Matrix stone repair mortar combines time proven field performance with the most extensive laboratory testing of any similar material. The Matrix program allows the trained applicator to do on-site color matching for mockup approvals. The Matrix fob set, has 72 physical swatches that faithfully reproduce the actual color and texture of the cured Matrix material with shaved finish. This greatly reduces the time to choose the correct match for your project. No more sending samples of stone off and waiting weeks for a sample to come back.