Citadel Technical: Liquid Green Stuff
Liquid Green Stuff is the ideal tool for filling in small gaps on a miniature. Because it is water soluble you can use a normal Citadel Paint Brush to apply it (just make sure you wash the brush afterwards). The Liquid Green Stuff will then set in place, filling the gap neatly and efficiently. It can also be filed using the Citadel Emery Boards for an even smoother finish.