Stamped Patio Concrete Repair with MatchCrete™ Clear Matching color and texture repairs in stamped and colored concrete is easier with Roadware MatchCrete Clear. Spalled stamped concrete patio. Mixing color pigment into MatchCrete Clear in a cup to repair and match a stamped concrete patio slab. Mixing MatchCrete Clear with sand and pigment in a cup. Pouring MatchCrete Clear mixed with sand and pigment into a crack in a stamped concrete slab. Adding sand to a MatchCrete Clear repair in a stamped concrete patio slab. Finished MatchCrete Clear repair with matching sand color in a stamped concrete slab.