In our work on the Airstream, we first applied the wall board, then ran the laminate floor up to it. That, however, leaves an uneven gap of up to 3/8" inch (unless you are really, really good at cutting!). In a home, this is remedied by baseboard. In the curvy Airstream, baseboard would be impossible. Even if the board were flexible, it would have to flex both around the curve and, because the walls slant back slightly, up and down also. We tried a very thin piece of a concave molding about 1/2 inch deep and 1/2 inch high, but because it was concave it wouldn't stay flat on the floor while it bent.
Our solution: A 4" high vinyl wall base - in Almond. Even with its flexibility - a beautiful thing - we had to cut to account for the curves. (If you cut a 4" high piece of paper to lay flat against the wall touching the floor, it would form a big arc.) Thus, it took 3 pieces to make the corner. The stuff cuts wondefully. I started using a utility knife, but then happened to use scissors to make a rough cut, and ditched the utility knife. This is the result:
Like everything else, there is a knack to applying it that you master about the time you put the last piece on. It is self-stick with a very aggressive glue - once it's on, it is on. I learned to slide back the paper a little bit on one end, stick it where I wanted, then slip the paper back bit by bit and stick it. When finished, we got some almond caulking and now it looks like the right hand photo above. (For all you sticklers out there, I did go back and caulk the tiny spot at the bottom!) Here is the finished look - very clean and simple.