Acid-Stained Concrete Floors: Beauty, Durability & Value

Acid staining transforms ordinary concrete into luxurious, stone-like floors at a fraction of the cost. Ideal for allergy sufferers (no carpet) and radiant-heat homes (max thermal transfer), stained concrete works indoors and out—patios, bathrooms, entries, driveways, living areas.

How It Works

Not paint. A water-based hydrochloric acid + metallic salts solution reacts with concrete's minerals/lime, creating permanent, variegated color. Results mimic marble—earthy browns with red/green undertones. No two floors are identical.

Process Overview

• New concrete: Cure 3 weeks, rinse, scrub.
• Old concrete: Deep clean—remove oil, paint, sealers, curing agents. Test patch first.
• Application: 1:1 water:stain covers ~400 sq ft/gal. Apply with non-metallic brush/broom in cool hours. Protect skin/eyes from acid.
• Finish: Sweep residue, dry, seal, then wax.

Pro vs. DIY

Results are unpredictable—even pros can't guarantee exact outcomes. For best results, hire an experienced contractor. Plan decor around the floor's organic variation.

Stained concrete: timeless, tough, and uniquely yours.