Do not use the TotalBoat Mixol Universal Tints to add color to TotalBoat Geloat or any other polyester resin products, such as TotalBoat Polyester Laminating Resin or TotalBoat Polyester Finishing Resin, because the results do not look very good and the material won't cure properly. A more effective way to tint gelcoat and ensure a proper cure is to use TotalBoat Pigment Dispersions, available in nine popular colors.