Is Aerospace 303 designed to work on glass? I was in a rush last time I used it and got over-spray on the windscreen and wipers. The next day it rained and once the initial smear had cleared, the wipers were silky smooth and the water droplets seemed to glide off the glass more easily.
If that's the case I might apply it properly as long as it's designed for the job?
If that's the case I might apply it properly as long as it's designed for the job?