- Concrete Stain Home
- Get the Look - Stained Floor Pictures
- Color Chart: Concrete stain colors
- Comparison Chart: Compare acid stains, water-based stains and dyes
- Stain Buying Tips: Questions to ask before you buy
- How to Stain Concrete
- Types of Stains and Coloring Options
- Acid-Based Stains
- Water-Based Penetrating Stains
- Concrete Dyes
- Concrete Paint
- Exterior Concrete Stain: Click through images of outdoor stained concrete projects
- Stains and Equipment Product Reviews
- Troubleshooting Concrete Stains
- Common Staining Issues: Tips from expert Chris Sullivan
- Removing Stains from Concrete
Acid-Based Stains for ConcreteDiscover the pros and cons of using acid stains to color concrete
Most acid stains are a mixture of water, hydrochloric acid, and acid-soluble metallic salts. They work by penetrating the surface and reacting chemically with the hydrated lime (calcium hydroxide) in the concrete. The acid in the stain lightly etches the surface, allowing the metallic salts to penetrate more easily. Once the stain reacts, it becomes a permanent part of the concrete and won't fade, chip off, or peel away.
Water Based vs. Acid Stains: A look at new water-based stains for concrete and how they compare to traditional acid stains
Like stains for wood, acid-based stains are translucent and the color they produce will vary depending on the color and condition of the substrate they are applied to. Each concrete slab will accept the stain in varying degrees of intensity, creating natural color variations that bring character and distinction to each project. What acid stains don't offer is a broad color selection. You'll mostly find them in a limited array of subtle earth tones, such as tans, browns, terra cottas, and soft blue-greens.
Acid stains require neutralization to stop the chemical reaction. Use a solution of water and either baking soda, T.S.P, or ammonia and rinse thoroughly.
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