yeah that's what i was trying to do was let it get tacky and then apply the next, but some of it got tacky while i was in the middle of a strip, making like an edge of it that kinda had resin on it but wasn't soaked all the way and wasn't stuck down against the side when it got too tacky to manipulate. I knew it wasn't fully cured when I came back to sand it (even though the directions claimed it should be) because I could feel that it was still sticky, but it was still hard enough to sand so I went ahead and got rid of some the bubbles and that sticking up edge. I used a sanding disk on an electric drill, which is just as good as an orbital sander.