Yup, tillamook rv. Thats the place i went. The live-in maint guy here said he used Gaco to do his whole roof. I found it at a local builders supply store, $75 a 5 gallon bucket. Which sounds great to me, but i dont have everything i need such as a ladder, scrapers, pressure washer etc, with me.
The rv shop did have the "web seal" type of eternabond, but it has a cloth backing instead of the white stuff i see in the videos. So im not sure if its the same stuff or not. I would think that if its the wrong stuff that it would be a pain to remove to put on the right stuff.