Repairing a small crack in the roof of my camper trailer

Dicor is what I'd use, but either type will work for that repair. Self level would be best choice, but if I had a non-leveling tube already open, that will work too. A little paint thinner on my finger does a good job of leveling, when needed.

Use of painters tape will eliminate most of the messy look. Just remove it before the dicor starts to set up.

Jerry