I used this epoxy to assemble a pontoon boat deck after having to cut it apart to remove excess floating foam. Epoxy is amazingly strong and adheres very well if directions are followed. I didn't try to sand or finish the seams which came out a little dirty as the epoxy doesn't smooth out very easily. but it's not big. Importantly, it holds up very well, seems to flex well at the seams, and is easy to work with. 10/10 will be used again.