Sometimes the normal routine that you use to clean your car isn't good enough. If you've ever had the misfortune of having calcium buildup on your car then you know this all too well. Most of the time this happens when a car is parked underneath something that is leaking water with high mineral contents (hard water). This Sometimes the normal routine that you use to clean your car isn't good enough. If you've ever had the misfortune of having calcium buildup on your car then you know this all too well. Most of the time this happens when a car is parked underneath something that is leaking water with high mineral contents (hard water). This