aircrash

I don`t know about the spray he uses.
If it is something that makes a thick elastic coating then it will help.

I apply one layer from the outside to the whole fuselage and one layer to the inside, but not to the tail that it is impossible to do so.

If you apply it carefully and do not let it have bubbles then it will be nice looking.

You can see the photos.
From top to bottom there is a HBCT taped fuselage, a green BOLtaped fuselage and a blue one taped fuselage.
Then there is my first BOL`s fuselage that I had not taped and broke. Then I taped it but not with so good result.
The other BOL that are in the photo have a stock fuselage (indoors flights or just brand new sitting there).