水泥先生S

I've been using this on my latest model and the capillary action is incredible—it just pulls right into the tiniest gaps. The seam line practically disappears without any mess or extra sanding.

Finally, a liquid cement that actually seeps into the tightest seams on its own. The capillary action is incredibly satisfying to watch as it pulls itself along a joint. My model looks like a single solid piece now.