This item is paint in a bottle for use in finishing models. Cement is not required, but painting is necessary.
Here's a set of four 15ml bottles of lacquer-based paints for coloring Kotobukiya's King Kittan, Enki, and Dayakkaiser model kits (linked below). This set includes one bottle of each color: King Kittan yellow, King Kittan pink, Enki blue, and Dayakkaiser blue.