Just shake it and use it. This color has been formulated in consideration of the Scale Reduction Effect (subtle lighter than actual color), to obtain the correct colors in our kits. The paint is designed to be effective for airbrush and brush and is water-soluble, avoiding strong smells and harmful solvents. It can be easily thinned with the specific acrylic thinner or water if necessary. The acrylics are manufactured by AK Interactive and are made with a formula that prevents clogging in the airbrush.