Smooth-Cast® ColorMatch® plastics were developed specifically for adding color. Small amounts of SO-Strong®, UVO, & Ignite® color will yield accurate, vivid colors for an infinite variety of mind-blowing effects. They are also ideal for creating marble and wood grain casting effects, or duplicating the look of real metal. Smooth-Cast® plastics offer tremendous versatility and economy. They are easy to use and are perfect for casting detailed models, props and cast effect pieces.