Hello, is it possible to apply an additional layer of clear varnish on a good clean and scratch-free varnish, e.g. 50 micrometers? Does the clear varnish have to be sanded or is it sprayed on like this? If I had it done on the bonnet for example, then I might have a better protection against impacting stone strokes. But also like this, would there be more reserve for polishing. Has someone ever had something like this done before? Greeting