Nanolex WashCoat was one of the first wet maintenance sprays to hit the market back in the day, and, despite increasing competition in recent years, it remains close to the top of the pile in terms of performance. Like its newer rivals, it's designed to be sprayed on to clean, wet surfaces after the hand-washing process, and then rinsed off at high pressure; no wiping or buffing is needed, which makes it super quick and easy to use. And, unlike a lot of traditional maintenance products, Nanolex WashCoat can be used in cool, damp conditions without any issues; as long as it's not freezing cold then it will continue to work normally. This makes it a superb top up product for winter use, when the weather always does its utmost to scupper everyone's detailing plans. In our experience, each application of Nanolex WashCoat has a life expectancy of up to two months on a daily driver, meaning it can be used to temporarily protect bare exterior surfaces too.