The basics Graftobian Pro F/X Rubber Mask Grease (RMG), is made especially for use directly over latex or foam latex surfaces such as masks, fake wounds, bald caps, or other latex and foam latex appliances. The benefits Ideal for coating latex and foam latex due to its castor oil content, which protects the latex pieces.  The uses Six colors most commonly required to create bumps, bruises, contusions, etc: the yellow of jaundice, the maroon and purple of bruises, the green of rotting flesh, the charcoal of the burn and, of course a nice fleshy shade upon which to build your injury effect. The bottom line Presented in a wheel format with 6 different tones for characterization work and FX.