I just sprayed it and left it in the 91 degree sun. 3 hours later I sprayed another coat. I never touched it, spread it, wiped it, nothing.
In fact I still haven’t touched it. Ran the water over it like you see in the video but never touched it with anything.
I believe this is one of the steps you must follow to have success with the top.
let me know if you have any other questions.
G