SPEC MIX® Mortar Color is a dry pigment consisting of synthetic iron oxide pigments that are specifically weighted to ensure colored mortar uniformity and consistency when mixed with SPEC MIX® Masonry Mortars. Each color container is formulated to match, as close as possible, the representative color in the SPEC MIX® Colored Mortar display kit. To achieve the specified mortar color, mix one Mortar Color container with one 80 lb (36.2 kg) bag of preblended SPEC MIX® Masonry Mortar.