These pigments are epoxy-based liquid colorants used to tint the epoxy mixture to provide an even color base for the final finish system. The colored surfaces tend to highlight flaws and imperfections. Cured, pigmented epoxy surfaces are not a final finish surface, but require an additional opaque or UV filter coating for ultraviolet protection. Add to the mixed resin/hardener at a rate of approximately one teaspoon of pigment to 8 fl. oz. of epoxy. More pigment will increase opaqueness and mixture viscosity. One 4 fl. oz. bottle will tint approximately 2-3 gal. of epoxy.