The monthly top-up
A light spray after the wash keeps water beading and dirt letting go.

Once a month, after a normal wash, mist a coating top-up spray onto one panel at a time while the car is still wet.
Spread it with a clean microfibre, then dry the panel. That’s it.
If water stops beading, the coating is usually just dirty. A decon wash brings it back.
Coating top-up spray