Organic color movement
SunAcid - Acid Stained Concrete
in Austin, TX
Looking for acid-stained concrete in Austin that delivers rich, natural color variation — not a painted surface?SUNDEK® SunAcid is a reactive acid stain system that chemically bonds with concrete to create translucent, marbled tones inspired by natural stone. Installed by Sundek of Austin, SunAcid produces one-of-a-kind depth and movement that cannot be replicated with standard pigment stains or topical coatings.
What Is Acid-Stained Concrete?
Stained Concrete is a popular decorative concrete finish that enhances plain slabs with rich, natural color. One of the most effective methods used to achieve this look is acid staining—a chemical coloring process that reacts directly with minerals in the concrete slab.
Unlike paint or surface-applied pigments, SunAcid:
- Penetrates the concrete
- Reacts chemically with the substrate
- Creates natural mottling and tonal variation
- Produces permanent coloration
Because the color becomes part of the concrete itself, it does not peel or flake like topical coatings.




Color That Becomes Part of the Concrete
SunAcid uses a muriatic acid-based solution that reacts with salts and minerals within the slab.
The result is:
Every installation develops unique patterns based on the concrete’s composition and preparation.
No Two Floors Are Alike
Acid staining is chosen by homeowners, designers, and commercial property owners who want authenticity and character.
Final appearance depends on:
- Original slab composition
- Age and condition of the concrete
- Surface preparation methods
- Application technique and dwell time
The finished surface often resembles:
- Natural stone
- Aged marble
- Weathered patina
- Leather-like textures
This unpredictability is what makes acid-stained concrete visually distinctive.

Ideal Applications in Austin
SunAcid performs beautifully in both residential and commercial settings throughout Central Texas.
Common applications include:
- Pool deck surrounds
- Patios
- Driveways and porte-cochères
- Outdoor living areas
- Walkways and entryways
- Courtyards
- Lobbies
- Retail floors
- Restaurants, bars, and hotels
From contemporary Austin homes to hospitality spaces downtown, acid staining offers a refined architectural finish.
Designed for Austin’s Climate
Concrete in Austin must endure:
- Intense UV exposure
- Foot traffic
- Temperature fluctuations
- Indoor-outdoor transitions
After staining, a professional-grade clear sealer is applied to enhance protection, improve durability, and deepen color richness.
With proper installation and maintenance, acid-stained concrete performs reliably in both residential and commercial environments.


How SunAcid Is Installed
Consistent results require careful preparation and timing.
Our trained artisans follow a structured process:
Managing reaction timing and neutralization is critical to achieving balanced color development and long-term performance.
Why Clients Choose Us
Acid staining is part chemistry and part craftsmanship. As part of the nationally recognized SUNDEK network, Sundek of Austin is trained in proper chemical handling, substrate preparation, and finishing techniques specific to the SunAcid system.
How different concrete slabs react
How to manage color expectations
How to prepare surfaces for consistent penetration
Precision surface preparation
Frequently Asked Questions
Is acid staining permanent?
Yes. The color becomes part of the concrete through chemical reaction and will not peel or flake like surface coatings.
Does acid stain work on any concrete slab?
Results depend on slab condition and composition. Proper surface preparation and evaluation are essential.
Is acid-stained concrete slippery?
Slip resistance depends on the sealer used. Traction additives can be incorporated when necessary, especially for pool decks.
How long does acid-stained concrete last?
When professionally sealed and maintained, acid-stained concrete provides long-term performance.

