Giani Granite Step 2 Mineral Color - Charcoal 6oz The 6 oz. Step 2A Charcoal Mineral is a standard color included in the Slate Countertop Paint Kit. Water-Based Acrylic Paint, Safe, Low on Odor, and VOCs, Covers 35 Sq. Ft. of Countertops, Full Dry Time: 4 Hours