American Crafts Color Pour Stone Resin Silicone Mold Rainbow Coaster Color Pour Stone Resin colorants are the fastest and easiest way to add a splash of cool color to any project. Mix and match colors, then swirl and pour the resin into the mold. Stone Resin doesnt respond well to all pigments, so we formulated these to specifically work with Stone Resin. They are richly pigmented, and a little goes a long way. This package includes 4 colorants in a variety of neutral colors.