Cleaning tough calcium deposits from windows?

[Mike408]

I recently bought my civic from a neighbour down the street. The car was never used for about 6 months. During those 6 months parked next to the lawn, the windows got sprayed with the sprinkler system every morning. Now I am left with these really tough calcium deposits that are really annoying me. I tried applying CLR and White Vinegar to the windows, but it didn't help too much. Any suggestions?

 

[R3dline]

clay bar will sometimes get it off

 

[evilrilla2]

clay bar will sometimes get it off

i will try this too , on my rims

 

[JGvtec]

Steel wool. Its light enough that it won't scratch the windows.

 

[Mike408]

Steel wool. Its light enough that it won't scratch the windows.

0000 grade steel wool.
http://www.youtube.com/watch?v=Y3wDuHzJfPg

I'm doing my own research here

Cirium Oxide looks like the way to go.

 

[J Z06]

I'd never tried it, but a few have suggested toothpaste, believe it or not.

 

[r03ld4v1d]

have you tried any rubbing compound?

 

[r03ld4v1d]

or rain-x cleaner

 

[Mike408]

or rain-x cleaner

Yeah Started with CLR, went to white vinegar, finished with invisible glass and rain x