It's what we use on helicopter wind shields. But first, know this; it is NOT any good as a cleaner. Lousy in fact. Even plain water works better at removing bugs. It is an excellent polish. You need to clean the surface first with a good cleaner, like Windex, then polish with Plexus. It is also an excellent protectant. It gets rid of those spider web swirls and the obnoxious reflections they cause by filling them in.
It also doesn't last for long and requires continuous refreshing, especially if you use an ammonia-type cleaner like Windex. It is good at repelling dust from being attracted to plastic, which can build up a static charge.