NANO COMPOSITION- SIO2 infused invisible protective coating creates a clear quartz-like ultra thin layer on your windshield that helps repel rain, mud, snow, bug splatters. VERY EASY TO USE- Extremely easy to apply and leaves no smudges or greasy residues behind. Buff with the same cloth you apply it with, no need to wait. A LITTLE PRODUCT GOES A LONG WAY- 1 unit of a completely invisible and long-lasting rain repellent coating for an entire windshield for up to 6 months. INCREASES VISIBILITY & SAFETY- Drastically improves driver's visibility during rainy days, making it safer to drive in inclement weather. TOP-NOTCH QUALITY PRODUCTS- At Nanotech Surface Solutions we stand behind our product’s quality and if you’re not satisfied with the product for any reason, let us know and we’ll make it right. Our products leave all surfaces protected from the elements for multiple months considerably extending cleaning and maintenance cycles. At Nanotech Surface Solutions, we are aware of the dangers rain poses to drivers each time it happens, which is why we offer an SiO2-based, invisible, and long-lasting protective coating for windshields: Rain Shield. A single application lasts up to six months, making it extremely convenient for DIY enthusiasts to apply it themselves and start enjoying the benefits of increased visibility during rainy days immediately. Rain Shield is very affordable and easy to apply, why? It's simple, we don't believe drivers should be risking their safety at any time. Rain Shield is a long-lasting, SiO2-based protective coating that creates water repellent properties on windshields, rear windows and side windows, which increase visibility and safety during rainy days. Rain Shield helps remove sleet and snow and also makes it easier to clean bug splatters and bird droppings. It makes rain drops slide off when driving over 40 mph without having to turn the windshield wipers on. Even though this coating provides exceptional rain repellent properties, windshield wipers should still be used as frequently as necessary. Each 0.33 ounce sprayer bottle has enough product to coat a sedan, pick-up truck, or SUV's entire windshield for up to 6 months.