Old Masters Gel Stain - Rich TonesColour Palette (colours are approximate and should be tested on a piece of the wood you are using) Old Masters Gel Stain is a highly pigmented, oil based stain designed to achieve intense colors on interior and exterior wood, fiberglass, primed metal, and composition surfaces. Its thick formula allows easy application and superior color control, necessary to achieve a rich and uniform color on most surfaces in a single application. Gel Stain is