Vallejo Model Color: Drying Retarder 
The Model Color range contains 208 colors and an extensive assortment of mediums and varnishes, designed especially for miniature and model painting. The colors have been chosen with the help and advice of the best model painters from many countries.
Model Color was formulated with permanent pigments for fine arts; all colors are completely light-fast and opaque, with the exception of the fluorescent and transparent colors, which are semi-opaque. A few metallic pigments in an alcohol base are included in the range, since these give a harder brilliance than the water-based metallics.
Modelcolor is presented in plastic bottles of 17 ml. with an eyedropper device, which keeps paint from drying and prevents spills. 8 Metallic colors in an alcohol base are presented in childproof bottles of 35 ml.