You can protect your glass with a few different products, depends on how long you want your protection to last. We use two different types of glass protection, Rain-x and Glassparency. We use Rain-x when you only need short term protection from the elements. It's very easy to apply. Takes up 10 minutes to apply to an entire 4 door sedan. The protection lasts about 60-90 days. Then we have Glassparency which is more long term. It last up to 2-3 years with yearly maintenance. Also easy to apply. Usually takes 25-30 minutes to apply on a 4 door sedan. Depends on what the customer needs and wants. These both provide safety from the elements. Also can be used on industrial vehicles,motorcycles,recreational vehicles etc.