For a long time I have been interested in staining concrete black without losing the texture and pattern of the concrete. I have tried paints and stains but most are too opaque and end up just looking black and not like concrete. This DIY steel table with concrete countertops was stained with a 1-to-1 mixture of india ink and water. I welded 3/16th inch thick plate steel, 2x2x3/16th inch steel angles, and 2×3/16 inch steel flat bars to make the frame for the table before screwing in a ¾” thick plywood board. We coated the plywood with a clear polyacrylic sealer to keep it from absorbing water out of the concrete. I used bathroom silicone caulk to seal between the steel and the plywood and make the mold water tight. We used Quikrete 5000 concrete mix with some steel mesh as reinforcement..