General purpose colorant added to Alumilite plastic resin produces color range Grey to almost jet black - Cure retardantAlumilite color and cure rate retardant Color range Grey - Black)1.5 Ounces (42 grams) of ultra-fine graphite colorant compound for the Alumilite standard plastic formula. Produces any color from a light grey to a dark ebony/ black. Has the additional feature of retarding the work time and cure time for the plastic by up to twice normal. Also enables ultra-fine polishing of the finished plastic to a deep high gloss. The color is mixed with both A and B components of the Alumilite in equal measures. Premixed Alumilite / Colorant can be stored and has a shelf life the same as the original Alumilite. Colorant is shipped in a plastic dispensing bottle for easy weighing and mixing. Mixing ratio is: 7 grams in each of the A and B Alumilite bottles (28 Ounce size) . This will produce a "mid grey - battleship / gunmetal color. Since the color is throughout the whole product and cannot be scratched off like surface coatings. 10 grams per bottle will produce a beautiful ebony color. For perfect color each time shake both bottles before mixing and pouring into the molds.Ships FAST from California.