Reviving a Faded Acid-Stained Patio with Acrylic Sealer

A 4-year-old acid-stained patio (never sealed) has faded. Homeowner asks about applying acrylic stain over it.

Use Acrylic Sealer, Not Stain

Sealer enhances existing color (like wetting the surface) and protects. Restaining over old stain is unpredictable.

Prep & Application

1. Clean with TSP (trisodium phosphate) to remove grease, dirt, efflorescence.
2. Rinse thoroughly, dry 24+ hours.
3. Apply clear, UV-stable, breathable acrylic sealer (solvent-based preferred for penetration).
4. Two thin coats, per label.

Longevity

1–10 years depending on traffic. Recoat when water stops beading. It's a maintenance item, not permanent.

Resource

Concrete Network for product reviews and contractor referrals.