just follow the instructions, if the spots are real bad you will have to do it a couple times, but its good sh#t.
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edit: dont use a razor blade on glass. If there is anything wrong with the blade it will scratch the glass. The glass will be curved so to get a good contact patch you will have to have dangerous amount of pressure. Not saying that it doesnt work well, just not the best solution.
Is there a rule of thumb when rubbing (such as when applying wax)? Can I rub in circles or is it only up down/left-right on glass as well?
Thanks.
Is there a rule of thumb when rubbing (such as when applying wax)? Can I rub in circles or is it only up down/left-right on glass as well?
Thanks.
Let us know how you resolve it either way, good luck
I'm going to go get #00 tonight and I hope that gets the rest off faster, my arm would die if i had to do 2 windows+windshield with 0000 and rubbing compound.






