The Rv Roof Man-What does he use?

I just read an older post here about a guy out of Sacramento "The Rv Roof Man" that has a video on his website that shows what looks like a DIY stuff and it looks like they are doing one coat-no primer. They use some tape too--not sure if it is Eternabond or not. I wonder what his "Forever Roof" product is. Some said silicone and that you had to use a primer but in the video it looks like he is just slapping it on a roof-no primer. Anyone have any ideas or personal experience with this coating/business?
http://www.thervroofman.com/video-gallery.html