Removing Calcium Deposits on Glass
I've had this C7 for a year and it has already accumulated a lot of calcium deposits on the glass. I have not found any glass cleaners that can remove the calcium deposits. What does work is 0000 steel wool and Rain-X glass cleaner.
0000 steel wool, Rain-X glass cleaner, and microfiber cloths are used to remove the calcium deposits.
Rain-X is sprayed on the glass to act as a lubicant, and then the glass is rubbed down with 0000 steel wool. A microfiber cloth is used to wipe of the residue. Another microfiber is used with a little Rain-X glass cleaner to clean off any additional residue.
Before and after photos.
Once all the glass is clean, I then use Rain-X polymer to seal the glass and create a protective barrier